METHOD FOR IMPROVING YIELD OF SELENIUM-ENRICHED RICE BY INCREASING TILLERS

Title:

METHOD FOR IMPROVING YIELD OF SELENIUM-ENRICHED RICE BY INCREASING TILLERS

Document Type and Number:

WIPO Patent Application WO/2023/202729

Kind Code:

A1

Abstract:

Disclosed in the present invention is a method for improving the yield of selenium-enriched rice by means of increasing tillers, which method belongs to the field of nanotechnology in agriculture. The method of the present invention comprises applying a spherical Se NMs solution to leaves in a seedling stage of rice, wherein the size of spherical Se NMs is 10-90 nm, the hydration radius thereof is 160-200 nm, the surface charge thereof is -15 to -18 mV, and the purity thereof is 95% or more; the seedling stage of rice refers to rice reaching the stage of "three leaves and one heart"; and the spherical Se NMs solution is a spherical Se NMs aqueous solution with a concentration of 1-3 mg/L. The method of the present invention can significantly improve the rhizosphere microbial community of rice and increase root exudates, change the soil environment and promote the absorption of root nutrients; significantly increases the Se content in rice; can regulate and control the synthesis of gibberellin in rice, and increase the up-expression of tillering genes; significantly increases the number of tillers of rice plants; and increases the yield of the rice.

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Inventors:

WANG ZHENYU (CN)
WANG CHUANXI (CN)
YUE LE (CN)
CAO XUESONG (CN)

Application Number:

PCT/CN2023/100679

Publication Date:

October 26, 2023

Filing Date:

June 16, 2023

Export Citation:

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Assignee:

UNIV JIANGNAN (CN)

International Classes:

A01G22/22; A01C21/00

Foreign References:

CN114208614A	2022-03-22
CN109691369A	2019-04-30
CN112010271A	2020-12-01
CN114711112A	2022-07-08
CN107173138A	2017-09-19
CN112997824A	2021-06-22
US20160289129A1	2016-10-06
AU2020102215A4	2020-10-22

Attorney, Agent or Firm:

HARBIN SHINEIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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