含云南蛮耗细茎野生种血缘甘蔗新品种(系)的宿根性研究

The Study on Ratooning Ability of the New Sugarcane Varieties/clongs Breeding with Consanguinity S.spontaneum

对瑞丽站育成含云南蛮耗细茎野生种血缘的第一个云蔗系列甘蔗新品种——云蔗99-155、云瑞99-113、云瑞99-131、云瑞99-178和云瑞99-601五个甘蔗新品系两新1宿品比试验,及部分品种(系)在云南省甘蔗品种区域试验的蔗茎产量、宿根能力、主要经济性状进行了统计分析,结果表明:(1)在站内品比试验中,5个品种(系)的产量、宿根能力均明显优于对照ROC10,其中,宿根能力最强的云瑞99-113较ROC10高27.42%,最弱的云瑞99- 601亦较ROC10高14.20%;5个新品种(系)均达到国家甘蔗品种审定标准。(2)在云南省区试中,云蔗99-155宿根能力较ROC10优势突出,达101.62%,蔗茎单产居15个参试品种之首;云瑞99-113宿根能力与ROC10相当,蔗茎单产比ROC10高7.92%,初步显示出云南蛮耗细茎野生种对甘蔗品种宿根性及适应性改良的效果。

The first new sugarcane variety YZ99-155, and the new sugarcane clong YR99-113, YR99-131, YR99-178, YR99-601 were bred with consanguinity S.spontaneum in Manhao, Yunnan of China. The ratooning ability and the major economic traits of the five varieties （clongs） were analyzed according to variety trials in Ruili breeding station and Yunnan region including two plant and one ratoon canes. The results showed that： （a） in Ruili breeding station, the ratooning ability of the five varieties （clongs） was significantly better than that of ROC10 （CK）, in which the YR99-113 and YR99-601 was higher 14.20% to 27.42% in comparison with the CK. 5 varieties （clongs） were up to the native standards for sugarcane varieties. （b） in Yunnan regional trial, the ratooning ability of YZ99-155 was 101.62%, its cane yield was as the first on 15 tested varieties; that of YR99- 113 was approximate to ROC10. The results indicated that the improved effect of S.spontaneum on rationing ability and adaptability sugarcane varieties was notable.