نتایج جستجو برای: 1 total yield

تعداد نتایج: 3440294  

Journal: :journal of rangeland science 2012
ali ashraf jafari milad lak ghasem assadian

. in order to study the variation for seed yield and its components, 200 accessions of alfalfa (medicago sativa l.) were sown as drilled plots, using alpha designs/unreplicated with two repeated entries with in all of 10 blocks under dry land farming system in kabodarahang research station, hamadan, iran, during 2010 to 2011. data were analyzed for descriptive statistics, correlation, regressio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی علوم پایه زنجان - دانشکده فیزیک 1392

in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...

حیدری, سعید, عزیزی, خسرو, نوروزیان, عادل, یعقوبی, محمد,

In order to study the effects of micronutrients zinc (Zn) and boron (B) foliar application on seed yield, yield components, seed oil and protein content and growth indices of canola (Brassica napus cv okapi), a field experiment was conducted during 2008 growing season. The experiment was a factorial with sixteen treatments and three replications on the basis of a completely randomized block de...

Journal: :بوم شناسی کشاورزی 0
علی اصغر محمدآبادی پرویز رضوانی مقدم جبار فلاحی

studies on crop improvement of saffron (crocus sativus l.) can play an important role in development of this native crop. in this context, an experiment was conducted at agricultural research station, ferdowsi university of mashhad, iran, as a factorial based on randomized complete block design with three replications, during 2005-2010 years. first studied factor was planting pattern of saffron...

A. Kumar A. Mann P. Sharma P. Sheoran, Sher Singh, V. Sardana

A field experiment was conducted to study the effects of N fertilization on uptake,accumulation/remobilization, use efficiency and yield of sunflower grown in alluvial plains ofnorthwestern India comprising four hybrids (PSH 996, PAC 3789, PSH 569 and SH 3322)and five N levels (Control, 40, 80, 100 and 120 kg N ha-1) in split-plot design with threereplications. Increased N fertilizer rates sign...

Arash Roozbahani, Mohammad Reza Akhavan Mohseni Saeed Reza Yaghoobi

This research was conducted to evaluate effect of potassium and iron fertilizers on agro-physiological traits affected different irrigation regime of corn in Shahryar (Tehran province, central of Iran) via a split-split plots arrangement based on randomized complete blocks design with three replications during 2015. The main plot included different irrigation regime (Normal irrigation and stop ...

The medicinal plant bitter apple belongs to Cucurbitaceae family. To study the effect of phenylalanine and tryptophan amino acids on morphological and physiological characteristics of Citrullus colocynthis L., an investigation was conducted according to a completely randomized block design with four treatments and three replications in University of Zanjan, Iran. The studied factors were consis...

Journal: :به زراعی کشاورزی 0
پیمان شریفی استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد رشت، رشت ـ ایران یونس ایزدپناه دانشجوی کارشناسی ارشد، دانشگاه آزاد اسلامی، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، پردیس گیلان، واحد علوم و تحقیقات، رشت ـ ایران محمد نقی صفرزاد ویشکایی استادیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد رشت، رشت ـ ایران محمد آرش طهمورث پور دانشجوی کارشناسی ارشد، دانشگاه آزاد اسلامی، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، پردیس گیلان، واحد علوم و تحقیقات، رشت ـ ایران

a factorial experiment based on a randomized complete block design with three replications was carried out in order to study the effects of tuber size, nitrogen fertilizer and harvest date on yield and yield components of potato. this experiment was conducted in a grower’s farm in uraki village located in chabahar city, in 2011. in this experiment, the treatments were two levels of tuber size (...

Journal: :تولید گیاهان زراعی 0
المیرا خیر اندیش دانشجو محسن رشدی دانشگاه آزاد سعید یوسف زاده دانشگاه پیام نور

background and objectives: drought is one of the most important factor limiting plant growth around the world and the most common environmental stress which is limited produce approximately 25% of the world's land. production of secondary metabolites in medicinal plants changes by environmental condition and also water stress is effective factor in growth and synthesis natural compounds in...

1985
ROBERT B. THOMAS

The "Selection At List Time" (SALT) scheme controls sampling of concentration for estimating total suspended sediment yield. The probability of taking a sample is proportional to its estimated contribution to total suspended sediment discharge. This procedure gives unbiased estimates of total suspended sediment yield and the variance of the estimate while automatically emphasizing sampling at h...

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