During growing stages 59 leaf characters of 21 late indica varieties and 15 latejaponica varieties were measured.Stepwise regression and path analysis were conductedbased on breeding values of characters after variance analysis.The results indicate:there ex-ists much difference between important leaf characters of late indica and late japonica informing grain yield;there are 5 important leaf characters in late indica,4 of them belong toflag character;there are 9 important leaf characters in late japonica,7 of them belong to flagleaf character.The forecast correctness rates of the excellent reg...
