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反应日长因子的播期和纬度,对紫金粳生育期的影响效应显著大于溫度效应。可见,紫金粳的感光性明显强于感温性。同时,紫金粳齐穗后具有光补偿点低,光饱和点较高,剑叶叶绿素(a+b)含量较丰富的特点。因而,不仅有利于对弱光的利用,而且灌浆结实期易获得较高的净同化率。因此,该品种较适宜于在长江流域稻区作为麦茬稻和双季后作稻栽培。
The effects of sowing date and latitude of long-term response factor on the growth period of Zijin japonica were significantly greater than that of temperature. Visible, Zijin japonica sensitization was significantly stronger than the temperature sensitivity. At the same time, Zijin japonica had the characteristics of low light compensation point, high light saturation point and abundant chlorophyll content (a + b) in the flag leaves. Therefore, it is not only beneficial to the utilization of low light, but also easy to obtain high net assimilation rate during grain filling and fruiting. Therefore, the variety is more suitable for rice cropping in the Yangtze River valley and double cropping for rice cultivation.