Yield and main economic characters of ten main cropping and ratoon cropping rice variteies in Xinyang city were comprehensively studied by the method of grey relational analysis. The results showed that the most suitable rice variety in Xinyang was Fuliangyou 1 mainly in the equal relational grade analysis and the weighted grade analysis, followed by Liangyou 6326 and Wandao 199. The degree of association of three varieties were close to the target, such as fengyuanyou 358, Suiyuan 9 and Liangyou 302. Wanhanyou 26 was not suitable for ratoon rice cultivation in southern Henan region.
FENG Da-Qing, LIU Xiang-Chen-*, QIAO Li, YU Gui-Long, LI Ping
. Grey Relational Analysis and Evaluation of Ratoon Rice Varieties in Southern Henan Region[J]. China Rice, 2014
, 20(6)
: 14
-17
.
DOI: 10.3969/j.issn.1006-8082.2014.06.004
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