Abstract:

This study explored the vitality changes of fresh pollen at room temperature, dried pollen at room temperature, and dried and refrigerated pollen of peppers, as well as the effects of three pollen treatments on field pollination, and apply them to the joint seed production of red pepper in Huaian to explore a pollen treatment scheme with relatively high seed production efficiency and purity. The results showed that the pollen vitality of peppers decreased with extension of treatment time, and fresh pollen at room temperature had the highest vitality. Although drying and refrigeration could effectively prolong storage time, pollen vitality was damaged, which was not conducive to improving seed production efficiency and purity. In actual production, the three types of pollen complement each other and support the seed production process together. However, priority should be given to using fresh pollen at room temperature and dried pollen at room temperature with high pollen vitality, and the use of dried and refrigerated pollen should be reduced. To ensure the pollen yield of the first two, planting time of the male parent can be advanced by 20 days compared with the female parent, and the planting proportion of can be increased to 1∶2.5.

Key words: pollen, red pepper in Huai'an, joint seed production