粳型矮秆陆稻株高遗传研究

STUDIES ON INHERITANCE OF PLANT HEIGHT ON INTERNAL AND ABROAD JAPONICA DWARF UPLANDRICE

对粳型矮秆陆稻与云南高秆陆稻测配，结果表明，ＩＲＡＴ２１６，１７７，１４４，１４０，１３４，伽念为多基因控制矮生性，农林２０，毫补卡×南高谷，俄爱夏×老造谷为主基因控制，其中，黎明对农林２０表现矮秆显性，黎明复等位，显性于毫补卡×南高谷，暂定毫补卡×南高谷为ｓｄ－１Ｘ２。俄爱夏×老造谷与黎明非等位，ＲｉｋｕｔｏＮｏｒｉｎ２１矮生性遗传有待深入研究，组合遗传力均较高，但多基因的材料较主基因的更稳定，

The inheritance of plant height was conducted.based on data of F_1,F_2,B_2,B_2 of in-ternal and abroad japonica dwarf upland rice crossed with tall Sanbangqishiluo and back-crossed with Reimei.IRAT26,177,144,140,134,Jianiail were polygenic,the tall wasdominant.Norin 20,Haobuka/Nangaogu,Eaiga/Laozaogu were major genic,Reimei wasshort dominant to Norin20, Reiniei was multipleallelic tall dominant to Haobuka/Nan-gaogu,then named as sd-1x_2.Eaiga/Laozaoge was nonallelic to sd-1. The heribilitywere all high. multiple-genic materials were steadier than major genes’ Japonica dwarfresource, multiple-phenotype of dwarfism,activity of sd-1 locus wfre disctissed.