نتایج جستجو برای: harvest index

تعداد نتایج: 416735  

Journal: :پژوهش های حبوبات ایران 0
مریم پیرزاده مقدم عبدالرضا باقری سعید ملک زاده شفارودی علی گنجعلی

in order to evaluate of yield and yield components of chickpea genotypes, path analysis set to facilitate the selection of high yielding varieties in limited irrigation. research was canducted in 2010-2011 growing season at the agricultural research station, ferdowsi university of mashhad, by using seven drought tolerante genotypes (recommended from a previous research) in a randomized complete...

Journal: :علوم گیاهان زراعی ایران 0
آیدین حمیدی رجب چوکان احمد اصغرزاده مجید دهقان شعار امیر قلاوند محمد جعفر ملکوتی

a study was conducted to evaluate the effects of plant growth promoting rhizobacteria (pgpr) inoculants including four strains of azotobacter chroococcum, azospirillum lipoferum, a. brasilense and pseudomonas fluorescence on dry matter accumulation of late maturing maize(zea mays l.) hybrids, sc704, sc700 and a promising single cross b73×k18. a factorial experiment was conducted in research fie...

2007
Armen R. Kemanian Claudio O. Stöckle David R. Huggins Luis M. Viega

Several methods have been proposed to simulate yield in crop simulation models. In this work, we present a simple method to estimate harvest index (HI) of grain crops based on fractional post-anthesis phase growth ( fG = fraction of biomass accumulation that occurred in the post-anthesis phase). We propose that HI increases in a linear or curvilinear fashion in response to fG. The linear model ...

Armaghan Charkhab Mani Mojaddam,

BACKGROUND: Bio-fertilizers being essential components of organic farming play vital role in maintaining long term soil fertility and sustainability.OBJECTIVES: Study yield and growth indices of sorghum in response to consume chemical fertilizer and Nitroxin bio-fertilizer.METHODS: This research was conducted via split plot experime...

Journal: :journal of medicinal plants and by-products 0

to survey the effects of chemical and biological phosphorus on the yield and essential oil of satureja hortensis l. as an important medicinal plant, factorial experiment was conducted based on randomized complete block design with three replicates at research station of faculty of agriculture, urmia university in 2011. the treatments were chemical phosphorus fertilizer with four levels (0, 50, ...

Journal: :INTERNATIONAL RESEARCH JOURNAL OF AGRICULTURAL ECONOMICS AND STATISTICS 2015

آزادی, امین, قائدرحمتی, مهناز, مجیدی هروان, اسلام, محمدی نژاد, قاسم, مردی, محسن, ناخدا, بابک, نقوی, محمدرضا,

Salinity is one of a major abiotic stress, specifically on arid and semi-arid areas that has influenced on crop growth and reduced grain yield. The purpose of present study was identification of agronomic traits related to wheat grain yield variation under control and salinity conditions. In order to produce a population of 272 recombinant inbred lines (RILs), a cross between two bread wheat cu...

Journal: :علوم گیاهان زراعی ایران 0
حمید محمدی دانشجوی سابق دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران علی احمدی دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران فواد مرادی استادیار پژوهشکده بیوتکنولوژی کشاورزی کرج علیرضا عباسی استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران کاظم پوستینی استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران مهدی جودی استادیار دانشگاه محقق اردبیلی- دانشکده کشاورزی مغان فواد فاتحی

drought stress is one of the most important abiotic stresses which can affect the growth of a plant, thereby curbing crop yield. identification of effective morphological traits is the main aim of each breeding program. our objective was to identify agronomic traits associated with changes in grain yield of wheat under irrigated and drought conditions. to address this objective, grain yield and...

2006
Ilpo Kojola Ville Hallikainen Tuire Nygren Mauri Pesonen Vesa Ruusila

We examined the occurrence of brown bear (Ursus arctos) in Finland by using hunterprovided observations and harvest data for 1992–2004. We calculated a simple index (bears observed/ all observation cards) from observation cards filled annually by nearly 5,000 moose hunting clubs. This occurrence index was treated as a dependent variable in a mixed regression model to examine differences between...

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