甘蔗品种区域性试验的同异分析及联系势测验

Similarity-Difference Analysis and Connection Trend Test for the Sugarcane Variety Regional Trial

为克服传统甘蔗品种评价的局限性,运用同异分析法和联系势测验对全国甘蔗品种第五轮区试(2006～2007年)的14个品种进行了评价,结果表明,云蔗99-596,Mex105,Q170,Hocp92-648,Hocp91-555,福农98-1103,粤糖94-128,Lcp85-384等8品种与理想品种联系值介于0.8005～0.8880之间,综合性状优良,可进行示范推广;其余品种需进一步试验观察。从而证明这种方法在甘蔗品比试验中应用是可行的。

In order to overcome the limitation of traditional sugarcane variety evaluation method, 14 varieties in the national sugarcane variety regional trial from 2006 to 2007 were analyzed by similaritydifference analysis and connection trend test. The result showed that the connection degrees among between varieties （Yunzhe99 - 596, Q170, Hocp92 - 648, Hoep91 - 555, Funong98 - 1103, Yuetang94 - 128, Lop85 - 384） and the ideal variety were 0. 8005 - 0. 8880. The comprehensive traits were excellent, so these varieties should be demonstrated and popularized. The other varieties needed to be observed and tested further. It was concluded that similarity-difference analysis method could be used in sugarcane variety regional trial because its result was reliable.