Environment and Ecology

ENVIRONMENT AND ECOLOGY

Interdisciplinary International Science Journal of Agricultural Science Relevant Research

ISSN 0970-0420 (Print) | 3049-3625 (Online)

The Journal is enlisted in NAAS, Web of Science.
Indexed in EBSCO.
NAAS Rating is 4.87

Volume 42 (4B) 2024

Assessment of Soil Quality of Different Villages in Chauth Ka Barwara Block in Sawai Madhopur District, Rajasthan

Kamlesh Kumar Akhand, Y.V. Singh, Prem Kumar Bharteey, Rajesh Kumar, Kajal Singh, Ayush Bahuguna

Environment and Ecology 42 (4B) : 1843—1852, October—December 2024

Article DOI: https://doi.org/10.60151/envec/UCPI2827

How to cite this paper:

Akhand, K. K., Singh, Y. V., Bharteey, P. K., Kumar, R., Singh, K., Bahuguna, A., & Meena, R. (2024). Assessment of Soil Quality of Different Villages in Chauth Ka Barwara Block in Sawai Madhopur  District, Rajasthan. Environment and Ecology, 42(4B), 1843–1852. https://doi.org/10.60151/envec/UCPI2827

A study was conducted to assess the soil quality of Chauth Ka Barwara block in Sawai Madhopur district, Rajasthan. A total of thirty soil samples were collected at a depth of 0–15 cm. The samples were obtained at regular intervals of around 1 km, utilizing a random sampling approach. The soil samples were air dried in a shade area at room temperature, grind into a fine powder using a ceramic mortar, and filtered a 2 mm sieve and subsequent physico-chemical analysis. The results showed the bulk density (1.12–1.46 g cm-3), particle density (2.22–2.92 g cm-3), porosity (38.72–52.35%), water holding capacity (27.30-44.92%), pH (6.2–8.2), electrical conductivity (0.11–0.89 dS m-1), organic carbon (0.16–0.99%), available nitrogen (62.72–188.16 kg ha-1), available phosphorus (6.72-52.86 kg ha-1), available potassium (246.4–397.5 kg ha-1), available sulfur (1.11–12.26 kg ha-1), available calcium (1.10–25.5 meq 100-1), available magnesium(1.8–23.6 meq 100-1), available iron (1.80–7.40 mg kg-1), available manganese (1.50–8.10 mg kg-1), available copper (0.11–2.30 mg kg-1), and available zinc (0.10–4.30 mg kg-1). The analysis reveals that 43.33% of the samples demonstrate a moderately alkaline response, 6.66% produce a strongly alkaline reaction, and 26.66% present a neutral reaction.  90% of samples fall within the acceptable range while 10% exceed it marginally. The organic carbon content is classified as low at 53.33%,  high at 16.66%, and medium at 30%. The study emphasizes the vital significance of soil fertility in fostering sustainable agricultural output.

Macronutrient, Micronutrient, Physico- chemical properties, Soil quality.

Biosurfactant Producing Bacteria from Groundnut Oil Cake and its Application in Pesticide Removal

Jaynesh K. Ambechada, Valentina V. Umrania

Environment and Ecology 42 (4B) : 1853—1862, October—December 2024

Article DOI: https://doi.org/10.60151/envec/TAOJ9445

How to cite this paper:

Ambechada, J. K., & Umrania, V. V. (2024). Biosurfactant Producing Bacteria from Groundnut Oil Cake and its Application in Pesticide Removal. Environment and Ecology, 42(4B), 1853–1862. https://doi.org/10.60151/envec/TAOJ9445

A member of the class of organophosphate pesticides that are commonly used in agricultural activities worldwide is ethion, also known by its chemical name, phosphorodithioate, or O, O, O’, O’-tetraethyl S, S’-methylene bis. Its broad-spectrum insecticidal properties make it indispensable for controlling various pests in crops such as fruits, vegetables, and cereals. However, the indiscriminate use of ethion raises concerns due to its toxicity to non-target organisms, persistence in the environment, and potential adverse effects on human health. It was studied how bacteria that produce biosurfactants and were isolated from groundnut oil cake broke down ethion aerobically. In comparison to the FCO limitations of 5.77, 1.05, and 2.43 for Nitrogen, Phosphorus, and Potassium, the chemical analysis of groundnut oil cake revealed greater levels of these elements. Based on nutritional analysis, groundnut cake has low fiber content but high levels of carbohydrates (34.3%), moisture, starch, and proteins (5.33%, 16.7% and 36.12%, respectively), fat (13.67%), and ash (5.42%). The results of biosurfactant production screening showed that 17 isolates were positive for haemolytic activity, 11 were positive for Drop collapsed test and 2 isolates B. niabensis (B) and B.  endophyticus (C) showed highest emulsification index 80% and 82% respectively. These two isolates B. niabensis and B. endophyticus were identified by 16S rRNA sequencing method. Both of them were found to produce glycolipid and lipopeptide after FTIR analysis. GC-MS analysis of degradation study showed significant degradation of ethion. The findings have consequences for how a bioremediation approach should be developed.

Groundnut oil cake, Biosurfactant producing bacteria, Pesticide removal, Ethion degradation, Bioremediation.

Effect of Clerodendrum infortunatum L. Leaf Extracts on the Growth and Development of Maize (Zea mays L.)

Hisniawki Sungoh, Paul Lalremsang

Environment and Ecology 42 (4B) : 1863—1868, October—December 2024

Article DOI: https://doi.org/10.60151/envec/HPXM9565

How to cite this paper:

Sungoh, H., & Lalremsang, P. (2024). Effect of Clerodendrum infortunatum L. Leaf Extracts on the Growth and Development of Maize (Zea mays L.). Environment and Ecology, 42(4B), 1863–1868. https://doi.org/10.60151/envec/HPXM9565

 

The allelopathic effects of C. infortunatum leaf extracts were assessed to determine their impact on maize growth and development. Extracts were prepared at varying concentrations: C0 (0%), C20 (20%), C40  (40%), C60 (60%), C80 (80%) and C100 (100%). Results showed that C. infortunatum extracts generally promoted growth across all measured parameters. However, at the highest concentration (C100), inhibitory effects were noted in laboratory bioassays, specifically affecting shoot length and fresh and dry biomass weight.  Despite this, significant stimulatory effects (p<0.05) were observed in all growth parameters during the polypot experiment. The inhibition at higher conc perhaps attributed to the existence of phenolic compounds for example 4-(1-methylpropyl) phenol as well as 3,5-bis (1,1-dimethylethyl) phenol in leaf extracts. This study aimed to evaluate the compatibility of C. infortunatum allelopathic effects with agricultural crops in various land use systems in the region.

Clerodendrum infortunatum, Aqueous extracts, Inhibitory, Stimulatory.

Effect of Different Lengths of Cuttings on Percentage of Survival and Establishment of Jasmine (Jasminum sambac L.) var. Local

Rojalin Patalasingh, V. Lakshmi Prasanna, Subrat Kumar Senapati, Sukirti Mohanty, Subhendu Jena, Mousumi Mohanty

Environment and Ecology 42 (4B) : 1869—1875, October—December 2024

Article DOI: https://doi.org/10.60151/envec/CPFA8192

How to cite this paper:

Patalasingh, R., Prasanna, V. L., Senapati, S. K., Mohanty, S., Jena, S., & Mohanty, M. (2024). Effect of Different Lengths of Cuttings on Percentage of Survival and Establishment of Jasmine (Jasminum sambac L.) var. Local. Environment and Ecology, 42(4B), 1869–1875. https://doi.org/10.60151/envec/CPFA8192

An experiment was conducted on effect of different lengths of cuttings on percentage of survival and establishment of Jasmine (Jasminum sambac L.) var. Local” in the experimental site of Instructional Farm-I, Nuagaon, Shampur which is operated under Institute of Agricultural Sciences (FAS) Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar during September 2022 to May 2023. The experiment was laid out in Factorial Randomized Block Design with four replications and nine treatment combinations consisting of three types of cuttings viz., hardwood cuttings (T1), semi hardwood cuttings (T2) and terminal cuttings (T3) and three types of lengths viz., 15cm (L1),20 cm (L2) and 25 cm (L3). Among three different levels of length of cuttings tried, parameters like days taken for sprouting (32.61) and days taken for establishment (41.42) were observed to be minimum in 25cm length of cuttings. Besides, maximum number of sprouts per cutting (1.81), number of shoots per cutting (1.60), length of longest shoot per cutting (14.02 cm), number of leaves per rooted cutting (8.27), length of longest root (9.91cm), survival percentage of rooted cuttings (46.25%), number of roots per cutting (15.13) and leaf area of the largest leaf (12.27cm2 ) were recorded in 25 cm length of cuttings. Different levels of lengths could not influence the days taken for sprouting and survival percentage of rooted cuttings significantly. Hence, adoption of 25 cm length of cuttings was found to be most suitable for establishment and survival of Jasminum sambac var. Local which can be recommended to the flower growers for its commercial cultivation in and around Bhubaneswar.

Jasmine, Length, Cuttings, Rooting, survival percentage.

Synergistic Substrate Formulation for Enhanced Oyster Mushroom Production Using Tectona grandis Leaves, Waste Paper, and Straw

Mrutyunjay Padhiary, Pankaj Roy, Poulami Dey

Environment and Ecology 42 (4B) : 1876—1881, October—December 2024

Article DOI: https://doi.org/10.60151/envec/IAMX1320

How to cite this paper:

Padhiary, M., Roy, P., & Dey, P. (2024). Synergistic Substrate Formulation for Enhanced Oyster Mushroom Production Using Tectona grandis Leaves, Waste Paper, and Straw. Environment and Ecology, 42(4B), 1876–1881. https://doi.org/10.60151/envec/IAMX1320

A biotechnologically viable way to convert lignocellulosic waste into high-protein, nutritional food is through mushroom cultivation. The purpose of this study is to examine the efficacy of Tectona grandis leaves combined with wheat straw as a growing medium for Pleurotus sajor-caju oyster mushrooms. The productivity and biological efficiency (BE) of various substrate compositions were assessed in a number of experiments. The highest BE of 43.1 % was achieved with a substrate mix that included 50% waste paper and 50% rice straw; the lowest BE of 11.52% was attained with waste paper alone. The study also looked into the potential use of sodium nitrate and Tectona grandis leaves as dietary supplements in the substrate mixture. The findings demonstrated that compared to standard substrates, a combination of T. grandis leaves, discarded paper, and straw produced a significantly higher number of mushrooms. Strong mycelial growth and the development of fruiting bodies were the results of further increasing the nutritional content with the addition of sodium nitrate.

Oyster mushroom cultivation, Substrate formulation, Tectona grandis leaves, Waste paper, Sodium nitrate supplementation, Biological efficiency, Sustainable agriculture.

Growth, Yield and Economics as Influenced by Integrated Weed Management and Cultivars of Black Rice under Nagaland Condition

Hillel M. Chishi, D. Nongmaithem

Environment and Ecology 42 (4B) : 1882—1887, October—December 2024

Article DOI: https://doi.org/10.60151/envec/RMSE1499

How to cite this paper:

Chishi, H. M., & Nongmaithem, D. (2024). Growth, Yield and Economics as Influenced by Integrated Weed Management and Cultivars of Black Rice under Nagaland Condition. Environment and Ecology, 42(4B), 1882–1887. https://doi.org/10.60151/envec/RMSE1499

An experimental investigation was conducted during the kharif season of 2021 and 2022 at the experimental site of the School of Agricultural Sciences (SAS), Nagaland University, Medziphema. The main plot included four integrated weed management measures, namely Weedy check (control), Hand weeding (15 and 30 DAS), Pretilachlor @ 1.0 kg ha-1 (PE) fb HW at 40 DAS and Pretilachlor @ 1.0 kg ha-1 (PE) + Bispyribac sodium @ 25 g ha-1 (PoE) at 20 DAS while four cultivars namely Chakhao Poireiton (Control), Chakhao Amubi, Wairi Chakhao and Khurukhul Chakhao under the sub-plot and laid out in Split plot design (SPD). At 40 DAS, both total weed population and dry weight was recorded with hand weeding at 15 and 30 DAS and was followed by the application of pretilachlor @ 1.0 kg ha-1 (PE) fb HW at 40 DAS. Among cultivars, Chakhao Poireiton and Wairi Chakhao registered lowest and highest total weed population and dry weight respectively. Weedy check (control) recorded the lowest growth, yield and economics while the maximum result was obtained with hand weeding at 15 and 30 DAS and was closely followed with application of pretilachlor @ 1.0 kg ha-1 (PE) fb HW at 40 DAS. Among the cultivars, Chakhao Poireiton and Wairi Chakhao recorded the highest and lowest growth, yield and economical studies in both the years respectively.

Black rice, Cultivar, Hand weeding, Pretilachlor, Weed.

Heavy Metal Contamination in the Kali River: Irrigation Unsuitability and its Adverse Effects on Human Health

Monu Kumar, Anita, Mahiya Kulsoom, Aneet Kumar Yadav, Kamla Pat Raw, Sreekanth Bojjagani, Narendra Kumar

Environment and Ecology 42 (4B) : 1888—1896, October—December 2024

Article DOI: https://doi.org/10.60151/envec/ITZH4467

How to cite this paper:

Kumar, M., Anita, Kulsoom, M., Yadav, A. K., Raw, K. P., Bojjagani, S., & Kumar, N. (2024). Heavy Metal Contamination in the Kali River:  Irrigation Unsuitability and its Adverse Effects on Human Health. Environment and Ecology, 42(4B), 1888–1896. https://doi.org/10.60151/envec/ITZH4467

This study evaluates the concentration of heavy metals in the Kali River, Uttar Pradesh (from Bhavanpur, Saharanpur to Pithlokhar, Meerut). Some heavy metals (HMs) (Cr 10.3-479.6 µg/l, Mn (128.3-9054.5 µg/l), Fe (0-14534 µg/l), Ni (0-789.7 µg/l), Cu (57.2-32720.1 µg/l), Zn (89.7-6487.8 µg/l), As (17.3-90 µg/l), Cd (7.8-184.7 µg/l), and Pb (57.3-1860.1 µg/l) were among the HMs that exceeded allowable limits. Few risk assessment metrics (Degree of Contamination (Cd), Hazard Quotient (HQ), Carcinogenic Risk (CR), Heavy Metal Evaluation Index (HEI), and Total Hazard Index (THI) ) were applied to check the hazardous effect. However, the S2 sampling location had the greatest HPI indices, whereas Dable village (S19) had the highest values of Cd, HEI, and THI. Health risks are more likely to affect adults and children, especially in rural locations. The pollution also seriously impairs the water’s suitability for irrigation, which affects the quality of the crops and the health of the soil. To protect agricultural and human populations, immediate regulatory actions and routine water quality monitoring are required.

HPI, THI, Kali river, Health risk, Heavy metal.

Genetic Variability, Correlation, Path Coefficient Analysis and Diversity Assessment of Yield and Yield Related Components in Indian Mustard (Brassica juncea L.)

Amit Kumar, P. N. Verma, Vinod Kumar Pandey, Sajal Saha

Environment and Ecology 42 (4B) : 1897—1905, October—December 2024

Article DOI: https://doi.org/10.60151/envec/BEHI8440

How to cite this paper:

Kumar, A., Verma, P. N., Pandey, V. K., & Saha, S. (2024). Genetic Variability, Correlation, Path Coefficient Analysis and Diversity Assessment of Yield and Yield Related Components in Indian Mustard (Brassica juncea L.). Environment and Ecology, 42(4B), 1897–1905. https://doi.org/10.60151/envec/BEHI8440

The present investigation was conducted during the rabi season December 2022 to April 2023 at Instructional Farm Unit 4 of the Integral Institute of Agricultural Science and Technology (IIAST), Integral University Lucknow.  The objective was to assess the genetic variability, heritability, and genetic divergence among ten mustard genotypes (Brassica juncea L.) crossed in a half diallel mating design, resulting in 56 genotypes, including a standard check ‘Kranti’. These genotypes were cultivated in a Randomized Complete Block Design with three replications. Key yield-affecting traits were observed, including days to 50% flowering, days to maturity, plant height, number of primary and secondary branches, number of siliqua plant-1, number of seeds silique-1, length of siliqua, thousand seed weight, and seed yield plant-1. The analysis revealed significant genetic variability for traits like the number of primary and secondary branches plant-1, number of siliqua plant-1, and thousand seed weight. High heritability was noted for plant height, days to maturity, number of secondary branches plant-1, and number of siliqua plant-1. Seed yield plant-1 showed strong positive correlations with thousand seed weight, length of siliqua, and number of siliqua plant-1. Path coefficient analysis indicated that thousand seed weights had the most substantial positive direct effect on yield. Cluster analysis demonstrated significant genetic diversity, with notable differences among clusters, which is beneficial for breeding programs. Thousand seed weight and oil content were the primary contributors to genetic divergence.

Variability, Genetic diversity, GCV, PCV, Heritability, Genetic advance.

Study on Effect of INM on Growth, Yield and Quality of Onion (Allium cepa L.)

Vikas Kumar, Sandeep Kumar Rajvanshi, Deepak Kumar

Environment and Ecology 42 (4B) : 1906—1911, October—December 2024

Article DOI: https://doi.org/10.60151/envec/FTJS8529

How to cite this paper:

Kumar, V., Rajvanshi, S. K., & Kumar, D. (2024). Study on Effect of INM on Growth, Yield and Quality of Onion (Allium cepa L.). Environment and Ecology, 42(4B), 1906–1911. https://doi.org/10.60151/envec/FTJS8529

A field experiment was carried out at Government Agriculture Farm, Department of Agriculture, Kadrabad, Bijnor, Uttar Pradesh during the rabi season of 2022-23 with 3 replications and 8 treatments combinations. The grouping of organic, inorganic and bio-fertilizer is giving good results. They are increased the Height of Plant, Number of Leaves, Length of Leaves, Polar Diameter, Equatorial Diameter, Neck Thickness, Number of Scales, Total Soluble Solids and Ultimately Yield (q/ha) in onion. The application of integrated nutrient like inorganic, organic, FYM @ 15 tonnes/ha and bio-fertilizer T8 (NPK+FYM +Azotobacter Phosphate Solubilizing Bacteria), may be suitable for commercial cultivation of onion under western Uttar Pradesh Condition. The present study shows that the onion cv ‘Nasik Red’ performs very well with T8 resulting under bijnor condition.

Integrated Nutrient Management (INM), Quality, Nasik red, FYM, PSB, Azotobacter, Bio-fertilizer.

Effect of Nitrogen Management and Silicon Fertilization on Crops

Sujay Kumar Paul, Ganesh Chandra Malik, Mahua Banerjee, Sumit Ray, Sitabhra Majumder, Sapparapu Sai Sivani, Tanmoy Shankar, Duvvada Sarath Kumar

Environment and Ecology 42 (4B) : 1912—1925, October—December 2024

Article DOI: https://doi.org/10.60151/envec/UANW2908

How to cite this paper:

Paul, S. K., Malik, G. C., Banerjee, M., Ray, S., Majumder, S., Sivani, S. S., Shankar, T., & Kumar, D. S. (2024). Effect of Nitrogen Management and Silicon Fertilization on Crops. Environment and Ecology, 42(4B), 1912–1925. https://doi.org/10.60151/envec/UANW2908

Nitrogen management has a substantial impact on crop growth stages and yields. Split nitrogen administration at specific growth stages improves nutrient utilization, reduce losses and increase yield. Several studies have shown that applying nitrogen in fractions throughout the life cycle improves nutrient uptake efficiency while minimizing environmental contamination. Proper judicious nitrogen application impacts soil properties by affecting nutrient availability. Nitrogen management based on the Leaf Color Chart (LCC) is successful in terms of optimizing nitrogen delivery and enhancing yield characteristics. Silicon fertilization has shown encouraging outcomes in terms of plant growth, yield, and stress tolerance across a variety of crops. Silicon also improves the soil features such as nutrient availability and pH regulation, resulting in increased plant nutrient uptake. The interaction effects of silicon with other nutrients show synergistic effects that improve nutrient absorption and yield. Silicon interacts with nitrogen, phosphorus, potassium, and other nutrients, which promotes crop performance and nutrient efficiency. Application of nitrogen and silicon management strategies can boost crop yield, nutrient efficiency, and sustainability in agricultural systems. However, additional research is needed to understand the intricate mechanisms behind the interactions of nitrogen, silicon, and other nutrients in crop-soil systems to develop more effective nutrient management strategies. This review deals with different aspects of nitrogen fertilization in crops and simultaneous silicon application and interaction among both. The aspects of growth parameters, yield attributes, yield, economics, soil characteristics and efficiency studies have been assessed.

Agricultural management, LCC, Nitrogen, Silicon.

Response of Brinjal (Solanum melongena L. cv Boral.) to Different Organic and Synthetic Mulches

Puspa Laxmi Debbarma, Sudipta Gorai, Anannya Banerjee, Pinaki Acharyya

Environment and Ecology 42 (4B) : 1926—1932, October—December 2024

Article DOI: https://doi.org/10.60151/envec/WUPM9173

How to cite this paper:

Debbarma, P. L., Gorai, S., Banerjee, A., & Acharyya, P. (2024). Response of Brinjal (Solanum melongena L. cv Boral.)  to Different Organic and Synthetic Mulche. Environment and Ecology, 42(4B), 1926–1932. https://doi.org/10.60151/envec/WUPM9173

A field study was conducted to evaluate the effect of different mulch materials on growth, yield and different qualitative characters of brinjal (var  Boral). Different mulches used during the study were black polyethylene mulch, yellow polyethylene mulch, transparent polyethylene mulch, mango leaf, paddy straw, saw dust and sun grass along with bare soil as the control. Different mulches generated higher soil temperature and moisture regimes over the control. The maximum increase in soil temperature at noon was observed under transparent polyethylene mulch by 3.750C. Black polyethylene was found most effective in conserving higher moisture level than control, followed by yellow and transparent mulch. Weed population was significantly suppressed under black polyethylene mulch. Days to 50% flowering followed by days to first harvest were recorded at 54.27 and 86.21 days after transplanting under black polyethylene mulch as compared to rest of the treatments. Plant height, number of primary branches per plant, number of leaves/plant, fruit yield and average fruit weight recorded higher values under black polyethylene mulches. Chlorophyll content was markedly increased for the same along with straw mulches. Paddy straw mulch improved the ascorbic acid content in brinjal followed by mango leaf mulch. Increased anthocyanin pigmentation in brinjal fruits were observed in saw dust mulch followed by black polyethylene mulch.

Brinjal, Mulching, Yield, Soil temperature, Soil moisture, Weed.

Role of Cutting-Edge Technology in Horticulture Crops for Shaping the Future Smart Farming Ecosystem: A Comprehensive Review

Mukesh Kumar, Abhishek Kumar, Sajjan Kumar, G.T. Patle, Surender Kumar, Anju Tanwar

Environment and Ecology 42 (4B) : 1933—1942, October—December 2024

Article DOI: https://doi.org/10.60151/envec/KSOK1056

How to cite this paper:

Kumar, M., Kumar, A., Kumar, S., Patle, G. T., Kumar, S., & Tanwar, A. (2024). Role of Cutting-Edge Technology in Horticulture Crops for Shaping the Future Smart Farming Ecosystem: A Comprehensive Review. Environment and Ecology, 42(4B), 1933–1942. https://doi.org/10.60151/envec/KSOK1056

Agricultural automation is rapidly advancing worldwide, with crop management systems optimizing cultivation across diverse conditions. In India, where horticultural crops are economically vital despite limited land, innovative technologies like AI, blockchain, IoT, remote sensing, and hydroponics are key to meeting growing demand. Advances in AI, robotics, and machine learning now enable effective monitoring of plants, pests, and diseases. This review examines the global impact of these technologies on horticulture, including their effects on food production, associated challenges, and future prospects, along with digital tools for farm management.

Automation, Blockchain, Artificial intelligence, IoT, Vertical farming, Remote sensing.

Assessment of Genetic Variability and Heritability of Morpho-Physiological Traits in Indian Mustard (Brassica juncea) Genotypes under Heat Stress

Narendra Padra, Bhagirath Ram, Amita Singh, Poonam Fozdar

Environment and Ecology 42 (4B) : 1943—1950, October—December 2024

Article DOI: https://doi.org/10.60151/envec/PWMT5262

How to cite this paper:

Padra, N., Ram, B., Singh, A., & Fozdar, P. (2024). Assessment of Genetic Variability and Heritability of Morpho-physiological Traits in Indian Mustard (Brassica juncea) Genotypes under Heat Stress. Environment and Ecology, 42(4B), 1943–1950. https://doi.org/10.60151/envec/PWMT5262

To assess genetic variability, broad-sense heritability and genetic advance among Indian mustard genotypes, a study was conducted using 18 genotypes (including one check) under heat stress conditions. The experiment followed a Complete Randomized Block Design (CRBD) with three replications, carried out at the ICAR-Directorate of Rapeseed-Mustard Research, Bharatpur, Rajasthan, during the rabi season of 2020-2021. In terms of mean performance, genotype DRMRHT-18-134 took the least number of days (33.5 days) to reach 50% flowering, while genotype DRMRHT-18-142 had the highest seed yield per plant (30.00 g). The phenotypic coefficient of variation (PCV) was greatest for the membrane stability index (44.42%), as was the genotypic coefficient of variation (GCV) (44.25%). Heritability estimates in the broad sense were notably high for the membrane stability index (99.48%). Additionally, high heritability combined with a significant genetic advance was observed for the membrane stability index, secondary branches per plant and seed yield per plant. For traits like days to 50% flowering and chlorophyll b content (mg/g FW), high heritability was associated with moderate genetic advance, while chlorophyll a content (mg/g FW) showed low heritability with moderate genetic advance.

Heritability, Phenotypic coefficient variation, Genotypic coefficient variation.

Evaluation of Sucking Purpose Seedling Origin Mango Genotypes from South Gujarat

Nikita Patel, Y. N. Tandel, Vipasha Dangariya

Environment and Ecology 42 (4B) : 1951—1957, October—December 2024

Article DOI: https://doi.org/10.60151/envec/TPBW8023

How to cite this paper:

Patel, N., Tandel, Y. N., & Dangariya, V. (2024). Evaluation of Sucking Purpose Seedling Origin Mango Genotypes from South Gujarat. Environment and Ecology, 42(4B), 1951–1957. https://doi.org/10.60151/envec/TPBW8023

A survey was carried out for sucking type seedling mango genotypes in five districts (Navsari, Valsad, Tapi, Surat & Dang) of South Gujarat region during year of 2021 to 2023. Trunk circumference ranged from 39 to 285 cm, plant spread from 1.85 to 24.51 m, leaf length from 19.33 to 33.64 cm, leaf width from 5.26 to 10.15 cm, petiole length from 2.60 to 6.16 cm, number of fruit per tree from 35 to 453, yield from 6.17 to 178 kg/tree, fruit weight from 90.49 to 500.67 g, fruit length from 6.42 to 13.82 cm, fruit width from 5.33 to 10.27 cm, pulp from 49.14 to 73.91%, peel from 10.74 to 35.50%, stone from 12.05 to 28.84%, pulp/stone ratio from 0.45 to 2.54, TSS from 11.9 to 26.3 °Brix, acidity from 0.06 to 1.25%, ascorbic acid from 10.56 to 52.59 mg/100 g, total sugars from 7.61 to 20.76 %, reducing sugars from 2.22 to 13.66%, non-reducing sugars from 0.88 to 16.59%, TSS/acid ratio from 13.76 to 279.98. Six superior genotypes, namely NMS-18, NMS-30, NMS-48, NMS-50, NMS-132, and NMS-149 were identified on the basis of desirable characteristics that was fruit weight (>150 g), pulp percentage (>60.00 %), peel percentage (<20.00 %), stone percentage (<20.00 %) and TSS (>17 °Brix).

Mango, Sucking type, Selection, Variability,
Characterization.

Off-Season Seedling Production of Sikkim Local Cucumber (Cucumis sativus) under Polytunnel of Different Heights

Umesh Chettri, Sujata Upadhyay, Laxuman Sharma, S. Manivannan

Environment and Ecology 42 (4B) : 1958—1966, October—December 2024

Article DOI: https://doi.org/10.60151/envec/PGQB3117

How to cite this paper:

Chettri, U., Upadhyay, S., Sharma, L., & Manivannan, S. (2024). Off-Season Seedling Production of Sikkim Local Cucumber (Cucumis sativus) under Polytunnel of Different Heights. Environment and Ecology, 42(4B), 1958–1966. https://doi.org/10.60151/envec/PGQB3117

The present study was conducted by Dept  of Horticulture, Sikkim University, Gangtok at Nandok village, East Sikkim, Sikkim during 2015-2016 with the objectives to compare the effect of different dates of sowing and different height of poly-tunnel on cucumber seedling growth and to compare the morphological and physiological behavior of seedlings under poly-tunnel and open field conditions. The seeds of local cucumber were collected from Nandok village, East Sikkim. The raised bed of 3 m long, 1 m wide and 15 cm height were prepared before constructing the frame structure over it.  The sowing was done on 15th December, 1st January and 15th  January under open condition, 2.0 ft,  2.5 ft  and 3 ft  polytunnels  and altogether twelve treatments were  done with three replications under  CRD.   The highest average temperature range throughout the growing period of cucumber seedlings was recorded in treatment T10 (20-240C) i.e., 15th January sowing in 2.5 ft poly-tunnel.  Temperature played significant role in germination of seed and establishment of seedlings.   The treatment T10 (15th January+2.5 ft  polyhouse) was observed to be best having  germination % (72%),  minimum days needed for transplanting of seedlings  (34),   maximum number of seedlings (25),  maximum height of seedlings  (12.5 cm),  leaf area  (57 cm²),  net photosynthetic rate, transpiration rate and stomatal conductance (26.2 µmol/m²/s, 8.8 mmol/m²/s, 1.13 mmol/m²/s) respectively. The significant difference was observed in polytunnel as compared to control (open field).  The advancement of nearly one month in harvesting  of cucumber is able to fetch higher returns to growers and is beneficial to them.

Local cucumber, Offseason, Polytunnel, Sikkim, Temperature.

Influence of Various Concentrations of Iron on Growth and Corm Yield in Gladiolus cv Malaviya Kiran

Anjana Sisodia, Vandana Sisodia, Anil K. Singh, Sanjula Yadav, Asha Lamsal

Environment and Ecology 42 (4B) : 1967—1971, October—December 2024

Article DOI: https://doi.org/10.60151/envec/SHCU8008

How to cite this paper:

Sisodia, A., Sisodia, V., Singh, A. K., Yadav, S., & Lamsal, A. (2024). Influence of Various Concentrations of Iron on Growth and Corm Yield in Gladiolus cv Malaviya Kiran. Environment and Ecology, 42(4B), 1967–1971. https://doi.org/10.60151/envec/SHCU8008

The present investigation was carried out at Horticulture Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India during 2022-2023.  The experiment was laid out using Randomized Block Design (RBD) with 11 treatments and 4 replications. The different concentrations of FeSO4 treatments used in gladiolus plants were control (distilled water), FeSO4 0.1%, FeSO4 0.2%,  FeSO4 0.3%,  FeSO4 0.4%, FeSO4 0.5%,  FeSO4 0.6%,  FeSO4 0.7%, FeSO4 0.8%, FeSO4 0.9% and FeSO4 1.0%. Foliar application of iron was done at 3rd and 6th leaf stage. Growth characters observed the best results with application of FeSO4 0.3%. Number of plants/hill (2.19),  number of leaves/hill (9.69), leaf length (55.88) and leaf width (2.52 cm) resulted maximum with the treatment of FeSO4 0.3%. Whereas, the longest plant height (59.21 cm) and widest scape width (2.59 cm) was recorded with FeSO4 0.2% and FeSO4 0.6%, respectively. Similarly, yield parameters such as number of corms/hill (2.23), weight of corms/hill (38.49 g) was recorded maximum with the treatment FeSO4 0.3%. While, the maximum number of cormels/hill, weight of cormels/hill and weight of cormels was noted with the treatment of FeSO4 0.2% (14.32 g, 5.87 g and 0.41 g, respectively).

Gladiolus, Ferrous sulfate, Growth, Corm, Cormel, Yield.

Effect of Sulfur and Biofertilizers on Growth Characters and Economics of Fenugreek (Trigonella foenum-graecum L.)

Ashok Kumar Samota, P. C. Chaplot, Narendra Kumar Bhinda, Rajesh Choudhary, Lalchand Kumawat, Manish Tomar, Ruchika Choudhary

Environment and Ecology 42 (4B) : 1972—1975, October—December 2024

Article DOI: https://doi.org/10.60151/envec/GQUS2369

How to cite this paper:

Samota, A. K., Chaplot, P. C., Bhinda, N. K., Choudhary, R., Kumawat, L., Tomar, M., & Choudhary, R. (2024). Effect of Sulfur and Biofertilizers on Growth Characters and Economics of Fenugreek (Trigonella foenum-graecum L.). Environment and Ecology, 42(4B), 1972–1975. https://doi.org/10.60151/envec/GQUS2369

A field experiment was carried out at Rajasthan College  of  Agriculture,  MPUAT,  Udaipur (Rajasthan) to study the effect of sulfur and biofertilizers on growth characters and economics of fenugreek (Trigonella foenum-graecum L.) during the rabi season of 2021-2022. Application of sulfur significantly increases growth characters and net returns and highest obtain in application of 40 kg S ha-1 over application of 30, 20 and 10 kg S ha-1 and seed inoculation with biofertilizers NPK Consortia obtain highest growth characters and net return. The experimental design was used Factorial Randomized Design (FRBD) consisted of 16 treatment combinations i.e. four levels of sulfur (10, 20, 30, 40 kg S ha-1) and four biofertilizers combinations (Control, Rhizobium, Rhizobium + PSB, NPK Consortia) these were replicated thrice.

Sulfur, Biofertilizers, Growth, Fenugreek, Net return.