نتایج جستجو برای: boll opening

تعداد نتایج: 50253  

Journal: :پژوهش آب در کشاورزی 0
محسن دهقانی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان. مجید جعفرآقایی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان اصفهان. سید حسن طباطبایی دانشیار گروه مهندسی آب دانشگاه شهرکرد.

due to limited water resources, applying efficient water use in agriculture is very important. this experiment was carried out in kabootarabad agricultural research station for two years using split plots in a randomized complete block design with four replications. six irrigation treatments based on evaporation from class a pan were applied as the main factor at three cotton growing stages, na...

In order to evaluate of distinctness, uniformity and stability (DUS) of morphological traits, three new genotypes of cotton (GT40, TBL60 and SKT134) were tested using a complete randomized blocks design with 4 replications. In general, 39 quantitative and qualitative morphological characteristics were measured. Results showed quantitative morphological characteristics including number of stem n...

Journal: :پژوهش های تولید گیاهی 0

in order to determine the best time of cotton irrigation in east of mazandaran province, an experiment, conducted for 3 successive years in agricultural research station of baykola. six treatments and four replications were carried out with randomized complete block designs for sahel variety. water treatments were carried out based on, i0: no irrigation, i1: once irrigation in boll opening stag...

Journal: :Agriculture 2021

Year to year change in weather poses serious threats agriculture globally, especially developing countries. Global climate models simulate an increase global temperature between 2.9 5.5 °C till 2060, and crop production is highly vulnerable warming trends. Extreme causes a significant reduction yields by negatively regulating the phenology. Therefore, evaluate impact on cotton (Gossypium hirsut...

Journal: :به زراعی کشاورزی 0
علی نادری عارفی محقق بخش اصلاح و تهیه نهال و بذر، مرکز تحقیقات کشاورزی استان سمنان، ایستگاه گرمسار، گرمسار ـ ایران محمد عابدینی اسفهلانی عضو هیأت علمی بخش اصلاح و تهیة نهال و بذر، مرکز تحقیقات کشاورزی استان سمنان، شاهرود ـ ایران

to determine the best planting date and irrigation schedule in a cotton field (gossypium hirsutum var.varamin) in garmsar region an experiment was conducted in 2011. the experimental design was splitplot based on randomized complete block with three replications. three irrigation termination dates (2011sep 11th, 2011 sep 21st and 2011 oct 2nd) arranged in main plots as main factor and three pla...

2017
Xiaosen Wang Zhong Deng Wenzheng Zhang Zhaojiang Meng Xiao Chang Mouchao Lv

In this study, a soil culture experiment was set up in barrels to investigate the effect of waterlogging duration at different growth stages on the growth, yield, and quality of cotton in the Huang-Huai Region of China during summer. The experiment was conducted at four growth stages of cotton (seedling, squaring, flowering, and boll opening), and the waterlogging duration at each stage was set...

جعفرآقایی, مجید, جلالی, امیرهوشنگ,

To investigate the effect of different irrigation levels on yield and yield components of two cotton cultivar, a two-year experiment (2006-2007) was carried out at Agricultural Research Center of Kabotarabad, Isfahan, Iran. In this experiment, the strip split-plot design, as randomized complete blocks with four replications, was used. Main plots consisted of six levels of irrigation (T1 to T6, ...

2014
Mingwei Du Yi Li Xiaoli Tian Liusheng Duan Mingcai Zhang Weiming Tan Dongyong Xu Zhaohu Li

Defoliants can increase machine harvest efficiency of cotton (Gossypium hirusutum L.), prevent lodging and reduce the time from defoliation to harvest. Coronatine (COR) is a chlorosis-inducing non-host-specific phytotoxin that induces leaf and/or fruit abscission in some crops. The present study investigates how COR might induce cotton leaf abscission by modulating genes involved in cell wall h...

2005
L. S. Lee M. A. Klich

Aflatoxin assays and moisture determinations were made on locks from bolls inoculated with Aspergillus flavus 30-32 days from flower and harvested after additional periods of 5, 7, 9, 11, 13 and 15 days. Inoculated locks were always tight but had moisture contents comparable to those in noninoculated locks on the same bolls. Lowest toxin concentrations were in seeds from bolls still green at ha...

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