نتایج جستجو برای: harvest index 2999 and 3067

تعداد نتایج: 16868465  

2003
Steven A. Sader Matthew Bertrand Emily Hoffhine Wilson

Multiple dates of Landsat Thematic Mapper (TM) imagery were analyzed to compare a decade of forest harvest activity in northern Maine’s industrial forest. Unsupervised clustering on three-date sequences of Normalized Difference Vegetation Index classified the harvest type and time period when change occurred. Problematic clusters were reclassified using the Normalized Difference Moisture Index,...

ژورنال: علوم آب و خاک 2006
انوشیروان فروزنده شهرکی, , محمدرضا خواجه‌پور, ,

Under irrigation and in double-cropping system, a large amount of plant residue remains after harvest that along with the limited time for residue decomposition and complete seedbed preparation, necessitates reduced tillage and special residue management. In the present study, the effects of various seedbed preparation methods on vegetative growth, yield components and seed and oil yields of su...

ژورنال: علوم آب و خاک 2008
ربیعی, بابک , رحیم سروش, حسین , سمیع زاده لاهیجی, حبیب اله , فضلعلی پور, مریم,

  Application of selection index for screening desired plants based on complex quantitative traits can be more effective than direct selection. This study was conducted using an F2 rice population consisting of 87 plants derived from a cross between two cultivars Gharib and IR28. The purpose was to establish suitable selection indices for increasing yield and its related traits in research farm...

ربیعی, بابک , رحیم سروش, حسین , سمیع زاده لاهیجی, حبیب اله , فضلعلی پور, مریم,

  Application of selection index for screening desired plants based on complex quantitative traits can be more effective than direct selection. This study was conducted using an F2 rice population consisting of 87 plants derived from a cross between two cultivars Gharib and IR28. The purpose was to establish suitable selection indices for increasing yield and its related traits in research farm...

Journal: :تولید گیاهان زراعی 0

in order to study the effect of uniconazole and cycocle growth regulators on growth, yield and nutrients content of pearl millet in drought stress condition, a field experiment was conducted in 2007-2008 in agriculture research center of zabol university. the experiment was conducted in split plot base on randomized completely block design with tree replications. main plots were different level...

Journal: :علوم باغبانی 0
مصطفی عشورنژاد محمود قاسم نژاد سمیه گرایلو سیدکامران میرحسینی

abstract having no exact knowledge of most appropriate harvesting time in kiwifruit grown in different regions of guilan province, as well as the low storage longevity of the fruits are the most important factors causing considerable reduction in both marketability and export affairs. in this study, the influence of fruit quality in term of harvesting time on the postharvest quality and food va...

Journal: :علوم گیاهان زراعی ایران 0
فاطمه ملک ملکی پردیس کشاورزی و منابع طبیعی دانشگاه تهران ناصر مجنون حسینی پردیس کشاورزی و منابع طبیعی دانشگاه تهران حسن علیزاده پردیس کشاورزی و منابع طبیعی دانشگاه تهران

to study the effect of plant density on seed yield and yield components of two lentil cultivars a field experiment using factorial design based on a complete block design was conducted with three replications at research farm of college of agriculture and natural resources, university of tehran (karaj) in 2008. treatments were lentil varieties (ziba, mardom), and plant densities (80, 160, 240, ...

Journal: :به زراعی کشاورزی 0
نسیمه منتظری تختی دانشجوی کارشناسی ارشد داشگاه شهید باهنر کرمان غلامرضا خواجویی نژاد دانشیار دانشگاه شهید باهنر کرمان محمد جواد آروین استاد دانشگاه شهید باهنر کرمان

effects of drought stress and chemical treatments was studied on growth and developmental traits of four barley cultivars using a split- split plot design (rcbd) in agricultural research farm, kerman university. main plots consisted of irrigation (control and drought stress after flowering), sub-plots consisted of four barley cultivars ( ʻnosratʼ, ʻafsalʼ, ʻyousofʼ and ʻuh12 lineʼ) and sub-sub ...

Journal: :crop breeding journal 2012
m. pouresmaeil r. khavari-nejad j. mozafari f. najafi f. moradi

drought is a major limiting factor for agricultural production in most parts of the world and landraces areimportant genetic resources for crop improvement in dry areas. during the 2007-2008 cropping season, 23 chickpea (cicer arietinum l.) genotypes consisting of 21 kabuli chickpea landraces provided by the national plant gene bank of iran and two known commercial varieties (hashem and arman) ...

Journal: :crop breeding journal 2013
b. pasban eslam

seed and oil yields, their components, and the relationships among trait performance were determined in 25genotypes of winter type oilseed rape (brassica napus l.). the experiment was carried out at the agricultural and natural resources research center of east azerbaijan, iran, in two consecutive growing seasons 2009-10 and 2010- 11. significant differences were observed in plant height, numbe...

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