Screening method for selenium-enriched rice variety

Abstract

The invention belongs to the technical field of screening of agricultural germplasm resources, and particularly relates to a screening method for a selenium-enriched rice variety. According to the method, preliminary screening is performed at first through indoor cultivation, so that the blindness of the subsequent field screening test is reduced; South Henan black glutinous rice is used as a contrast material, so that the screening process is simple and feasible. In the indoor screening process, a selenium-enriched culture medium is used to provide a uniform and stable selenium source for rice seedlings; the accuracy of variety screening can be substantially improved; seeds are started to be cultivated in the initial stage of germination and growth; nutrition is mainly supplied by the seeds to the seedlings; the culture medium is relatively easy to prepare, and the screening method is easy to apply.

Description

technical field

[0001] The invention belongs to the technical field of screening agricultural germplasm resources, and in particular relates to a screening method for selenium-enriched rice varieties. Background technique

[0002] Selenium (Se), as an important trace element in the ecological environment, has various functions such as anti-aging, anti-cancer and detoxification, and has been designated by the World Health Organization and the Chinese Medical Association as a must-supplement after iodine and zinc in the 21st century. The third largest micronutrient health care element. The safe selenium intake recommended by the Health Institute of the Chinese Center for Preventive Medicine is 40-240 μg / person / day. According to the survey report, the current selenium intake of adults is about 26.63 μg / day, so it is necessary to further increase the selenium intake.

[0003] Rice is the main food crop in my country. It is an ideal way to supplement selenium by increasing the s...

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