摘要:
以新台糖16号为试验材料, 在甘蔗生长初期、拔节期和糖分积累期喷施不同浓度的吲哚丁酸水剂, 通过对其品质性状指标的测定与分析, 探讨增糖剂对甘蔗品质和产量的影响。结果表明:吲哚丁酸喷施5次的增糖效果优于4次。喷5次的1 000倍液处理、600倍液处理和500倍液处理的甘蔗蔗糖分与空白对照比均达显著或极显著水平, 600倍液的效果最稳定, 在各月份都比对照增糖达显著水平以上。不同处理的蔗茎产量与对照相比, 均达显著与极显著水平;各处理之间差异达显著水平, 600倍液增产效果最好。吲哚丁酸600倍液处理对甘蔗糖分、重力纯度和蔗茎产量的提高效果最明显。
关键词:
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增糖剂
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甘蔗
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蔗糖分
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蔗茎产量
Abstract:
A sugar-increasing IBA agent, ROC16, was sprayed on the sugarcane leaves during seedling, shooting, and sugar accumulating period to study its effect on sucrose content and yield of the plants.The results showed that spraying IBA 5times produced better effect than spraying 4times.With 5sprayings, the sucrose contents of the sugarcanes treated with 1 000 x, 600xand 500 xIBA solutions were all higher than CK at P<0.05 or P<0.01 significant level.The 600 xwas the best, which resulted in sugarcanes with a sucrose content higher than CK every month.The yields of the treated sugarcanes were all higher than that of CK.The differences were significant, with the 600 xbeing the best.It appeared that 600 xIBA solution for the spraying gave the most desirable effects on sucrose content, gravity purity, and yield, as compared to CK or other treatments.
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