空间诱变番茄新品种“航遗2号”的选育

"Hangyi-2":a New Tomato Variety Bred by Space Mutation

“航遗2号”番茄是用俄罗斯和平号空间站上搭载6年的番茄自交系俄MNP-1种子,在我国地面种植自交选育后获得的一个番茄新品种。和对照品种相比,“航遗2号”番茄第一花序着生节位少,单果重增加,果型变为扁圆,开花期、果实成熟期提前,果实干物质含量增加,并且“航遗2号”番茄生长结实习性具有一致性和稳定性。

＂Hangyi-2＂ is a new tomato variety, which is bred from seeds of Russian selfing line MNP-1 carried by Russian MIR space station. Compared with the ground control, the segment of the first inflorescence of ＂Hangyi-2＂ is less, per fruit weight of ＂Hangyi-2＂ is increased, fruit shape of ＂Hangyi-2＂ become oblate, blooming period and fruit ripe period of ＂Hangyi-2＂ become advance, and the content of dry matter in fruit of ＂Hangyi-2＂ increases. Growth and bearing habit of ＂Hangyi-2＂ is characteristic of consistency and stability.