How to choose to keep seeds during wheat harvest?

How to choose to keep seeds during wheat harvest? Please introduce the wheat seed selection and retention work can refer to the following methods: first, single plant (spike) selection: that is, the selection of improved varieties with typical characteristics of this variety, high purity and strong seed quality. This method should be used for those with small amount of seed selection and seed use. Select the plant (ear) with variety characteristics in the seed field or field two to three days before harvest, carefully identify the ear type, leaf type, glume, grain color, etc., cut off the wheat ear with large grains, no diseases and insect pests and moderate plant height, and bring it back to the room for re-selection. The amount of panicle selection depends on the planting needs of next year. Then mix and thresh, strictly prevent it from being mixed with other varieties, and save it for next year. Second, film selection: that is, Daejeon gets rid of miscellaneous and inferior products. Before wheat harvest, in the seed fields or fields with high purity, neat growth and light diseases and insect pests, the bad plants of weak plants, overhigh dwarf plants, shrunken spikelets and spikelets without the characteristics of this variety were pulled out of the field for 3 times, and the seeds were harvested and stored for field production in the next year. Wheat is harvested at the right time to achieve a bumper harvest. The process of wheat grain development can be divided into four stages: formation stage, milk maturity stage, wax maturity stage and full maturity stage. The timely harvest of wheat is in the late stage of wax ripening. In this period, the accumulation of dry matter in wheat grain reached the peak, the quality was good, the yield was the highest, and the physiology was completely mature, which was the most suitable period for harvest. This is the reason why farmers say, "well-done, 100% harvest; 10% maturity, 10% loss." The timely harvest of wheat is the determination of the later stage of wax. at this time, the internodes under the spike are golden, the grains have all turned yellow, and the interior is waxy. The dry-wet ratio method can also be used, that is, the ratio of dry weight to wet weight is 1: 1.3 as an index to determine the harvest. Click to get more wheat planting technology click to get more grain planting technology