水稲玄米の化学成分組成におよぼす一次枝梗剪除の影響

抄録

Investigations have been carried out to determine the influence of primary rachis branch cutting on the protein, fat, ash, phosphorus, potassium and magnesium contents of lowland brown rice cultivated by varied nitrogen dressings. With respect to the cutting, it was shown that the protein, ash, phosphorus and magnesium contents on dry matter basis increased and were negatively correlated with number of spikelets per panicle and that the potassium content in ash decreased and was positively correlated with number of spikelets per panicle. When the protein content increased by the cutting or the nitrogen application, both the treatments weakened the effect each other