Induced Mutation for Developing Mutant Rice Lines Tolerant to the Parasitic Weed Striga asiatica (L.) Kuntze

• 作者: Abdelbagi Ali Ghanim Mukhtar Alice Andrianjaka Berthe Rasoamampionona Harimialimalala Jhonny Rabefiraisana Ljupcho Jankuloski Lydia Razafinirina Noronirina Victorine Rakotoarisoa Xavier Roland Rakotonjanahary
• 来源期刊: 环境科学与工程:A
• 学科: 农学
• 关键词: Induced mutation MUTANT TOLERANT LINES RICE (Oryza sativa L.) PARASITIC weed STRIGA asiatica (L.) Kuntze.
• 年，卷（期）: hjkxygc-a_2019,（5）
• 页码范围: 181-192
• 页数: 12页
• 分类号: S51

摘要

This work aims to screen mutant rice lines tolerant to Striga asiatica.Two rainfed sensitive rice varieties B22 and F154 were used.Plants survival rates of the two parents were significantly lower respectively(9.74a and 11.83a)than those of mutant lines(55.36c to 74.36b);Striga plants emergence/pot were significantly higher for the parents(13.96c and14.89c)compared to the mutants(0.12a to 1.5b);the infection rate of parents(7.37b;7.86b)was higher compared to the mutants(2.27a to 2.74a);fertility rate/plant of parents was lower(20.98%b;22.29%b)but much higher than mutants(72.19%b to 78.35%b);the average panicle number/plant of parents was significantly lower(0.5a;1a)than those of mutants(1.5b to 2.4bc)and the 100 g grain weight of parents are lower(2.35a;2.56a)than those of mutants(3.19b to 3.23b).The culture of those mutant lines may increase rice production and contribute to enhancing food security in Madagascar.