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子粒充实度差,是目前两系法杂交稻尤其是亚种间杂交稻推广应用中的一个突出问题。为了探讨气象条件对子粒充实度的影响及生理效应,我们于1990年对两系法杂交稻及亚种间杂交稻进行了分期播种试验,以期为有效地提高子粒充实度提供依据。1 材料与方法 供试组合为W6154S/特青、亚优
Poor grain filling degree is a prominent issue in popularization and application of two-line hybrid rice especially inter-subspecific hybrid rice. In order to investigate the effect of meteorological conditions on grain filling degree and its physiological effects, we conducted staged sowing experiments on two-line hybrid rice and subspecific hybrid rice in 1990 in order to provide the basis for effectively improving the grain filling degree. 1 Materials and methods for the test combination W6154S / Teqing, Asia excellent