[Objective] To breed and utilize the japonicalinous cytoplasmic male sterile （CMS） line Chunjiang 19A with wide compatibility and high outcrossing rate. [Method] Cbunjiang 16A was used as the female parent to cross ...[Objective] To breed and utilize the japonicalinous cytoplasmic male sterile （CMS） line Chunjiang 19A with wide compatibility and high outcrossing rate. [Method] Cbunjiang 16A was used as the female parent to cross with Indica-Japonica crossing material B125, which was used as male parent. Backcross breeding was contin- ued for consecutive generations to breed the CMS lines with wide compatibility and high outcrossing rate. [Result] Chunjiang 19A is a late medium Japonica CMS line with good fertility stability. The proportion of sterile plants and pollen abortion rates are 100% and the Cheng＇s index is 14. It is the japonicalinous CMS line with early flowering, partial stigma exsertion, high outcrossing rate, wide compatibility, high re- sistance to stripe disease and good combining ability. The hybrid rice combinations originated from Chunjiang 19A have strong tUlering ability, dominant heterosis, high resistance to stripe disease, great yield potential and good color change at mature stage. [Conclusion] The successful breeding of Chunjiang 19A laid good foundation for the breeding of Japonica hybrid rice and Indica-Japonica hybrid rice combinations with high seed production and dominant heterosis, showing a promising application prospect.展开更多
Chunjiang 03,a late season japonica rice vari-ety developed by CNRRI in 1990,was derivedfrom the cross of Xiushui 11/T82-25.From1994 to 1996,it was tested in provincial riceadaptability trials and provincial rice prod...Chunjiang 03,a late season japonica rice vari-ety developed by CNRRI in 1990,was derivedfrom the cross of Xiushui 11/T82-25.From1994 to 1996,it was tested in provincial riceadaptability trials and provincial rice produc-tivity trials in Hubei and Anhui provinces.Itreached a high yield with an average of 7500kg/ha in large-scale paddy field(see table),and released commercially in 1997 and 1998 inHubei and Anhui provinces,respectively.Thetotal area planted was up to 112000ha,main-ly in the above two provinces.展开更多
Chunjiang Light & Textile Industry Group Co., Ltd. is among China’s largest cotton yarns production enterprises with multiple interests in spinning, fibre production
基金Supported by the National High Technology Research and Development Program ofChina (863 Program) (2010AA101301)the Program of Breeding and Experimental Demonstration of Super Hybrid Rice in China from Ministry of Agriculture+1 种基金the 0406 Program of Zhejiang Provincethe Fundamental Research Fund of China National RiceResearch Institute (2009RG001-5)~~
文摘[Objective] To breed and utilize the japonicalinous cytoplasmic male sterile （CMS） line Chunjiang 19A with wide compatibility and high outcrossing rate. [Method] Cbunjiang 16A was used as the female parent to cross with Indica-Japonica crossing material B125, which was used as male parent. Backcross breeding was contin- ued for consecutive generations to breed the CMS lines with wide compatibility and high outcrossing rate. [Result] Chunjiang 19A is a late medium Japonica CMS line with good fertility stability. The proportion of sterile plants and pollen abortion rates are 100% and the Cheng＇s index is 14. It is the japonicalinous CMS line with early flowering, partial stigma exsertion, high outcrossing rate, wide compatibility, high re- sistance to stripe disease and good combining ability. The hybrid rice combinations originated from Chunjiang 19A have strong tUlering ability, dominant heterosis, high resistance to stripe disease, great yield potential and good color change at mature stage. [Conclusion] The successful breeding of Chunjiang 19A laid good foundation for the breeding of Japonica hybrid rice and Indica-Japonica hybrid rice combinations with high seed production and dominant heterosis, showing a promising application prospect.
文摘Chunjiang 03,a late season japonica rice vari-ety developed by CNRRI in 1990,was derivedfrom the cross of Xiushui 11/T82-25.From1994 to 1996,it was tested in provincial riceadaptability trials and provincial rice produc-tivity trials in Hubei and Anhui provinces.Itreached a high yield with an average of 7500kg/ha in large-scale paddy field(see table),and released commercially in 1997 and 1998 inHubei and Anhui provinces,respectively.Thetotal area planted was up to 112000ha,main-ly in the above two provinces.
文摘Chunjiang Light & Textile Industry Group Co., Ltd. is among China’s largest cotton yarns production enterprises with multiple interests in spinning, fibre production
