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首页> 外文期刊>日本作物學會紀事 >Analysis of Yield-Determining Process and Its Application to Yield Prediction and Culture Improvement of Lowland Rice. : LXXXV. An investigation on the percentage of ripened grains from the point of analytical view of the number of spikelets per unit area.
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Analysis of Yield-Determining Process and Its Application to Yield Prediction and Culture Improvement of Lowland Rice. : LXXXV. An investigation on the percentage of ripened grains from the point of analytical view of the number of spikelets per unit area.

机译：产量测定过程分析及其应用于产量预测和培养改善低地稻。 ：lxxxv。每单位面积小穗数量分析视图中成熟谷物百分比调查。

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After classifying the rice plants which grown under several cultural conditions in last few years into the several groups according to the number of spikelets per unit area, the authors studied the percentage of ripened grains from an analytical investigation of the number of spikelets per unit area, obtaining the following results. 1. When the number of spikelets per unit area was extremely small, no definite relation was found between the percentage of ripened grains and any component of the number of spikelets per unit area (i.e. the number of panicles per unit area, that of spikelets per panicle and that of primary and secondary rachis-branches per panicle). 2. The percentage of ripened grains showed a tendency to decrease progressively with an increase in the number of spikelets per unit area, spikelets per panicle and secondary rachis-branches per panicle, while it seemed to increase with an increase in the number of panicles per unit area. 3. When the number of spikelets per unit area was extremely large, the percentage of ripened grains was positively correlated with the number of panicles per unit area and negatively correlated with the number of spikelets per panicle as well as the number of secondary rachis-branches. 4. In case of the number of spikelets per unit area being large, the fact that the percentage of ripened grains decreased with an increase of the number of spikelets per panicle could be explained from the fact that the number of spikelets per panicle increased with a decrease of the amount of carbohydrates stored in sheaths and culms before heading and that of photosynthetic products after heading.
机译：在分类在近几年内在几年内的若干文化条件下生长的水稻植物根据每单位面积的小穗数量，作者研究了从每单位面积小穗数量的分析调查的成熟谷物的百分比。获取以下结果。 1.当每单位面积的尖峰数量非常小时，在成熟的谷物的百分比和每单位面积小穗数量的任何组分之间没有找到明确的关系（即每单位面积的圆锥花序数量，每胰穗和初级脊柱分枝每穗）。 2.成熟的晶粒的百分比显示出逐渐减少逐渐减少，随着每单位面积的小穗和每穗的二次脊柱分支的尖峰和二次rachis分支的增加而增加，而似乎随着每种单花花片数量的增加而增加单位区域。 3.当每单位面积的尖峰数非常大时，成熟的晶粒的百分比与每单位面积的圆锥片数呈正相关，并且与每穗的小穗的数量负相关，以及二次rachis-分支的数量。 4.如果每单位面积大的尖峰数量大，则熟化颗粒的百分比随着每穗尖的穗状穗数的增加而降低的事实可以从穗每穗增加的事实中解释在标题前的护套和秆中储存的碳水化合物量的量减少，标题后光合产物的碳水化合物。

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