Agricultural Science Digest – A Research Journal最新文献_第4页

Effect of Irrigation Regimes and Nitrogenous Fertilization on Nitrogen Uptake in Tomato 灌溉和施氮对番茄氮素吸收的影响

Agricultural Science Digest – A Research Journal Pub Date : 2023-09-12 DOI: 10.18805/ag.d-5829

S. Sachin, N.K. Sathyamoorthy, M. Kavitha, K. Boomiraj, G.A. Dheebakaran, V. Geethalakshmi

{"title":"Effect of Irrigation Regimes and Nitrogenous Fertilization on Nitrogen Uptake in Tomato","authors":"S. Sachin, N.K. Sathyamoorthy, M. Kavitha, K. Boomiraj, G.A. Dheebakaran, V. Geethalakshmi","doi":"10.18805/ag.d-5829","DOIUrl":"https://doi.org/10.18805/ag.d-5829","url":null,"abstract":"Background:Nitrogen plays a crucial role in growth cycling and development, thereby influencing the plant growth and productivity. Understanding the interactions between nitrogen uptake with different irrigation and nitrogen fertilizers could provide a valuable insight for optimizing tomato production. Hence, this study aimed to investigate the effect of nitrogen uptake on tomato production under different nitrogen fertilizer and irrigation regimes. Methods:The field experiment was carried out during 2022-2023 in split plot design with two irrigation main plots treatments and five different nitrogen fertilizer subplot treatments. Irrigation treatments consisted of 0.6 and 0.8 IW/CPE ratio and the nitrogen fertilizer treatments comprised of conventional urea, neem coated urea, ammonium sulfate, nano-urea and vermicompost. Result: A higher nitrogen uptake was observed in the treatment combination of 0.6 and 0.8 IW/CPE ratio with vermicompost and nano-urea fertilizer applied treatments. Additionally, optimal irrigation conditions positively influenced nitrogen uptake and subsequent tomato fruit yield. This finding emphasizes the importance of considering nitrogen uptake when determining nitrogen fertilizer rates and irrigation management strategies for tomato production.","PeriodicalId":7599,"journal":{"name":"Agricultural Science Digest – A Research Journal","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135826770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth Parameters of Apple Trees of the Aidared Variety Depending on the Rootstock and the Effect of Long-term Fertilization in Monoculture 单一栽培下Aidared品种苹果树对砧木的生长参数及长期施肥的影响

Agricultural Science Digest – A Research Journal Pub Date : 2023-09-12 DOI: 10.18805/ag.df-547

R.V. Yakovenko, P.G. Kopytko, O.A. Kishchak, A.M. Chaploucky, V.G. Chepurnyi, O.O. Fomenko

{"title":"Growth Parameters of Apple Trees of the Aidared Variety Depending on the Rootstock and the Effect of Long-term Fertilization in Monoculture","authors":"R.V. Yakovenko, P.G. Kopytko, O.A. Kishchak, A.M. Chaploucky, V.G. Chepurnyi, O.O. Fomenko","doi":"10.18805/ag.df-547","DOIUrl":"https://doi.org/10.18805/ag.df-547","url":null,"abstract":"Background: The results of studies of the influence of long-term fertilization on the parameters of growth parameters of apple trees of the Aidared variety on seed and vegetative M.4 rootstocks during repeated cultivation on dark gray podzolic soil were considered. Methods: The research was conducted during 1990-2016 in the apple tree plantation of the Uman National University of Horticulture in an experiment with long-term use of different fertilization systems. Result: It was found that the length of shoot growth of the experimental variety depended on the age periods of growth, rootstock and fertilization options. During the period of growth and fruiting, shoot growth was weak (19.4-22.2 cm) in all variants on both rootstocks due to the impact of soil toxin and difficult weather conditions on the re-grown trees. During the fruiting and growth periods, shoot growth was the largest, while during the fruiting period it decreased again, which was due to an increase in fruit yield and lack of moisture for normal growth of experimental trees. A significant increase in tree crown volume (by 38 %) during the fruiting period was observed on the seed stock compared to the vegetative M.4.","PeriodicalId":7599,"journal":{"name":"Agricultural Science Digest – A Research Journal","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135830545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sugarcane Bagasse and Nano-zeolite based Slow Release Fe Fertiliser Hydrogel: Its Synthesis and Characterization 甘蔗渣纳米沸石缓释铁肥料水凝胶的合成与表征

Agricultural Science Digest – A Research Journal Pub Date : 2023-09-11 DOI: 10.18805/ag.d-5783

C. Bharaani Sri, R. Shanmugasundaram, S. Marimuthu, T. Chitdeshwari, A. Senthil, T. Kalaiselvi

{"title":"Sugarcane Bagasse and Nano-zeolite based Slow Release Fe Fertiliser Hydrogel: Its Synthesis and Characterization","authors":"C. Bharaani Sri, R. Shanmugasundaram, S. Marimuthu, T. Chitdeshwari, A. Senthil, T. Kalaiselvi","doi":"10.18805/ag.d-5783","DOIUrl":"https://doi.org/10.18805/ag.d-5783","url":null,"abstract":"Background: Iron (Fe) is an essential micronutrient that plays numerous vital functions in crop growth and development. This study was carried out to synthesise and characterize sugarcane bagasse and nano-zeolite based slow release Fe fertiliser hydrogel. Methods: At the Tamil Nadu Agricultural University in Coimbatore, a laboratory experiment was carried out to synthesize and characterise a slow release Fe fertiliser (SR Fe) hydrogel encompassing sugarcane bagasse and nano-zeolite. A slow-release Fe fertiliser was successfully created using the graft co-polymerization method. The chemical composition and surface morphology of the synthesised slow-release Fe fertiliser were characterised using scanning electron microscopy (SEM), FTIR, and thermogravimetric analysis (TGA). Result: SEM results show the evenly distributed pore space, and EDX data show that the superabsorbent nanocomposite was successfully loaded with fertiliser Fe. The grafting of acrylate-based monomers onto starch molecules, the incorporation of nano zeolite into the polymeric matrix, and the loading of Fe nutrition into the hydrogel network were all effective, according to the results of the FTIR analysis. The superabsorbent nanocomposite's temperature stability was demonstrated by the TGA research findings. The current study's findings demonstrated that the SR Fe fertiliser was successfully synthesised and may be regarded as the most promising option for slowly delivering nutrients to crops in order to meet their nutrient needs and improve nutrient use efficiency.","PeriodicalId":7599,"journal":{"name":"Agricultural Science Digest – A Research Journal","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135980421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic Analysis of F2 Populations for Quantitative Traits in Blackgram [Vigna mungo (L.) Hepper] 黑穗槐F2群体数量性状的遗传分析玫瑰)

Agricultural Science Digest – A Research Journal Pub Date : 2023-09-05 DOI: 10.18805/ag.d-5804

A. Surendhar, P. Jayamani, K. Iyanar, G. Senthilraja, P. S. Shanmugam

{"title":"Genetic Analysis of F2 Populations for Quantitative Traits in Blackgram [Vigna mungo (L.) Hepper]","authors":"A. Surendhar, P. Jayamani, K. Iyanar, G. Senthilraja, P. S. Shanmugam","doi":"10.18805/ag.d-5804","DOIUrl":"https://doi.org/10.18805/ag.d-5804","url":null,"abstract":"Background: Blackgram is an important pulse crop grown in India. The creation of new variability through hybridization or mutation breeding will produce novel segregants for important yield attributing traits. The selection from the population will be effective if the traits have good genetic variability estimates. Methods: The present investigation was conducted on analysing genetic variability parameters in F2 populations of the blackgram crosses CO 5 × VBN 9 and CO 6 × VBN 11 which were evaluated during rabi, 2022. Results: Based on the coefficient of variations, it was found that sufficient amount of genetic variability and high to moderate heritability with high genetic advance were present in the populations for the traits viz., plant height, number of branches per plant, number of clusters per plant, number of pods per cluster, number of pods per plant and seed yield per plant indicates the presence of additive gene action which can be improved by simple selection in the earlier generations. The positive skewness was observed for the traits viz., number of branches per plant, number of pods per cluster, number of pods per plant, hundred seed weight and seed yield per plant in F2 population of CO 5 × VBN 9 and number of clusters per plant, number of pods per cluster, number of pods per plant and seed yield per plant in the F2 population of CO 6 × VBN 11. The above traits could be improved by intensive selection for rapid improvement. The leptokurtic nature of the distribution for the trait hundred seed weight in CO 5 × VBN 9 population and the traits viz., number of clusters per plant, number of pods per plant, pod length, number of seeds per pod and seed yield per plant in CO 6 × VBN 11 population indicates these traits are controlled by few minor genes. Hence, the good segregants could be selected from these two populations for yield improvement.\u0000","PeriodicalId":7599,"journal":{"name":"Agricultural Science Digest – A Research Journal","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86895432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Different Levels of Sodicity on Soil Enzymes, Soil Microbial Biomass Carbon and Activity of Antioxidant Enzymes in Different Rice Varieties under Semi-arid Conditions 半干旱条件下不同碱度对不同水稻品种土壤酶、微生物量碳和抗氧化酶活性的影响

Agricultural Science Digest – A Research Journal Pub Date : 2023-09-05 DOI: 10.18805/ag.d-5849

M.Surya, M.Baskar, S. Meena, D. Janaki, S. Geethanjali, M. Sundar

{"title":"Effect of Different Levels of Sodicity on Soil Enzymes, Soil Microbial Biomass Carbon and Activity of Antioxidant Enzymes in Different Rice Varieties under Semi-arid Conditions","authors":"M.Surya, M.Baskar, S. Meena, D. Janaki, S. Geethanjali, M. Sundar","doi":"10.18805/ag.d-5849","DOIUrl":"https://doi.org/10.18805/ag.d-5849","url":null,"abstract":"Background: Soil sodicity is a major abiotic stress for crop production in many parts of the world. Soil enzymes have been proposed as potential indicators of soil quality due to their connection to soil biology, ease of measurement and quick responsiveness to changes in soil management. Concerning that how different levels of sodicity affects the activity of soil enzymes, soil MBC and antioxidant enzymes in different rice varieties will promote us to understand the mechanism behind the tolerant varieties and to find out the ways to improve the tolerance mechanism. Methods: A field experiment was conducted at Anbil Dharmalingam Agricultural College and Research Institute, Tiruchirappalli, Tamil Nadu during late samba season. Different rice varieties viz., TRY 1, CO 43, TRY 2, CSR 27, TRY 3 and white ponni (WP) were grown at different levels of Exchangeable Sodium Percentage (ESP) ie., 8, 16, 24, 32, 40 and 48 under field condition. The soil samples were collected at flowering stage and analyzed for urease, alkaline phosphatase (APH), dehydrogenase (DHG) and soil microbial biomass carbon (MBC). The plant samples collected at flowering stage were examined for activity of antioxidant enzymes like catalase (CAT), peroxidase (POX) and superoxide dismutase (SOD). Result: The growth and yield decreases with increasing sodicity levels. The soil enzyme and microbial biomass carbon found to be decreased with increasing ESP levels. The antioxidant enzyme increases with increase in sodicity levels in tolerant varieties and decreases at high ESP levels in susceptible varieties. Overall TRY 3 outperformed under increasing sodicity levels compared to other varieties.\u0000","PeriodicalId":7599,"journal":{"name":"Agricultural Science Digest – A Research Journal","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89714575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applications of Plant Growth Promoting Bacteria (PGPB) and Vesicular Arbuscular Mycorrhizal (VAM) Fungi on Aloe barbadensis Mill., a Medicinally Important Succulent Herb 植物促生菌(PGPB)和水疱丛枝菌根(VAM)真菌在芦荟上的应用。一种重要的药用多肉草本植物

Agricultural Science Digest – A Research Journal Pub Date : 2023-09-05 DOI: 10.18805/ag.d-5811

Shinjan Dey, D. Choudhury, Chandrama Mukherjee, S. Dutta

引用次数: 0

Assesment of Boron in Soil, Plant and Irrigation Water under Cotton-wheat Cropping System of Northern India 印度北部棉麦种植制度下土壤、植物和灌溉水中硼含量评价

Agricultural Science Digest – A Research Journal Pub Date : 2023-09-05 DOI: 10.18805/ag.d-5474

A. K. Boparai, Rupinder Chandel

引用次数: 0

Laboratory Evaluation of Some Botanicals against the Honey Bee Ectoparasitic Mite Varroa Destructor (Acari: Varroidae) and its Impact on Honey Bees (Apis cerana indica) 几种植物药剂对蜜蜂外寄生螨(蜱螨科)的室内防治效果及对蜜蜂的影响

Agricultural Science Digest – A Research Journal Pub Date : 2023-09-04 DOI: 10.18805/ag.d-5791

Megha Vijayan, G. Umapathy, M.R. Srinivasan, D. Uma, M. Kannan, V. Balasubramani

{"title":"Laboratory Evaluation of Some Botanicals against the Honey Bee Ectoparasitic Mite Varroa Destructor (Acari: Varroidae) and its Impact on Honey Bees (Apis cerana indica)","authors":"Megha Vijayan, G. Umapathy, M.R. Srinivasan, D. Uma, M. Kannan, V. Balasubramani","doi":"10.18805/ag.d-5791","DOIUrl":"https://doi.org/10.18805/ag.d-5791","url":null,"abstract":"Background: Honey bees are one of the most important and efficient insect pollinators of food crops on earth providing honey, bee wax, bee pollen, royal jelly, propolis, etc. Varroa destructor is the most obnoxious pest of honey bees infliciting damage to the colony vis-à-vis transmitting viral diseases. The repeated use of synthetic acaricidal treatment results in developing resistance against varroa mite followed by residue hazards in bee products. This leads to an urgent need to develop alternate eco-friendly methods to manage the pest. Methods: The experiment was designed to evaluate the relative efficiency of six botanical extracts viz. Sweet basil (Ocimum basilicum L.), Turmeric (Curcuma longa L.), Coleus (Coleus aromaticus), Sweet flag (Acorus calamus L.), Tulsi (Ocimum sanctum L.) and Goat weed (Ageratun conezoides L.) against Varroa mite (Varroa destructor) under laboratory conditions. After preliminary dose-setting experiments, mites and honeybees were exposed to 2% ethanol extracts of the plants, with 24 hours’ exposure time. Result: 2% concentration of Coleus, Sweet flag and Tulsi registered cent percent mortality of mites within 24 hours after treatment followed by Turmeric (93.33%), Sweet basil (86.67%) and Goat weed (80%). All the extracts exhibited less than 30% mortality of honey bees (Apis cerana indica) whereas turmeric showed the lowest efficiency (14.29%).\u0000","PeriodicalId":7599,"journal":{"name":"Agricultural Science Digest – A Research Journal","volume":"156 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82909479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identifying Diversity of Thrips on Lablab (Lablab purpureus): A Potential Vegetable Crop Lablab (Lablab purpureus)上蓟马的多样性鉴定:一种潜在的蔬菜作物

Agricultural Science Digest – A Research Journal Pub Date : 2023-09-01 DOI: 10.18805/ag.d-5832

Aishwarya Palanisamy, M. Marimuthu, C. Narayanasamy, Balasubramani Venkatasamy, Karthikeyan Gandhi, Pugalendhi Lakshmanan

{"title":"Identifying Diversity of Thrips on Lablab (Lablab purpureus): A Potential Vegetable Crop","authors":"Aishwarya Palanisamy, M. Marimuthu, C. Narayanasamy, Balasubramani Venkatasamy, Karthikeyan Gandhi, Pugalendhi Lakshmanan","doi":"10.18805/ag.d-5832","DOIUrl":"https://doi.org/10.18805/ag.d-5832","url":null,"abstract":"Background: Lablab (Lablab purpureus) is a potential vegetable crop cultivated throughout India. It is a tropical and subtropical vegetable adaptive to different climatic conditions and grown in all seasons. Thrips are one of the important pests of lablab as they affect all stages of the crop and transmit plant viruses. The current study aimed at identifying the thrips diversity present in lablab as a base for monitoring and management purposes. Methods: An exploratory survey was conducted to identify the diversity of thrips on lablab in its growing areas of Coimbatore. Furthermore, continuous monitoring of the lablab crops in TNAU orchard, Coimbatore, was done to explore all the life stages of thrips species and their diversity. Morphological and molecular characterization of the collected species was done using taxonomic keys and mtCOI DNA sequencing approach. Result: Thrips palmi and Thrips tabaci were observed during the crop’s early stages before blossoming. Frankliniella schultzei is a polyphagous pest species that has been found infesting all phases of crop development, from early leaf through pod formation. During and after blooming, the four species Megalurothrips usitatus, Thrips parvispinus, Chaetanaphothrips orchidii and Haplothrips gowdeyi began to infest. Shannon and Simpson diversity indices were determined to be -1.739 and -0.1979. According to Shannon index, C. orchidii and T. parvispinus were the first and second predominant species after flowering. Taxonomic investigations of the collected species were done and substantiated with molecular identification of those analyzed species. A phylogenetic tree of the analyzed sequences was constructed to denote species divergence based on their specific sequences.","PeriodicalId":7599,"journal":{"name":"Agricultural Science Digest – A Research Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78786554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding the Genetic Variability for Growth and Leaf Yield of Coriander (Coriandrum sativum L.) 芫荽生长和叶片产量遗传变异的研究

Agricultural Science Digest – A Research Journal Pub Date : 2023-08-28 DOI: 10.18805/ag.d-5817

R. Chandrakala, K. Venkatesan, B. Selvi, N. Senthil, G. Karthikeyan

{"title":"Understanding the Genetic Variability for Growth and Leaf Yield of Coriander (Coriandrum sativum L.)","authors":"R. Chandrakala, K. Venkatesan, B. Selvi, N. Senthil, G. Karthikeyan","doi":"10.18805/ag.d-5817","DOIUrl":"https://doi.org/10.18805/ag.d-5817","url":null,"abstract":"Background: Coriander (Coriandrum sativum L.) is a popular herbaceous annual seed spice crop. It is mainly grown for seed as well as green leaf, the leaf and seed yield is varied with the genetic background of genotypes. Therefore, the selection of genotypes with high leaf yield is highly desired, along with the magnitude of heritability and genetic advance for wider adaptation and cultivation. In this view, the accessions were collected and their genetic variables were assessed. Methods: The experimental material included 48 coriander accessions along with two check varieties CO4 and CO5. The plant materials were obtained from the coriander germplasm repository at the Department of Spices and Plantation Crops, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore, India. The experiment was laid out in Randomised Block Design with two replications. Results: The results of the analysis of variance revealed significant differences among the accessions. High heritability coupled with high GAM was observed for the economical trait (87% and 48.93% for leaf yield) indicating that, the traits were highly heritable in nature, hence selection breeding is most effective. The PCV and GCV were moderate to high for all traits except the number of days for harvest and moisture content among all the accessions of coriander. The leaf yield was highly significant, and positively correlated with all the traits except the number of days for harvest and leaf protein. The genotypic correlation was greater than the phenotypic correlation among the genotypes. Therefore, to increase the seed yield of coriander accessions, either simple selection or mass selection of desirable traits and their associated traits would be effective.\u0000","PeriodicalId":7599,"journal":{"name":"Agricultural Science Digest – A Research Journal","volume":"148 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79356018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0