不同穗型水稻品种籽粒灌浆的比较研究

Comparatice Studies on Grain Filling of Different Panicle Rice

在水稻结实期间,对不同穗型品种的籽粒灌浆进行了研究,发现直立穗型品种整穗籽粒灌浆强度前、中期高于弯曲穗型品种,灌浆末期低于弯曲穗型品种。同时发现直立穗型品种强势粒灌浆优于弯曲穗型品种,直立穗型品种的弱势粒启动灌浆早,灌浆高峰来得早,但到灌浆末期其灌浆速度低于弯曲穗型品种。

In seed Setting stage,studies were made on grain filling of different panicle rice,the results were as following:The grain filling of the whole spike of erect panicle variety was stronger than that of the curved panicle variety in the former and middle filling stage,and weaker in the latter filling stage.The strong grain filling of the erect panide variety was stronger than that of the curved panicle variety,and the weak grain of the erect panicle variety started filling early,but the filling rate of the weak grain of the erect panicle variety was weaker than that of the curved panicle variety in the latter filling stage