Abstract: The effects of pollen retention time on tomato fruit yield and seed volume were studied under different storage temperatures to explore the storage capacity of tomato pollen under different storage conditions. The resuhs showed that the rate of tomato fruit and the number of single-fruit seeds decreased with the increase of pollen storage time, and the storage temperature was reduced eftectively. In Baotou city agricuhural science institute, CM966 and CM196 tomato varieties were bred as experimental materials.At the room temperature 20 -C , the effective storage period was 11 days, at the low temperature 5 ℃, the eftective storage period was 15 days, at cold storage -1℃, the effective storage period was 31 days, and frozen at -18℃, and the eftective storage period was 31 days. Correlation analysis showed that the tomato pollen stored at 5 ℃and - 18℃ had velT significant negative con＇elations for average fruit-set rate and average single fruit grain number. Con＇elation between grain number and average fruit-set rate was extremely significantly positive.

Key words: Tomato pollen;Storage condition;Pollination effect;Storage period