نتایج جستجو برای: cotton emergence

تعداد نتایج: 114012  

2004
Chandra K. Reddy

Triticum spp.), corn (Zea mays L.), and soybean [Glycine max (L.) Merr.], which generally have had success Although use of no-tillage in cotton (Gossypium hirsutum L.) pro with no-tillage. Cotton does not produce enough residuction in the southeast USA has dramatically increased recently, dues to supply the C necessary to increase soil organic reports of reduced seedling emergence, poor plant e...

Journal: :Phytopathology 2007
Charles R Howell

ABSTRACT Good quality seeds of cotton cultivars often escaped pre-emergence damping-off incited by Pythium spp. and Rhizopus oryzae, and they were resistant to postemergence damping-off incited by Rhizoctonia solani. Poor quality seeds, however, were highly susceptible to both phases of seedling disease and required seed treatment in order to survive. Pre-emergence damping-off incited by Pythiu...

Journal: :Journal of nematology 1993
S H Thomas D W Smith

Field trials were conducted during 1990 to evaluate the effects of preplant soil fumigation with 1,3-dichloropropene (1,3-D) on yield and fiber quality of furrow-irrigated cotton cultivars subjected to high population densities of Meloidogyne incognita. We measured the responses of eight upland cotton cultivars with different levels of root-knot nematode resistance and compared the responses of...

Journal: :International Journal of Current Microbiology and Applied Sciences 2018

Journal: :Physical review 2021

Recently, it has been claimed by J. Harada [Phys. Rev. D 103, L121502 (2021) that the Cotton tensor can describe effects of gravity beyond general relativity. In this short comment, we show is already present in Moreover, Harada's proposal equivalent to relativity concerning equation motion both for sources and trace-free part curvature. essence, what remains completely free theory are field eq...

Journal: :پژوهش های زراعی ایران 0
حسن براتی محمودی مجید جامی الاحمدی محمدحسن راشد محصل سهراب محمودی نرگس شیخ زاده محمد آبادی

in order to study the effects of mechanical and chemical methods of weed control and their interaction on cotton (cv. varamin) an experiment was conducted in agricultural research field, the university of birjand during 2008 growing season using a randomize complete block design with 12 treatments and 4 replications. treatments were: trefelan (trifluralin 48% ec) 960cc ai ha-1 (pre-plant), sona...

K. Raja Reddy, S.B. Lokhande

Nutrient (N) stress affects cotton growth, primary physiological processes andfiber properties. This study utilized two sunlit growth chambers to compare cotton(cv. TM-1) responses to two levels of N nutrition imposed at the onset of floweringstage of development, 100 and 0% of optimum N, in plants grown under otherwiseoptimal temperature and soil moisture conditions. Flowers and bolls were tag...

2013
Steffen Hagenbucher Jörg Romeis

Introduction Cotton plants from the genus Gossypium are well defended against arthropod herbivores by a broad range of resistance mechanisms. These include direct mechanisms like trichomes and the production of toxins and indirect mechanisms like the emission of volatiles or extra-floral nectaries to attract and retain natural enemies1. One of the best understood resistance trait of cotton is t...

2017
Guillaume Tetreau Ran Wang Ping Wang

Development of resistance to the insecticidal toxins from Bacillus thuringiensis (Bt) in insects is the major threat to the continued success of transgenic Bt crops in agriculture. The fitness of Bt-resistant insects on Bt and non-Bt plants is a key parameter that determines the development of Bt resistance in insect populations. In this study, a comprehensive analysis of the fitness of Bt-resi...

2015
Mohamed Saleh

The “staples thesis” argues that institutions in a given region could be explained by the nature of production of its prevailing staples, whereby slavery is likely to emerge in “slave-conducive” crops, such as cotton, rice, and sugarcane. This paper evaluates the thesis using a unique natural experiment from nineteenth-century rural Egypt, the cotton boom that occurred because of the American C...

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