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通过对寒地超级稻种子在不同温度下的发芽试验,结果表明;超级稻种子发芽率与温度关系密切,随着积温的增加水稻种子的发芽率也增加,但积温对发芽的影响程度因品种而异。超级稻品种龙稻5号发芽受积温的影响最大,临界发芽温度也较高;相比之下超级稻品种松粳9号和龙粳14发芽受积温的影响较小,临界发芽温度也较低。
The results showed that the germination rate of super rice seeds was closely related to the temperature. The germination rate of rice seeds also increased with the increase of accumulated temperature, but the effect of accumulated temperature on the germination was affected by the varieties Different. Super rice variety Longdao 5 germinated by the maximum temperature, the critical germination temperature is higher; in contrast super hybrid rice varieties Songjing 9 and Longjing 14 germination less affected by the accumulated temperature, the critical germination temperature is lower .