کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10997798 | 1318699 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Root carbon consumption and grain yield of spring wheat in response to phosphorus supply under two water regimes
ترجمه فارسی عنوان
مصرف کربن ریشه و عملکرد دانه گندم بهاره در پاسخ به عرضه فسفر تحت دو رژیم آب
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کلمات کلیدی
عملکرد دانه، تامین فسفر، مصرف کربن ریشه، گندم بهار، تامین آب،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
چکیده انگلیسی
In semiarid areas, cereal crops often allocate more biomass to root at the expense of aboveground yield. A pot experiment was conducted to investigate carbon consumption of roots and its impact on grain yield of spring wheat (Triticum aestivum L.) as affected by water and phosphorus (P) supply. A factorial design was used with six treatments namely two water regimes (at 80-75% and 50-45% field capacity (FC)) and three P supply rates (P1=0, P2=44 and P3=109 μg P gâ1 soil). At shooting and flowering stages, root respiration and carbon consumption increased with the elevate of P supply rates, regardless of water conditions, which achieved the minimum and maximum at P1 under 50-45% FC and P3 under 80-75% FC, respectively. However, total aboveground biomass and grain yield were higher at P2 under 80-75% FC; and decreased with high P application (P3). The results indicated that rational or low P supply (80-75% of field water capacity and 44 mg P kgâ1 soil) should be recommended to improve grain yield by decreasing root carbon consumption in semiarid areas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Integrative Agriculture - Volume 15, Issue 7, July 2016, Pages 1595-1601
Journal: Journal of Integrative Agriculture - Volume 15, Issue 7, July 2016, Pages 1595-1601
نویسندگان
Yu GUAN, Zhen QIAO, Jiu-yuan DU, Yan-lei DU,