四川甘蔗品种更替中性状演变规律的研究  

Studies on the Property Evolutional Law to Sugarcane Variety Alternation in Sichuan Province

作　　者：陈能武[1] 黄久凯[1] 杨荣中 

机构地区：[1]四川省制糖糖料工业研究所

出　　处：《甘蔗糖业》1993年第1期7-14,共8页Sugarcane and Canesugar

摘　　要：1986～1991年用25个品种代表四川5个甘蔗品种推广时期,研究了品种更替与性状演变的关系。结果表明:锤度、株高、茎径、单茎重、亩含糖量和叶面积等性状随品种的更替逐步提高;分蘗率、宿根发株数、蔗产量、叶长、节间长度等性状趋于稳定;前期生长速和节间数的变化不大。由于亩有效茎数的演变呈逐步减少的趋势,虽然其它产量因素有所改进,但甘蔗亩产量的改进则不明显。今后四川甘蔗品种选育中应主攻亩有效茎数的提高。此外,根据四川是霜冻蔗区的特点应进一步提高品种的宿根性。相关分析结果表明,除可对宿根性进行直接选择外,通过亩有效茎数,分蘗率的多少可对宿根性进行间接选择。1986—1991, 25 sugarcane varieties represented 5 cane releasing periods, in Sichan, and also the relation between variety alternative and properties evolution were studied. The results indicated that: brix, plant height, diameter, stalk weight, sugar content per mu and leaf area were increased progressively through variety alternative. The rate of tillering, ratooning property, cane yield, leaf length, internode length trended to be stable, and the growth speed of early-stage and the number of internodes per stalk were less changed. Meanwhile, because of the number of millable stalk trended to be desrease through variety alternative, increase of cane yield was not significant, though other yielding componants were improved.The increasing of number of millable stalk would be the key to improve cane yield,, According to the frozen condition of Sichuan cane area, ratooning property should be improved through cane breeding from now on, in Sichuan Province. Relative analysis results indicated that, besides direct selection, the indirect selection of the millable stalk and the rate of tillering would be effective for the ratooning property.

关 键 词：甘蔗 品种 性状 演变规律 

分 类 号：S566.102.1[农业科学—作物学]