Crop research最新文献_第5页

Effect of different establishment methods and weed management strategies in rice (Oryza sativa) under Cauvery delta zone of Tamil Nadu 泰米尔纳德邦Cauvery三角洲地区水稻不同种植方法及杂草管理策略的效果

Crop research Pub Date : 2023-03-26 DOI: 10.31830/2454-1761.2023.cr-837

M. Bhagavathi, G. Baradhan, S. S. Kumar, M. Ajithkumar

{"title":" Effect of different establishment methods and weed management strategies in rice (Oryza sativa) under Cauvery delta zone of Tamil Nadu ","authors":"M. Bhagavathi, G. Baradhan, S. S. Kumar, M. Ajithkumar","doi":"10.31830/2454-1761.2023.cr-837","DOIUrl":"https://doi.org/10.31830/2454-1761.2023.cr-837","url":null,"abstract":"Higher demand, cost of labour and low availability of water have forced the farmers to look for an alternative method of rice cultivation as a substitute to the existing conventional method of transplanting. Direct method of rice cultivation is better alternative over transplanting method. This is not only laboursaving method, but also results in significant water saving method in rice cultivation. However, the direct method of rice cultivation confronts with severe weed infestation in initial stage of crop growth and yield losses if weeds are not managed well. Therefore, this research work was conducted to study the establishment percentage and weeds of rice under different rice establishment methods and weed management practices during kuruvai seasons of 2019-20 and 2020-21 with five main plots as establishment methods and six weed management practices as sub-plots in split-plot design on clay loam soil. The results demonstrated highest establishment percentage, WCE% and lesser weeds population obtained under SRI method of rice transplanting. All the herbicides reduced the weed population significantly as compared to weedy check. Pretilachlor 6% GR + bensulfuron methyl 0.6% (PE) and bispyribac sodium 10% SC (POE) reduced the weed population. Maximum reduction in yield due to weeds served in weedy check plot and lowest was recorded in PE followed by POE herbicidal application plot. Application of PE pretilachlor+bensulfuron methyl 0.6% @ 10 kg/ha under SRI method of transplanting resulted in highest average weed control efficiency.\u0000","PeriodicalId":10786,"journal":{"name":"Crop research","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76104845","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

Optimizing fertilizer schedules for irrigated chickpea (Cicer arietinum L.) under scarce rainfall zone of Andhra Pradesh 安得拉邦少雨区鹰嘴豆灌溉施肥优化

Crop research Pub Date : 2023-03-26 DOI: 10.31830/2454-1761.2023.809

K. Bhanusri, M. Reddy, U. B. Reddy, P. Kavitha

{"title":"Optimizing fertilizer schedules for irrigated chickpea (Cicer arietinum L.) under scarce rainfall zone of Andhra Pradesh ","authors":"K. Bhanusri, M. Reddy, U. B. Reddy, P. Kavitha","doi":"10.31830/2454-1761.2023.809","DOIUrl":"https://doi.org/10.31830/2454-1761.2023.809","url":null,"abstract":"Conventionally chickpea is cultivated as rainfed crop but under irrigated conditions the optimum dose of fertilizers was not known and the research was also limited. The purpose of this study was to study the optimum dose of fertilizers for chickpea under irrigated conditions. A field experiment was conducted to study the growth and yield of chickpea under varied levels of fertilizer application on sandy loam soils at Agricultural College, Mahanandi during rabi 2021-22. The experimental field was laid out in a randomized block design with 10 treatments and replicated thrice. Nitrogen and phosphorus were applied through urea and single super phosphate, respectively, to all the plots. The results revealed that significantly higher and comparable values of plant height (44.0 cm), number of branches/plant (28.7), number of pods/plant (63.4), 100-seed weight (32.4 g), seed yield (1346.1 kg/ha), gross returns (71344.7 Rs./ha), net returns (43187.7 Rs./ha) and B : C ratio (2.5) were registered with treatment 20 kg N basal+20 kg N split+60 kg P2O5 basal (T9) and higher dry matter accumulation (7168.5 kg/ha) and haulm yield (1352.0 kg/ha) with 20 kg N basal+20 kg N split+70 kg P2O5 basal (T10). Number of seeds/pod and harvest index were not significantly affected by levels of fertilizer application.\u0000","PeriodicalId":10786,"journal":{"name":"Crop research","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89514220","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

Orientation response of Cotesia plutellae Kurdjumov (Hymenoptera : Braconidae) towards nineteen straight-chain hydrocarbons 膜翅目:小蜂科小蜂对19种直链烃的取向反应

Crop research Pub Date : 2022-11-21 DOI: 10.31830/2454-1761.2022.cr-896

Eshita Gupta, Pratyay Vaibhav, Archna Kumar

引用次数: 0

Role of trichomes in plant defence – A crop specific review 毛状体在植物防御中的作用-作物特异性综述

Crop research Pub Date : 2022-11-18 DOI: 10.31830/2454-1761.2022.895

Debarati Nandi, A. Chakraborty, Tufleuddin Biswas, Durgadatta Meher, A. Singh

{"title":"Role of trichomes in plant defence – A crop specific review ","authors":"Debarati Nandi, A. Chakraborty, Tufleuddin Biswas, Durgadatta Meher, A. Singh","doi":"10.31830/2454-1761.2022.895","DOIUrl":"https://doi.org/10.31830/2454-1761.2022.895","url":null,"abstract":"Trichomes have long been investigated as an initial line of defence against insect herbivores. The structure, categorization and diversity of trichomes in flowering plants, as well as their mechanisms of action against abiotic and biotic stresses, are discussed. Plant-herbivore interactions are complicated interactions involving intricate networks of chemicals, signals and tactics to overcome each other's defences. To gain nutrients from host plants, herbivores employ a variety of feeding techniques. Plants respond by activating several defence mechanisms. Context of this review is based over the research on herbivore-trichome interactions and how trichomes are involved in both direct and indirect plant defences. Importance of trichome exudates like terpenes, acyl sugars, phenyl propanoid derivatives, methyl ketones, flavonoids and defensive proteins have been discussed. In our study, we emphasized on the relevance of trichomes as a reliable indicator of plant defence and how it is involved in defence responses of some economically important crops. Finally, we suggest several promising new study avenues for future work on trichomes and trichome-mediated responses.","PeriodicalId":10786,"journal":{"name":"Crop research","volume":"03 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88297344","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: 1

Screening of different pearl millet (Pennisetum glaucum) genotype against blast disease of pearl millet caused by Pyricularia grisea (Cooke) Sacc. 不同珍珠粟(Pennisetum glaucum)基因型抗稻瘟病的筛选

Crop research Pub Date : 2022-11-18 DOI: 10.31830/2454-1761.2022.cr-893

Mukesh Kumar, Dama Ram, V. Khandelwal, A. Choudhary, M. Saran, A. Yadav

{"title":"Screening of different pearl millet (Pennisetum glaucum) genotype against blast disease of pearl millet caused by Pyricularia grisea (Cooke) Sacc.","authors":"Mukesh Kumar, Dama Ram, V. Khandelwal, A. Choudhary, M. Saran, A. Yadav","doi":"10.31830/2454-1761.2022.cr-893","DOIUrl":"https://doi.org/10.31830/2454-1761.2022.cr-893","url":null,"abstract":"The utilization of resistant varieties is a classical approach to prevent the catastrophic losses caused by pearl millet blast with reduction in the cost of production and increased yield. Therefore, a study was conducted during the kharif 2020 at collage farm, College of Agriculture, Jodhpur to identify resistance sources against blast disease in pearl millet crop. Thirty-one pearl millet hybrids along with one susceptible check were screened against blast disease caused by Pyricularia grisea under field condition. Among them 24 hybrids showed 12-33% disease severity with disease rating scale 2-3 were considered moderately resistant. Four hybrids showed 34-55% disease severity and disease rating scale 4-5 were considered moderately susceptible. Three hybrids showed 56-77% disease severity with disease rating scale 6-7 and therefore were considered susceptible and one hybrid showed greater than 78% disease severity with disease rating scale 8-9 was considered highly susceptible. None of the cultivars showed highly resistant and resistant reaction under field condition.\u0000","PeriodicalId":10786,"journal":{"name":"Crop research","volume":"115 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79601389","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

Evaluating the efficacy of isolated bacterial strain on the biodegradation of polystyrene (thermocol) 分离菌株生物降解聚苯乙烯(thermocol)的效果评价

Crop research Pub Date : 2022-11-18 DOI: 10.31830/2454-1761.2022.cr-894

M. Jamunasri, L. M., R. Issac

引用次数: 0

Role of soybean (Glycine max) on the fruiting enhancement of chilli (Capsicum annuum) under intercropping system 大豆(Glycine max)对间作辣椒(Capsicum annuum)增结实的作用

Crop research Pub Date : 2022-11-17 DOI: 10.31830/2454-1761.2022.cr-888

B. ., I. Kumari, N. Salaria, A. Devi

{"title":"Role of soybean (Glycine max) on the fruiting enhancement of chilli (Capsicum annuum) under intercropping system","authors":"B. ., I. Kumari, N. Salaria, A. Devi","doi":"10.31830/2454-1761.2022.cr-888","DOIUrl":"https://doi.org/10.31830/2454-1761.2022.cr-888","url":null,"abstract":" Intercropping is an agricultural approach in which two or more crop species, cohabit for a period of time. Intercropping is viewed as a sustainable, environmentally friendly and profitable cropping strategy by its proponents. The field work was carried out in the agricultural land of Arni University, Distt. Kangra of Himachal Pradesh during the months of June-August 2021. The main objective of present study was to make people aware about intercropping system so that they can adopt these agricultural practices and apply them for good crop production. In the current study, intercropping leguminous plant Glycine max was grown with non-leguminous vegetable crop Capsicum annuum in order to achieve higher productivity of non-leguminous crop plants. Different morphological parameters including plant height, leaf length, number of leaves, leaf breadth and fruit size were measured and recorded weekly. Findings of present investigation indicated that plant height (46.89±0.01 cm), leaf length (7.56±0.06 cm), leaf number (33.66±0.33 cm), leaf breadth (4.47±0.03 cm) and fruit size were significantly increased and it ensured that the leguminous crop soybean (Glycine max) had a favourable impact on non-leguminous vegetable crop (Capsicum annuum) production. Future explore in this field may help farmers in order to improve yield stability and to minimize risk of crop failure.\u0000","PeriodicalId":10786,"journal":{"name":"Crop research","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88483800","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

Agro-morphological characterization of bottle gourd [Lagenaria siceraria (Mol.) Standl.] germplasms in Garo Meghalaya hills, 葫芦的农业形态特征[Lagenaria siceraria (Mol.) Standl]。在加罗·梅加拉亚邦山上发现的

Crop research Pub Date : 2022-11-17 DOI: 10.31830/2454-1761.2022.cr-886

S. Chakraborty, A. K. Chaurasiya

引用次数: 0

Genetic diversity, correlation and path co-efficient for yield and yield associated traits in rice (Oryza sativa) 水稻产量及相关性状的遗传多样性、相关及通径系数

Crop research Pub Date : 2022-11-17 DOI: 10.31830/2454-1761.2022.890

M. Balasubramanian, S. Vennila

{"title":"Genetic diversity, correlation and path co-efficient for yield and yield associated traits in rice (Oryza sativa) ","authors":"M. Balasubramanian, S. Vennila","doi":"10.31830/2454-1761.2022.890","DOIUrl":"https://doi.org/10.31830/2454-1761.2022.890","url":null,"abstract":"The present investigation was conducted to assess the high grain yielding varieties and their related traits for evolving better genotypes for further breeding programme. Twenty-five rice genotypes were collected from different geographical regions of Tamil Nadu to discern the extent of divergence, variability and character association. The analysis of variance exposed the presence of significant differences among all the genotypes for eight characters studied and indicated the occurrence of considerable amount of deviation in the genotypes. In D2 analysis, 25 rice genotypes were grouped into six clusters. The maximum intra-cluster distance was registered in cluster III (31.88). The maximum inter-cluster distance was found between cluster II and cluster IV (144.96). IR 64, PMK 3 and CO 51 were the potential donors and could be used as a parent as they possessed high per se for yield and majority of its attributes. Number of grains/panicle, 1000-grain weight, plant height, days to 50% flowering and grain yield/plant were the major contributors towards the total genetic divergence among the traits studied. The genetic correlation revealed that number of tillers/plant and panicle length showed positive and significant association with respect to number of productive tillers/plant and number of grains/panicle at both genotypic and phenotypic levels. So, it may be inferred that selection and manoeuvring of anyone of the traits viz., number of productive tillers/plant and panicle length were likely to improve grain yield/plant. Path analysis indicated that number of productive tillers/plant, 1000-grain weight and number of grains/panicle exerted maximum positive direct and all identified genotypes with their resulted traits would be obliging to progress or deploy for further breeding programme.\u0000","PeriodicalId":10786,"journal":{"name":"Crop research","volume":"60 sp1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72608260","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

Futuristic scope of weed suppressing butterflies in coastal agricultural ecosystem 沿海农业生态系统杂草抑制蝴蝶的未来前景

Crop research Pub Date : 2022-11-17 DOI: 10.31830/2454-1761.2022.891

C. Kathirvelu, L. Gopianand, S. M. SURESHKUMAR1, G. Baradhan

{"title":"Futuristic scope of weed suppressing butterflies in coastal agricultural ecosystem ","authors":"C. Kathirvelu, L. Gopianand, S. M. SURESHKUMAR1, G. Baradhan","doi":"10.31830/2454-1761.2022.891","DOIUrl":"https://doi.org/10.31830/2454-1761.2022.891","url":null,"abstract":" Butterflies are among the most attractive and colourful organisms on the planet, with a high aesthetic value. These are bio-indicators of the environment and ecosystem. The adults of butterflies are pollinating many plant species and their young ones (larva) feed on crop plants and weeds. The presence of weed-eating butterflies in agro-ecosystems has made a significant contribution to natural weed suppression thereby reducing the consumption of herbicides. In this context, an attempt was made to survey for butterflies in the coastal agro-ecosystem of selected localities in Cuddalore district, Tamil Nadu during winter season 2021-22. Butterflies survey was done twice a month in the study area and the larval weed host plants were also documented. The results of the study showed that a total of 188 weed suppressing butterflies which comprised six species and five genera were observed from the study area under the families Pieridae, Nymphalidae, Lycaenidae and Hesperiidae of the Order Lepidoptera. Among the species of weed suppressing butterflies, Hypolimnas misippus was found maximum in the survey followed by H. bolina of Nymphalidae family. The important weed hosts found in the study area were Cleome viscosa, Portulaca oleracea, Abutilon indicum, Corchorus depressus, Achyranthes aspera and Amaranthus viridis. The diversity of weed suppressing butterflies in the study area of coastal district offers a possible exploitation and scope in weed management in agro-ecosystems naturally.\u0000","PeriodicalId":10786,"journal":{"name":"Crop research","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80059971","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