Cress seed selecting method

Abstract

The invention discloses a cress seed selecting method, which comprises the following steps of: first, sifting harvested cress seeds to remove tiny and thick impurities, mixing the seeds with river sand for one month, and separating the seeds from the sand through water; floating the separated seeds for one or two days, and airing the seeds taken out of water; grading the aired seeds by winnowing, and simultaneously, removing part of impurities and seeds with poor quality; and finally, manually pressing the seeds which are classified by winnowing to further remove impurities. The method adopts the procedures of storing with san, floating on water and pressing and combines traditional methods of sifting and winnowing. Therefore, not only are the cress seeds selected effectively, but also the way of storing seeds in sand is added to the selection process of the cress seeds. In this way, two effects are realized because the seed selection and the relieve of seed dormancy can be finished in a combined way, and a large quantity of cress seeds can be selected within a short time. The method overcomes the difficulty of heavy workload in a traditional way of selecting seeds manually, and can be used for realizing the goal of breeding cress seeds in an industrialized way.

Description

technical field [0001] The invention relates to the technical field of agricultural agronomy, in particular to a method for selecting cress seeds. Background technique [0002] Cress is a perennial aquatic perennial herb of the Umbelliferae family. Cress is native to eastern Asia, and China is one of its origins. China has used the tender stems, leaves and petioles of cress for food since ancient times. It is mainly distributed in the Yangtze River Basin and the provinces and autonomous regions to the south, among which Jiangsu, Zhejiang, Hubei, Jiangxi, Anhui, Yunnan, Guizhou and Guangzhou have relatively large production areas. The national cultivation area is 25000hm 2 Left and right, there are shallow water cultivation, deep water cultivation and dry field modification cultivation in cultivation methods. In addition to China, cress is abundant in China, Japan, South Korea, North Korea, Indonesia and other East Asian and Southeast Asian countries also have relatively l...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of low production efficiency and high cost caused by manual sorting and removal of impurities in the harvested cress seeds in the prior art, and provide a simple and easy cress seed selection method