首页> 外文期刊>日本作物學會紀事 >Ecological Study on the Rice Varieties : V. Effects of the sowing time to the agronomical characters, or yielding capacity, time of young-ear differentiation, and elongation of internodes, in rice.
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Ecological Study on the Rice Varieties : V. Effects of the sowing time to the agronomical characters, or yielding capacity, time of young-ear differentiation, and elongation of internodes, in rice.

机译:水稻品种的生态研究:V.播种时间对农艺性状的影响,或屈服能力,幼耳差异的时间,水稻中的节间伸长。

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1). It carried out the ecological study on the main agronomical characters; e. g., yielding capacity, time of young ear differentiation, and elongation of upper stem internode, in rice plants taken by the movement of sowing time, for a research material to the planning of rice culture. 2). The numbers of elongated internodes in rice culm increase by the late croping, but in case of over-late croping these numbers decrease because of temperature in early fall. 3). The critical air-temperature of young ear differentiation in rice plant was 18°C., such as usual mentioned. However, in case of very short time exposure, the differentiation are not occurence even under this temperature. On the other hand, the elongation of internodes in a culm were possible in spite of very short time exposure, under available lowest temperature. 4). The elongation of terminal internode was clearly affected by low temperature, but the effect of low temperature to the internodes of stem lower part which being started elongation seems to be a little. 5). In the choice of rice variety forhigh yield, it should be thought the sum-temperature of them from seeding to heading; e. g., 2, 300°C in early croping, 2, 100°C in standard croping, and 1, 800°C in late croping. This problem, varietal responces to temperature, is very importance to the planning culture of rice, and to increase of effective yielding capacity in each varieties.
机译:1)。它对主要农艺性质进行了生态研究; e。 G.,播种时间运动的水稻植物中幼耳分化的产能,幼耳间伸长的时间,为水稻培养的规划进行研究。 2)。晚期裁剪增加了水稻秆的细节数,但在过晚裁剪的情况下,由于早期的温度,这些数字减少。 3)。水稻植物中幼耳分化的临界空气温度为18°C。,如通常提到的。然而,在非常短的时间曝光的情况下,即使在该温度下也不会发生分化。另一方面,尽管在可用的最低温度下,仍有可能在枯萎病中的节间伸长率。 4)。终端节间的伸长率明显受到低温的影响,但低温对开始伸长伸长率的茎下部分的效果似乎是一点点。 5)。在选择水稻品种的高度屈服中,应该认为它们的总和从播种到标题; e。 g,2,300°C在早期裁剪中,2,100°C标准作物,1,800°C的后期裁剪。这个问题,品种响应于温度,对水稻的规划文化非常重要,并增加每种品种的有效屈服能力。

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