کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8408827 | 1545079 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Genetic gains in wheat in Turkey: Winter wheat for dryland conditions
ترجمه فارسی عنوان
دستاوردهای ژنتیکی گندم در ترکیه: گندم زمستانه برای شرایط خشکی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
افزایش ژنتیکی، تولید گندم، گندم زمستانه، بازده،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
چکیده انگلیسی
Wheat breeders in Turkey have been developing new varieties since the 1920s, but few studies have evaluated the rates of genetic improvement. This study determined wheat genetic gains by evaluating 22 winter/facultative varieties released for rainfed conditions between 1931 and 2006. The study was conducted at three locations in Turkey during 2008-2012, with a total of 21 test sites. The experimental design was a randomized complete block with four replicates in 2008 and 2009 and three replicates in 2010-2012. Regression analysis was conducted to determine genetic progress over time. Mean yield across all 21 locations was 3.34 t haâ 1, but varied from 1.11 t haâ 1 to 6.02 t haâ 1 and was highly affected by moisture stress. Annual genetic gain was 0.50% compared to Ak-702, or 0.30% compared to the first modern landmark varieties. The genetic gains in drought-affected sites were 0.75% compared to Ak-702 and 0.66% compared to the landmark varieties. Modern varieties had both improved yield potential and tolerance to moisture stress. Rht genes and rye translocations were largely absent in the varieties studied. The number of spikes per unit area decreased by 10% over the study period, but grains spikeâ 1 and 1000-kernel weight increased by 10%. There were no significant increases in harvest index, grain size, or spike fertility, and no significant decrease in quality over time. Future use of Rht genes and rye translocations in breeding programs may increase yield under rainfed conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Crop Journal - Volume 5, Issue 6, December 2017, Pages 533-540
Journal: The Crop Journal - Volume 5, Issue 6, December 2017, Pages 533-540
نویسندگان
Mesut Keser, Nurberdy Gummadov, Beyhan Akin, Savas Belen, Zafer Mert, Seyfi Taner, Ali Topal, Selami Yazar, Alexey Morgounov, Ram Chandra Sharma, Fatih Ozdemir,