Watermelon pollen preservation method and watermelon pollen activation method

Abstract

The invention discloses a watermelon pollen preservation method. The watermelon pollen preservation method comprises the following steps: pre-cooling fresh pollen at first; then performing quick freezing treatment to greatly reduce the water content of pollen; and meanwhile, adding glycerinum in the preservation period to ensure that formation of ice crystals in pollen cells in the vacuum preservation period is reduced, so that breakage of the pollen cells is reduced, the vitality after freezing is improved, and the watermelon pollen preservation effect is improved. The invention also discloses an activation method for frozen-preserved pollen, unfreezing water absorption and radioactivation are performed on the frozen-preserved pollen, vitality maintaining of pollen is facilitated, a highfruit set rate can be kept after pollination, formation of a haploid can be induced after gamma ray radiation, and cultivation of a seedless watermelon is facilitated.

Description

technical field [0001] The invention belongs to the technical field of facility horticulture production, and in particular relates to a method for preserving watermelon pollen and a method for activating the corresponding pollen. Background technique [0002] In the natural environment, the lifespan of watermelon pollen is very short, usually only a few hours. In the afternoon of the flowering day, the corolla will wither, the stamens will shrink, and the pollen will lose its vitality. In sunny days and high temperatures, the lifespan of watermelon flowers and pollen will be shorter. However, if the flowering period encounters low temperature and rainy days, although the watermelon flowers can still open the next day, the male flower pollen has lost its vitality. Studies have shown that environmental conditions such as temperature and humidity are the main factors affecting the viability of plant pollen, and the conditions required by different plants vary greatly. [00...

AI Technical Summary

Problems solved by technology

However, if the flowering period encounters low temperature and rainy days, although the watermelon flowers can still open the next day, the male flower pollen has lost its vitality.