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通过对10个不同番茄材料,苗期3个不同阶段进行10℃/5℃亚低温处理,观察番茄第一、第二花序结果情况,对不同的番茄材料进行耐低温能力评价,探讨亚低温对番茄生殖生长的影响。结果表明,在2-3,5-6,7-8片真叶展开期遭遇10℃/5℃低温,番茄第一花序的畸形果明显增多,而且座果率明显下降。基因型也是影响番茄座果率的一个重要因子。不同材料对低温的反应是不同。10℃/5℃低温处理后,9179座果率明显下降,9178畸形果率明显增高,202则同时表现为座果率下降,畸形果增加。在10个材料中93170-3的耐低温综合能力最强,202耐低温综合能力最弱。
The first and second inflorescences of tomato were observed under 10 ℃ / 5 ℃ hypoxia temperature in 10 different stages of 10 different tomato materials and seedlings. The cold tolerance of different tomato materials was evaluated, Effect of tomato reproductive growth. The results showed that at the temperature of 10 ℃ / 5 ℃, the first inflorescences of tomatoes suffered a significant increase at the 2-3,5-6,7-8 true leaf stage, and the fruit set rate decreased significantly. Genotype is also an important factor affecting tomato fruit set rate. The reaction of different materials to low temperature is different. After 10 ℃ / 5 ℃ low temperature treatment, the fruit rate of 9179 decreased significantly, the rate of abnormal fruit of 9178 increased obviously, while the fruit rate decreased and the abnormal fruit increased. In 10 materials, 93170-3 has the strongest low temperature comprehensive ability and 202 low temperature comprehensive ability is the weakest.