27份番茄种质资源种子萌发期耐低温性评价

Evaluation of Low Temperature Resistance of 27 Tomato Germplasm Resources during Seed Germination

以27份不同番茄资源为供试材料,测定常温(25℃)和低温(15℃)下种子的发芽率、发芽势、发芽指数、发芽受损率等指标,探讨低温对不同番茄资源种子萌发期的影响,以期为鉴定和培育耐低温番茄品种提供参考。根据隶属函数值的大小可得出不同番茄材料的耐低温性,4个耐低温性强的番茄资源为樱桃番茄85号、109号、88-2号、大番茄60号。

Taking 27 different tomato resources as test materials,the germination rate,germination potential,germination index and germination damage rate of seeds under normal temperature(25℃)and low temperature(15℃)were measured to investigate the seed germination of different tomato resources at low temperature,in order to provide a reference for the identification and cultivation of low temperature tomato varieties.According to the size of the membership function,the low temperature resistance of different tomato materials can be obtained.Four tomato resources with low temperature tolerance were cherry tomatoes 85,109,88-2 and large tomato 60.