Studies on Heterosis and Inheritance of Fruit Firmness in Genetic Male Sterile Tomato —‘Da107’
WANG Xian-yu，YU Fen-di，LIANG Cong-yao，Chen wei，DU Yong-cheng，Masaharu Masuda，Kenji MURAKAMI
Agricultural College，Guangxi University，Nanning，Guangxi 530004，China；Institute of Vegetables and Flowers，Chinese Academy of Agricultural Sciences，Beijing 100081，China；OKAYAMA University 700-8530，Japan
Abstract：This experiment took common parent ‘Da107’（a thermosensitive genetic male sterility line）and 6 tomato（Lycopersicon esculentum Mill.）cross combination obtained from‘Da107’as female parent hybridized with 6 inbred lines（‘Dongsheng No.3’,‘Niufanqie’,‘Meilisha’, 1439, A3, as well as 12 respectively）as male parent as trial materials. Fruit firmness was determined with fruit firmness tester type GY-1 to estimate the parameters of heterosis, combining ability of fruit firmness, heritability and so on. The constant parent regression of fruit firmness was analyzed. The results indicated that fruit firmness showed negative heterosis among the 6 cross combination, general combining ability and special combining ability of fruit firmness were 58.56 % and 41.44 %, respectively. The broad-sense heritability and narrow-sense heritability were 52.76 % and 50.31 %, respectively. And the constant parent correlation coefficient was 0.847 9, reached significant level.‘Da107’,‘Dongsheng No.3’,‘Meilisha’and‘Niufanqie’were advantageous to breeding as parents. Fruit firmness of‘Da107’בNiufanqie’hybrid combinations was the highest.
王先裕;于分弟;梁聪耀;陈伟;杜永臣;桝田正治;村上賢治. 番茄核雄性不育系大107果实硬度杂种优势及遗传效应的研究[J]. 中国蔬菜, 2010, 1(20): 27-31.
WANG Xian-yu;YU Fen-di;LIANG Cong-yao;Chen wei;DU Yong-cheng;Masaharu Masuda;Kenji MURAKAMI. Studies on Heterosis and Inheritance of Fruit Firmness in Genetic Male Sterile Tomato —‘Da107’. , 2010, 1(20): 27-31.
