【摘要】 通过物理摘除木薯叶片和薯块的方式调控其源库关系,研究不同源库条件下木薯的株高、茎粗、茎重、薯重、薯块数、淀粉含量等指标,并进行方差及相关性分析,结果表明,摘叶后木薯产量与摘叶数量呈显著负相关;摘叶后株高与摘叶数量呈显著正相关;木薯定植90 d及以前摘叶处理块根数显著减少,而120 d及以后无显著影响;木薯定植150 d及以后摘薯,木薯产量与摘薯数量呈正相关,木薯定植120 d及以前处理无显著影响;木薯定植120 d及以前摘薯处理薯块数显著增加,但未达到显著性水准,木薯定植150 d及以后摘薯处理与块根数无显著关系;木薯薯重、薯块数、收获指数与茎重、薯块数、茎粗、薯块数、淀粉含量呈极显著正相关,与株高呈显著或极显著负相关。更多还原

【Abstract】 To control the relationship between the source libraries by physically removing the leaves and pieces of cassava,the plant height,stem thickness,stem weight,weight,pieces and starch content of cassava were studied under the conditions of different source libraries,and the variance and correlation analysis were carried out.The results show that after removing the leaves,there is a significant negative correlation between the yield of cassava and the number of removed leaves.After removing the leaves,the height of the plant is positively correlated with the number of the removed leaf.The number of roots decreased significantly before 90 days of planting,but not at 120 days and later.There is a positive correlation between the yield of cassava and the number of removed leaves after 150 days of planting,and there is no significant effect for 120 days.The pieces of cassava treated with removing leaves before 120 days significantly increased but did not reach the level of significance.The pieces of cassava treated with removing leaves after 150 days are not significantly correlated with the number of roots.There is an extremely significant positive correlation between the weight of cassava,the pieces of cassava,the harvest index and the weight of stem,the pieces of cassava,the thickness of stem,and the content of starch,and a negative correlation with the height of the plant.更多还原