interaction of chlormequat chloride (ccc) and drought stress on growth and grain yield of three inter barley (hordeum vulgare l.) cultivars
نویسندگان
چکیده
to evaluate the growth regulatory effect of chlormequat chloride (ccc) under drought stress conditions on three barley cultivars, a field study was conducted under badjgah agro climatic conditions (altitude 1810 m, longitude 52° 46´, and latitude 29° 50´) during 2003-2004 growing season. a randomized complete block based split- split plot of four replications was employed with two moisture levels (well watered and drought stress during the post anthesis period) as main plots, chlormequat chloride treatment placed in sub plots (control and 1370 g a.i. ha-1 at lemma primordium stage) and 3 barley cultivars (reyhaneh, karoon and valfajr) as sub-sub plots. the results indicated that drought stress decreased the grain yield, biological yield and harvest index of barley cultivars. the effect of drought stress on yield components, except for the number of grains per spike, was significant. ccc enhanced grain yield under well watered conditions, however, under drought stress conditions it decreased the grain yield significantly. the number of spikes m-2 was increased in ccc-treated plants. dry weight and leaf area decreased under drought stress conditions. green leaf area and dry weight of ccc-treated plants were greater during post anthesis period. although a deep understanding of the effect of ccc on grain yield under drought stress conditions needs more research and for longer periods, it became evident that the timely use of ccc in irrigated barley farms could result in to an increased grain yield.
منابع مشابه
effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars
این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...
Effect of Agronomic Practices on Growth, Grain Yield, Malt Yield Losses of Barley (Hordeum vulgare L.)
A field experiment was conducted during 2006-07 and 2007-08 at Ludhiana to study the effect of different agronomic practices on growth, grain yield, malt yield and losses of malt barley (Hordeum vulgare L.).The study revealed that plant height, dry matter accumulation, grain and straw yield were statistically at par with different method of sowing during both the years. Similar trend was also o...
متن کاملEvaluation of Drought Stress Indices in barley ( Hordeum vulgare L . )
In order to evaluation of drought resistant indices in barley (Hordeum vulgare L.), 10 barley genotypes evaluated in Completely Randomized Design with three Replications in two conditions, (under drought stress and in normal with irrigation in planting, flowering and grain filling stages) in Islamic Azad University, Miyaneh Branch Research Farm in 2012. Drought tolerant indices basis of yield p...
متن کاملEffects of nitrogen and chlormequat on growth and grain yield of winter barley cultivar valfajr
متن کامل
Comparative Proteomic Analysis of Two Barley Cultivars (Hordeum vulgare L.) with Contrasting Grain Protein Content
Grain protein contents (GPCs) of barley seeds are significantly different between feed and malting barley cultivars. However, there is still no insight into the proteomic analysis of seed proteins between feed and malting barley cultivars. Also, the genetic control of barley GPC is still unclear. GPCs were measured between mature grains of Yangsimai 3 and Naso Nijo. A proteome profiling of diff...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
علوم گیاهان زراعی ایرانجلد ۳۹، شماره ۱، صفحات ۰-۰
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023