Wheat seed retention relationship how to do a good job of wheat seed retention in next year's harvest

The selection and retention of wheat seeds is related to the wheat harvest in the next year. If the wheat varieties are not removed, the degradation of wheat varieties will be aggravated and the service life of fine wheat varieties will be shortened. In order to improve the purity of wheat seeds and maintain good seed quality, the selection and retention of wheat seeds must be done well before harvest.

Wheat seed

1. Improve the purity of improved wheat varieties by removing impurity and inferior quality.

After wheat heading, the characteristics of wheat varieties will gradually appear, and the fields used for keeping seeds will be removed twice at heading stage and a few days before harvest. According to the plant height, spike type awn, length, glume color, grain color, disease and insect resistance of the selected wheat varieties, it was found that after the miscellaneous spikes were found, they were removed from the roots to prevent the missing spikelets. Brome grass, in particular, should be strictly removed.

2. Timely threshing and harvest to prevent mechanical mixing.

Early harvest and threshing, high water content and high temperature exposure for a long time can easily lead to low germination rate of wheat seeds. The seed fields reserved for seed should be harvested mechanically from the immature stage to the full ripening stage. When harvesting, you can first use the harvester to harvest a small part of the wheat, and then put it into the warehouse, and then the harvested wheat can be reserved for seed use. When drying, to clean the drying field, different varieties of wheat should be relatively isolated, preferably one at a time, strictly prevent threshing and mixing in the drying process. Mechanical mixing can be avoided.

3. Scientific storage.

There are many ways to store wheat seeds. Adjust measures to local conditions and choose flexibly. It can be stored in many containers such as urn, granary, woven bag and so on. When using an urn for storage, fill the urn with wheat seeds and cover the surface with dry plant ash about 20 cm thick, then cover and seal it. Because the plant ash has hygroscopicity, it can ensure the safe storage of wheat seeds, and can also be stored in nylon woven bags. The nylon woven bags full of wheat seeds are piled in a ventilated and dry place and kept at a distance from the wall to prevent rats, insects and moisture.