【摘要】 采用回归系数(b)和离回归均方(S2d)等稳定性参数,对引进会东糖厂的Q75等5个甘蔗新品种以及川蔗13号等两个当地主栽品种的丰产性、稳产性进行了分析。结果表明,Q75、粤糖86-368、粤农81-762和川蔗13号等4个品种平均产量较高,稳产性较好,可以在会东糖厂蔗区加速繁殖推广。进一步对参试品种的产量构成因子如株高、茎径、有效茎的变异系数进行分析表明,各参试品种甘蔗产量的稳定性是建立在产量构成因子稳定性及其合理组合基础之上的。更多还原

【Abstract】 The stability parameters as regression coefficient (b) and variance of deviation (S2d) were used to estimate the productivity and yield stability of five introduced varieties and two main sugarcane varieties in Huidong County. The result indicated that the average yields were high and yield stability- were good for the four varieties such as Q75, Yuetang86-368, Yuenong81-762 and Chuanzhe13. They should be extended with accelerated propagation. Further, analysis of the coefficient of variation of yield factors-plant height, stalk diameter and millable cane showed that that the yield stability was in accordance with the stability and rational composition of the characters involved in yield.更多还原