81006526

open access

Version of Record

シュッスイキ ニ オケル スイトウ シヨウ ノ カガク セイブン ト シュウリョウ トノ カンケイ ダイ3ホウ

On the Relation of Some Chemical Components in Boot Leaves to Yield of Rice Plant Sampled throughout the Country(III)

Japanese (日本語)

兵庫農科大學研究報告. 農学編

2(2)

157-160

兵庫農科大学

1956

2014-06-06

Continuing the previous report, districts gathered samples were divided northern type, transitional type and southern type by growing process of rice plant. Furthermore, those varieties within each district were divided early, late maturing varieties and their intermediate or ear number, ear weight type and their intermediate. And then, in each group of varieties, the correlation coefficients between nutritional status and yield (grain weight) were calculated. Among these results, the correlations between P% or P/N and yield were characteristically significant, that is, those for transitional type were positive, but those for northern and southern type were negative. Thinking above results, so far as boot leaves concerning, it was considered that the P% and P/N were most important for determination of yield, at least after heading. Finally, multiple regression equations of yield on nutritional status which correlated significantly with yield were estimated. As the deviations between calculated value and actually measured value were considerably large, however, those equations could not use for the forecast of yield.

紀要論文