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首页> 外文期刊>African Journal of Biotechnology >Effect of nitrogen on rice yield, yield components and quality parameters
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Effect of nitrogen on rice yield, yield components and quality parameters

机译：氮素对水稻产量，产量构成及品质参数的影响

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Effect of nitrogen (N) fertilizer levels on yield and yield components of rice (Hashemi, Ali kazemi and Khazar) was investigated in an experiment as factorial in randomized complete block design (RCBD) with three replications in a paddy light soil at Guilan province, Iran, in the year 2008 to 2009. In this experiment, four treatments including: N1, control (no N fertilizer); N2, 30 kg N/ha; N3, 60 kg N/ha; N4, 90 kg N/ha were compared. Results show that total biomass (8386 kg/ha), grain yield (3662 kg/ha), plant height (127.9 cm), tillers m-2 (250.22), panicles m-2 (235.8) and total grain per panicle (103.8) reached the highest value at high nitrogen level. Among the varieties, the highest total biomass (7734 kg/ha), grain yield (3414 kg/ha), unfilled percent (20.16%) and total grain per panicle (78.2) belonged to Khazar. Significantly, tiller m-2 (250.83) and panicle m-2 (235.91) were obtained from Hashemi. Also 1000-grains weight against various studied varieties revealed that Ali kazemi produced maximum 1000-grains weight (28.99 g). Among the different N application levels, significant difference was observed in all quality parameters except gelatinization temperature (GT); the highest amylose content (AC) was obtained from treatment N1 and significantly highest gel consistency (GC) was obtained from treatment N3. In general, GC was increased with N-fertilizer application and only result was changed from N3 to N4 and was reduced. Whereas AC was reduced from N1 to N3, and the result was reversed from N3 to N4. Meanwhile, the interaction effect of variety × nitrogen fertilizer did not show significant difference between all quality parameters except of GC.
机译：在桂兰省水稻轻质土壤上进行了三次重复的随机完整块设计（RCBD）中的因子分析，研究了氮（N）肥水平对水稻（Hashemi，Ali kazemi和Khazar）产量和产量组成的影响，伊朗，年份为2008年至2009年。在此实验中，有四种处理方法，包括：N1，对照（无氮肥）;和N2，30千克N / ha; N3，60千克N / ha;比较了N4、90千克氮/公顷。结果表明，总生物量（8386 kg / ha），谷物产量（3662 kg / ha），株高（127.9 cm），分ers m-2（250.22），穗m-2（235.8）和每穗总谷物（103.8）在高氮水平下达到最高值。在这些品种中，最高生物量（7734千克/公顷），谷物产量（3414千克/公顷），未填充百分比（20.16％）和每穗总谷物（78.2）属于哈萨尔。显着地，从Hashemi获得分tillm-2（250.83）和穗m-2（235.91）。同样针对各种研究品种的1000粒重显示，Ali kazemi产生的最大1000粒重（28.99 g）。在不同的氮肥施用量中，除糊化温度（GT）外，所有质量参数均存在显着差异。从处理N1获得最高的直链淀粉含量（AC），从处理N3获得明显最高的凝胶稠度（GC）。通常，随着氮肥的施用，GC含量增加，只有结果从N3变为N4并降低了。而AC从N1还原为N3，结果从N3还原为N4。同时，除GC外，品种×氮肥的交互作用在所有质量参数之间均无显着差异。

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