【摘要】 2001~2003年连续对8个不同类型的玉米杂交种进行了高矮立体间作种植比较试验,结果表明:(1)适合密植的紧凑株型杂交种和稀植大穗型杂交种高、矮间作种植均比单作种植产量显著提高,F值分别为5.10,6.31,5.19,4.86;株高、穗位高比单作稍有降低;抽雄、散粉、吐丝和成熟期均比单作提早;出籽率、百粒重均比单作高。(2)高、矮每隔2行、4行或每隔6行间作产量间无显著差异。(3)玉米杂交种高、矮间作种植的增产原因是有效地协调了群体与个体之间光合性状间彼此致约的矛盾,提高了光合作用效率。更多还原

【Abstract】 The comparison experiment of long and short-stalked multistorey intercropping planting to 8 different type maize hybrids in 20012003.the results showed that (1)the yield of long and short-stalked intercropping planting of thicking planting, compact plant-type and thin planting, big ear-type higher than single seeding,the different F valre are 5.10, 6.31, 5.19, 4.86; plant height, ear height of intercropping are lower than single seeding;tosseling stage, anthesis stage, silking stage and mature stage are earlier than single seeding; kernels rate, 100-kernels weight are higher than single seeding.(2)There was no significant difference of yield among long and short-stalked intercropping planting alternate two rows,four rows or six rows.(3)The reason about increasing in yield of maize long and short-stalked intercropping planting was coordinated contradictory of condition eachother effectively bwteen colony and individual or photosynthetic character,raised photosynthesis efficiency.更多还原