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《HYBRID RICE》 1995-01
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Breeding of Quality Honglian-type CMS Line Zhuxian A in Rice

Liu Kangping ;Zhang Jianzhong;Yuan Yawen;Jiang Shihe(Zhanjiang Junior Agricultural College of Guangdong Province,524088)  
Zhuxian A(called Zhu A for short ), developed from the cross and back-cross of Congguang4l A (Honglian-type CMS line) and Zhuxia, a breeding line selected from the multicross of Shuangzhangy-ou(fine quality variety )/S 7539(wild rice with multiresistance )Guxian(strongly resistant to bacterialblight), with Zhuxian as the recurrent parent, is a quality Honglian-type CMS line possessing stable sterili-ty, good flowering behavior, high outcrossing rate and good combining ability in grain quality traits. By wayof Zhu A, the combinations of Zhuyou 61 and Zhuyou Qing etc. have been developed, and they are of finegrain quality, high yielding, and good disease resistance. In l992, they yielded 7. 50~8. 40 t/ha grown asearly season crop,3.4%~10.7%higher than the ckeck Shanyou 63 ;and yielded 6. 90~7. 05 t/ha grownas late season crop,2.5%~5.4% higher than the check Shanyou 64. The grain quality of these combina-tions is all above the second class criteria of fine quality rice.
【CateGory Index】: S511.103
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