Studies on the Limit of Possibility of the Increase in Number of Leaves and Grains of the Main Stem of Rice Varieties. : 4. Influence of Sunlight Intensity (2)

水稻品種の主稈葉数並びに籾数の增加可能限界に関する研究 : 第4報 日照の強弱の影饗（2）

Studies on the Limit of Possibility of the Increase in Number of Leaves and Grains of the Main Stem of Rice Varieties. : 4. Influence of Sunlight Intensity (2)

Creators Yamagata Makoto

1. The influence of different sunlight intensity on the number of leaves and grains of the main stem, plant height, number of tillers and yield was investi-gated. The strong intensity of sunlight (by using the sunlight reflector all day long, the light intensity of horizontal incidence being a little less than 200％ as compared with the non-treated) was given to 10 rice varieties and the different intensities of sunlight were given to 5 rice varieties. The former treatment was carried out under the early and normal season cultivation and the latter under the normal season cultivation, and the different intensities of sunlight were prepared as follows:A. strong intensity of sunlight

[ISSN]0513-1715

[NCID]AN00244250