【摘要】 通过高粱 -苏丹草杂交种产量构成因子分析表明 ,影响单株产量的主要因素是主茎粗和叶长 ;影响单位面积产量的主要因素是密度、叶长和单株产量 ,其中密度对单位面积产量的直接通径系数最大 ,为 1.0 2 99 。随机区组试验结果表明杂交种最适密度为 30万株 /hm2 。更多还原

【Abstract】 The relations between fresh weight per plant and its components, between yield per unit area and trait influencing it were studied. Results indicated that main stem diameter and leaf length had strong direct effects on fresh weight per plant, and the same was true for density, leaf length and weight per plant on yield per unit area. The path coefficient of density with yield per unit area (p=1.0299 ** ) was significant at 0.01 level. The best density suitable for the hybrid was 30×104 plants/hm 2.更多还原