论文部分内容阅读
通过对草高粱的生理性状和生物产量研究,证明草高粱前期要重视下数第四叶的生长发育,后期上三叶更重要,其中剑叶和倒三叶功能最强;生物产量主要决定品种本身遗传特性、气候环境适宜、光合效率高、呼吸消耗少、生长势旺、再生力强、干物质积累多的综合作用,而与生长日数长短在一定条件下不呈正相关;本研究中生理性状好、生物产量高的品种是晋草5号、龙草0402、晋农大甜饲杂1号。
Through the study on the physiological characters and biomass yield of sorghum, it was proved that the sorghum should pay attention to the growth and development of the fourth leaf at the next period, and the upper three leaves are more important in the later period, in which the flag leaf and the inverted leaf are the most effective; Its own genetic characteristics, suitable climate and environment, high photosynthetic efficiency, less respiratory consumption, vigorous growth, strong reproductive capacity and accumulation of dry matter, but not with the number of growth days under certain conditions, there is no positive correlation; the physiological characteristics of this study Well, the high yield of biological varieties are Jincao 5, Longcao 0402, Jinnong sweet feed on the 1st.