To transfer desirable resistance traits from O. minuta to O. sativa, intergeneric hybrid plants between O. sativa (AA, 2n=2X=24) and O. minuta (BBCC, 2n=4X=48)
The fruit of cultivar Guinong5 (Rosa roxburghii Tratt. ) was used to investigate the regularity of its growth and development, and the changes of endogenous hor