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三、干物质积累和运转特点冀84—5418小麦干物质的积累和运转分配与其高产品种有一定差异,以生育前期和花后的干物质积累较快较多,后期叶鞘中滞留的干物质较少而加速了籽粒灌浆进程。 1.干物质积累 (1)品种差异。据两年试验结果,冀84—5418与其它品种比较,干物质积累除1991年略低外,1990年及其余阶段均以该品种最高(见表3)。从而直接决定了较高产量的形成。表3 几个主要阶段的干物质积累(公斤/亩)
Third, the characteristics of dry matter accumulation and operation Ji 84-5418 wheat accumulation and distribution of dry matter and its high-yielding varieties are some differences in the pre-and post-anthesis dry matter accumulation more quickly, the late retention of leaf sheath dry matter than Less accelerated grain filling process. 1. Dry matter accumulation (1) species differences. According to the two-year test results, compared with other varieties, Hebei 84-5418 had the highest dry matter accumulation except for 1991, the highest in 1990 and the rest (Table 3). Which directly determines the formation of higher yield. Table 3 Dry matter accumulation in several major stages (kg / acre)