论文部分内容阅读
本文用Ｒｉｃｈａｒｄｓ方程Ｗ＝Ａ（１＋Ｂｅ－ｋｔ）－１Ｎ描述了４个亚种间杂交稻及品种间杂交稻汕优６３的籽粒灌浆过程。结果表明，亚种间杂交稻一般较汕优６３的灌浆期短，灌浆速率低，但组合间差异很大，威优４１３的各项灌浆参数均接近于汕优６３，充实度也接近于汕优６３；协优４１３的灌浆速率低，特别是中后期，且后期短；汕优４１３的起始生长势较汕优６３高，中期灌浆速率高，但灌浆期短，特别是中期短；赣化７号的起始生长势低，灌浆期长，但灌浆速率低。协优４１３上部枝梗充实度较汕优６３低的主要原因是其起始生长势低，灌浆速率低，而中下部枝梗的主要原因是灌浆期短。
In this paper, the grain filling process of four subspecies hybrid rice and the hybrid rice “Shanyou 63” was described by Richards equation W = A (1 + Be-kt) -1N. The results showed that the intersubspecific hybrid rice was generally shorter in filling period and lower in filling rate than Shanyou 63, but the combinations differed greatly. The grain filling parameters of Weiyou 413 were all close to Shanyou 63, and the enrichment degree was close to that of Shanyou 63 Yau 63; Xieyou 413 had a low filling rate, especially in the late-mid and late-late period; the initial growth potential of Shanyou 413 was higher than that of Shanyou 63, but medium filling rate was high but the filling period was short, especially in the middle period On the 7th of the initial growth potential is low, filling a long period, but the filling rate is low. The main reason for the lower degree of enrichment of the upper branches of Xieyou 413 was that Shanyou 63 was low in initial growth and low in filling rate, while the main reason for middle and lower branches was short filling period.