نتایج جستجو برای: spike per unit area

تعداد نتایج: 1321917  

Journal: :Journal of environmental biology 2007
Dorin Gupta R K Mittal Anil Kant Mohar Singh

Correlation coefficient analysis conducted on 22 triticale x bread wheat derivatives along with six checks to select true- breeding derivative(s) for future hybridization programme with tolerance to drought and cold stress conditions as well as better quality traits revealed significant correlation of grain yield with spikelets per spike, biological yield, harvest index, leaf area index. Intere...

Journal: :پژوهش های زراعی ایران 0
معصومه حاجی پور علی راحمی کاریزکی حسین صبوری حسین علی فلاحی

introduction barely (hordeum vulgare) is the fourth most important cereal after wheat, corn and rice. regarding the role of breeding to increase barley grain yield a large number of studies have been done in different countries. however, a few studies have been performed across golestan province, in iran. therefore, this study was conducted to know what barley traits have changed with grain yie...

2014
Jaideep Singh

The factor σ is called the interaction cross section and has units of area. It is the probability of a single interaction per unit target point density per unit target region length. A cross section is useful because it isolates the part of the interaction probability that is due to the mechanism of the interaction. An equivalent definition of cross section is the probability of interaction per...

Journal: :journal of agricultural science and technology 0
a. barati department of plant breeding and biotechnology, faculty of agriculture, university of tabriz, islamic republic of iran. m. moghaddam department of plant breeding and biotechnology, faculty of agriculture, university of tabriz, islamic republic of iran. s. a. mohammadi department of plant breeding and biotechnology, faculty of agriculture, university of tabriz, islamic republic of iran. h. a. qhazvini seed and plant improvement institute, agricultural research, education and extension organization (areeo), karaj, iran. b. sadeghzadeh dryland agricultural research institute, agricultural research, education and extension organization (areeo), maragheh, iran.

salinity tolerance is a genetically and physiologically complex trait, controlled by quantitative trait loci (qtls). in order to map the qtls associated with agronomic and physiological traits, 149 doubled haploid lines derived from a cross between clipper (salt susceptible) and sahara 3771 (salt tolerant) barley genotypes were evaluated under natural saline-stress and non-stress conditions usi...

Journal: :کشاورزی (منتشر نمی شود) 0
غلام عباس اکبری استادیار گروه زراعت و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت عبداله قاسمی پیربلوطی مربی گروه زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی واحد شهرکرد، چهارمحال و بختیاری غلام علی اکبری استادیار گروه زراعت و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت ایرج اله دادی استادیار گروه زراعت و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت

to determine the effect of n-fertilizer on nitrogen harvest index (nhi), crop production and growth indices of corn (s.c.704 cultivar), an experiment was conducted with five nitrogen rates (100, 140, 180, 220 and 260 kg n/ha) in a randomly complete block design in four replicates. the effect of n-fertilizer rates on variation of grain yield, number of kernels, 1000-kernel weight, nitrogen harve...

Journal: :تولید گیاهان زراعی 0

understanding the variation of kernel number per unit area (kno) is an important factor in respect yield and in identifying opportunities to increase potential yield. some crop models are for dependence on kernel number prediction to yield simulation. in order to quantify the relationship between kernel number per unit area and influencing parameters (environment and non-environment-based facto...

Journal: :آب و خاک 0
علیرضا کوچکی ویدا مختاری شهربانو طاهرآبادی سلما کلانتری

abstract in order to investigate the response of two species of p. ovata and p. psyllium to water deficit. the experiment was conducted during 2009 growing seasons in the agriculture research station ferdowsi of mashhad. for this purpose a split plot experiment based on complete randomized block design with three replications was used. four irrigation levels (4000, 3000, 2000, 1000 m3/ha) alloc...

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
ابراهیم روحی مرکز تحقیقات کشاورزی و منابع طبیعی کردستان، سنندج

to study response of bread wheat cv. sardari to row spacing and seeding rate and to determine the desirable seed density under cold rain-fed conditions a two-year study (2008 and 2009) was carried out in qamloo research station located in kurdistan. a strip plot design with three replications was used. four rows spacing including 15, 17.5, 20 and 25 cm as horizontal factor and four seeding rate...

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