نتایج جستجو برای: days from sowing to maturity 34

تعداد نتایج: 11820541  

2000
Paula A. Harrison John R. Porter Thomas E. Downing

A method was developed for scaling-up the AFRCWHEAT2 model of phenological development from the site to the continental scale. Four issues were addressed in this methodology: (i) the estimation of daily climatic data from monthly values, (ii) the estimation of spatially variable sowing dates, (iii) the simulation of multiple cultivars, and (iv) the validation of broad-scale models. Three method...

Journal: :Agronomy 2021

Soybean (Glycine max (L.) Merr.) may contribute to the agro-ecological transition of cropping systems in Europe, but its productivity is severely affected by summer drought. New drought-avoidance strategies, such as early sowing, require cultivars with high plant growth under suboptimal conditions. This study aims at phenotyping early-stage root and shoot traits 10 commonly grown Europe. Cultiv...

بیات, مهدی , ربیعی, بابک , ربیعی, محمد , مومنی, علی ,

To study relationship between grain yield and important agronomic traits of rapeseed in paddy fields as second culture, fourteen varieties of spring rapeseed were grown in a randomized complete block design of experiment with three replications at Rice Research Institute of Iran, Rasht, during 2005-2006. Analysis of variance showed that there were significant differences between varieties for m...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1389

this study investigates the strategies native english and persian speakers employ for expressing gratitude in different situations. the strategies of persian efl learners are also compared with english strategies in order to find the differences that may exist between these two languages. social status and size of imposition of the favor are social variables which are investigated in detail for...

Journal: :Journal of animal science 1976
R E Nelson O W Robison

A group of 98 dams weaned 588 female mice to be mated and allowed to reproduce. These females were assigned at birth to be reared in a litter of eight or 14 mice. Such litters were intended to represent postnatal environments equivalent to small and large litters. However, average litter size was approximately 15 mice in this line and comparisons were more correctly those between small and aver...

Journal: :Agronomy 2022

A two-year experiment was conducted to determine the optimal combinations of sowing date and variety maturity using four broomcorn millet (Panicum miliaceum L.) varieties. The results showed that dates had significant effects on leaf net photosynthesis (Pn) chlorophyll fluorescence multivariate analysis variety, date, measuring stage their interactions were in both sites. days from seeding stro...

Journal: :پژوهش های تولید گیاهی 0
حمید عباس دخت محمد عارف بیکی

in order to study of hydropriming, planting depth and nitrogen split application effect on yield and yield components of double cross hybrid of corn, an experiment was carried out as factorial based on randomized complete block design (rcbd) with four replications. nitrogen split application included (400 kg/ha at sowing date, 100 kg/ha at sowing date and 300 kg/ha 25 to 50 days after sowing da...

Journal: :Remote Sensing 2014
Hao Yang Zengyuan Li Erxue Chen Chunjiang Zhao Guijun Yang Raffaele Casa Stefano Pignatti Qi Feng

Spatial monitoring of the sowing date plays an important role in crop yield estimation at the regional scale. The feasibility of using polarimetric synthetic aperture radar (SAR) data for early season monitoring of the sowing dates of oilseed rape (Brassica napus L.) fields is explored in this paper. Polarimetric SAR responses of six parameters, relying on polarization decomposition methods, we...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده کشاورزی و منابع طبیعی 1392

the aim of the present study was to determine the in?uence of presence or absence of corpus luteum (cl) on hormonal and metabolites composition of follicular ?uid (ff) harvested from different sized follicles and its relationship with blood serum concentrations in sanjabi ewes. ovaries and blood samples were collected from 60 clinically healthy adult ewes (sanjabi breed) 1–3 years of age in dio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...

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