论文部分内容阅读
本文利用杂交水稻分期播种试验资料,讨论了杂交水稻于物质增重符合Logistic曲线规律,论证了b值代表全生育期的长短。引入生长速率GS和相对生长速率RGS,证明当t=-a/b时,GS出现极大值,RGS曲线出现拐点,说明孕穗期前后生长出现转折性变化。此外还讨论了杂交水稻生长最适温度的变化规律以及光温条件对RGS的影响,并得出相应的表达式。最后建立了杂交水稻生长的光温模式,经过实际资料验证,结果比较理想。
In this paper, the experimental data of hybrid rice sowing were used to discuss the rule of Logistic curve that the weight gain of hybrid rice accorded with Logistic curve. The value of b represents the length of the whole growth period. The growth rate GS and relative growth rate RGS were introduced to prove that when t = -a / b, the maximum value of GS appeared, and the inflection point of RGS curve appeared, indicating the turning change of growth before and after booting stage. In addition, the variation law of optimum temperature of hybrid rice growth and the influence of light and temperature on RGS were also discussed, and the corresponding expressions were obtained. Finally, the light and temperature pattern of hybrid rice growth has been established. After verified by actual data, the result is quite satisfactory.