The Chaling wild abortive type （CL-type） cytoplasmic male sterile line, E-Jing A, was characterized by stable sterility with a sterile plant percentage of 100%, a pollen sterile degree of 98% with dominated typical ...The Chaling wild abortive type （CL-type） cytoplasmic male sterile line, E-Jing A, was characterized by stable sterility with a sterile plant percentage of 100%, a pollen sterile degree of 98% with dominated typical abortive pollens, and showed the characteristics of good outcrossing with a stigma exsertion rate of 48.2% and an outcrossing rate varied from 30% to 50%, good combining ability, and fine grain quality. E-Jing A was sensitive to temperature. Its duration from sowing to heading was 78-90 d when it was sown from mid May to early June at Wuhan. The breeding procedure of E-Jing A and its characteristics, relationship of restoring and maintaining were introduced.展开更多
A comprehensive appraisal is performed on the newly bred of 28 hybrid middle-season rice combinations, with Yangliangyou 6 as a control, a total of 29 combinations, in terms of high and stable yield, adaptability and ...A comprehensive appraisal is performed on the newly bred of 28 hybrid middle-season rice combinations, with Yangliangyou 6 as a control, a total of 29 combinations, in terms of high and stable yield, adaptability and disease resistance. Two-line hybrid combinations have a total of 24, accounting for 82.76% of the exhibition, but there were only 5 three-line hybrid combinations have accounting for 17.24% of the exhibition. There are 13 high-quality two-line cross combinations, representing 54.17% of the two-line hybrid combinations. In the 8 hybrid combinations, whose yield per unit area is more than that of the control, 7 are two-line hybrid combinations, and the last one is the three-line hybrid combination. There are 15 two-line hybrid combinations with whole growth period 10 d shorter than Yangliangyou 6.展开更多
基金Supported by the Great Special Science and Technology Project of Hubei Province during the Eleventh Five-Year Plan(2006AA201A03)~~
文摘The Chaling wild abortive type （CL-type） cytoplasmic male sterile line, E-Jing A, was characterized by stable sterility with a sterile plant percentage of 100%, a pollen sterile degree of 98% with dominated typical abortive pollens, and showed the characteristics of good outcrossing with a stigma exsertion rate of 48.2% and an outcrossing rate varied from 30% to 50%, good combining ability, and fine grain quality. E-Jing A was sensitive to temperature. Its duration from sowing to heading was 78-90 d when it was sown from mid May to early June at Wuhan. The breeding procedure of E-Jing A and its characteristics, relationship of restoring and maintaining were introduced.
基金Supported by Wuhan Experimental Station of National Rice Industry Technology System(CARS-01-63)Hubei Key Research and Development Technology Program(2014ABA021)National Agricultural Science Technology Achievement Transformation Fund(2014GB2D100579)~~
文摘A comprehensive appraisal is performed on the newly bred of 28 hybrid middle-season rice combinations, with Yangliangyou 6 as a control, a total of 29 combinations, in terms of high and stable yield, adaptability and disease resistance. Two-line hybrid combinations have a total of 24, accounting for 82.76% of the exhibition, but there were only 5 three-line hybrid combinations have accounting for 17.24% of the exhibition. There are 13 high-quality two-line cross combinations, representing 54.17% of the two-line hybrid combinations. In the 8 hybrid combinations, whose yield per unit area is more than that of the control, 7 are two-line hybrid combinations, and the last one is the three-line hybrid combination. There are 15 two-line hybrid combinations with whole growth period 10 d shorter than Yangliangyou 6.
