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研究结果表明 :株高、节间长度与蔗茎产量有着极具显著的相关 ,公顷有效茎数与果蔗蔗茎产量达显著相关水平 ,茎径与蔗茎产量相关较小。性状间株高与节间长度相关达极显著 ,其他性状相关不显著 ;公顷有效茎数对蔗茎产量的直接贡献最大 ,其次是株高和节间长度 ,茎径对蔗茎产量直接贡献较小。由此认为在果蔗选育种和资源筛选上 ,选择产量时把公顷有效茎数和株高放在首位 ,重视节间长度。在栽培上适当增加播种量。公顷有效茎数控制在 7- 7. 5万条 ,茎粗 3cm以上 ,做好水肥管理 ,提高株高和节间长度。
The results showed that there was a significant correlation between plant height and internode length and the yield of cane. The effective number of stems per hectare and cane yield of sugarcane reached a significant correlation, and the correlation between stem diameter and cane yield was small. There was significant correlation between plant height and internode length and no significant correlation with other traits. The number of effective stalks per hectare had the highest direct contribution to the yield of cane, followed by plant height and internode length. The direct contribution of stem diameter to cane yield was small. Therefore, it is suggested that the effective stem number and plant height of hectare should be placed in the first choice when choosing the yield of breeding and resource screening of sugarcane, and the internode length should be emphasized. Appropriate increase in planting seeding. Hectare effective number of stems in the 7- 7 50000, stem 3cm above, do water and fertilizer management, improve plant height and internode length.