نتایج جستجو برای: land under cotton cultivation

تعداد نتایج: 1197765  

Journal: :World journal of microbiology & biotechnology 2012
Xiangbi Chen Yirong Su Xunyang He Yawei Wei Wenxue Wei Jinshui Wu

Soil microorganisms play vital roles in recovering and maintaining the health of ecosystems, particularly in fragile Karst ecosystems that are easily degraded after cultivation. We investigated the composition and diversity of soil bacterial communities, based on RFLP and 16S rDNA sequencing, in a cropland, a naturally revegetated land with former cultivation disturbance and a primeval forest i...

رمضانی مقدم, محمد رضا, مهرآبادی, حمید رضا , نظامی, احمد , کافی , محمد,

Determining environment – associated alterations in grain yield is important in yield assessment under drought stress. Therefore this study was carried out to determine the correlation coefficients and direct and indirect effects of effective components on yield in four drought - tolerant and susceptible cotton cultivars. Cotton cultivars were considered as sub plots and 3 levels of irrigation ...

2011
Muhammad Nouman Tahir Imran Amin Rob W. Briddon Shahid Mansoor

Cotton leaf curl disease (CLCuD) is a severe disease of cotton that occurs in Africa and Pakistan/northwestern India. The disease is caused by begomoviruses in association with specific betasatellites that differ between Africa and Asia. During survey of symptomatic cotton in Sindh (southern Pakistan) Cotton leaf curl Gezira virus (CLCuGV), the begomovirus associated with CLCuD in Africa, was i...

2012
Ronald J Herring N Chandrasekhara Rao

Given that the controversy over success and failure of Bt technology still exists, this paper discusses the available field studies that have addressed agro-economic questions of Bt cotton cultivation in India. Since a meta-analysis of studies can give only partial conclusions, owing to differences across study methodologies and coverage, this paper takes a different strategy, i e, looking not ...

Journal: :International Journal of Current Microbiology and Applied Sciences 2017

Journal: :The Science of the total environment 2014
Jill L Edmondson Zoe G Davies Sarah A McCormack Kevin J Gaston Jonathan R Leake

Soil is the vital foundation of terrestrial ecosystems storing water, nutrients, and almost three-quarters of the organic carbon stocks of the Earth's biomes. Soil organic carbon (SOC) stocks vary with land-cover and land-use change, with significant losses occurring through disturbance and cultivation. Although urbanisation is a growing contributor to land-use change globally, the effects of u...

Currently, water, as the most limiting factor in production, determines the priority of planting in different areas of Iran. Saffron is one of the good candidates for drought conditions since it has high economic value and low water requirements that can help with sustainable development. By identifying the factors influencing the decision on saffron cultivation and its expansion, appropriate p...

Journal: :E3S web of conferences 2023

One of the primary crops grown in Republic Uzbekistan is cotton. Root rot and gommosis, two cotton sprout diseases, seriously harm cultivation. Some illnesses were shown to have significantly increased some years. Cotton seeds coated with fungicides are sowed Uzbekistan. Yet, outbreaks root blight frequently seen under production-related circumstances. The gums that protrude from surface plant'...

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