春植蔗糖分累积的研究
Studies on the Sugar Accumulatian in the Spring-planted Sugarcane
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摘要: 通过数学模拟研究春植蔗糖分的累积规律,发现春植蔗糖分的累积用二次曲线模拟较好。10月份是糖分累积的关键时期,糖分的累积与叶片的转化酶和淀粉酶密切相关,中性转化酶活性的提高有利于糖分累积,淀粉酶活性的提高则有利于蔗茎产量形成。此外研究还表明:早种有利于糖分的累积。植期的效应因品种而异。Abstract: Regression simulation was carried out to study the sugar accumulation in the spring planted sugarcane.It was found that sugar accumulation highly coincide with parahola curve.With the decreas of tmperature after the end of September,conversion of vegetative growth into physico-ogial maturity was underwent by cold stress.October was the key period to sugar accumulation.In addition,the earier sugarcane was planted in Spring, the more sugar was accumulated.The effect of plantng season on sugar accumulation was different from 5 tested varierties.With sugar accumulated more and earlier,F.I.83-13 was a constituously high sugar variety in the whole maturing stage,Although M.T.70-611 had high sugar content in the eraly stage,it is recommended to be harvested earlier because this variety has weakness of senescence and degrading sugar in the later stage, In spite of low sugar content in the early stage due to the more tillering stalks,F.I.79-9 rapidly accumulated sugar after the middle October.F.A.82-1112 and F.I.82-7 had lower sugar content than the other tested varieties.
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Key words:
- Sugarcane /
- sugar accumulation /
- Regression simulation /
- planting season
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[6] 蒋传葵等.1982.工具醉活力的测定,74~78上海科学技术出版社,上海 [7] Glaziou.KT.,1960.Accumulation and transformation of sugar in sugarcane stalks.Plant Physiol.,35(6):895~901
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