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Allogenic substance mixture for improving quality of rice suffering from low-temperature chilling damage at tillering phase and application of allogenic substance mixture

A technology of exogenous substances and compounding agents, applied in the direction of chemicals, applications, and pest control for biological control, which can solve the problems of rice quality decline and other issues

Inactive Publication Date: 2019-08-23
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of the decline in the quality of rice subjected to low-temperature chilling damage in the tillering stage, the present invention provides an exogenous substance compound agent for improving the quality of rice subjected to low-temperature chilling damage in the tillering stage and its application. The technical scheme adopted is as follows:

Method used

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  • Allogenic substance mixture for improving quality of rice suffering from low-temperature chilling damage at tillering phase and application of allogenic substance mixture
  • Allogenic substance mixture for improving quality of rice suffering from low-temperature chilling damage at tillering phase and application of allogenic substance mixture
  • Allogenic substance mixture for improving quality of rice suffering from low-temperature chilling damage at tillering phase and application of allogenic substance mixture

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Embodiment 1

[0017] 1. Test materials

[0018] Cold tolerance japonica rice varieties Dongnong 428 and Songjing 10 with similar growth periods but different cold tolerance. Among them: Dongnong 428 was approved in Heilongjiang in 2009, serial number: Heijiandao 2009007, parent source: Wuyoudao No. 1 (♀) Dongnong 423 (♂), breeding unit: Northeast Agricultural University variety type; Songjing 10 is Approved by Heilongjiang in 2005, No.: Heijiandao 2005005, parent source: Liaojing 5 (♀) Hejiang 20 (♂), breeding unit: The Second Rice Research Institute of Heilongjiang Academy of Agricultural Sciences, variety type: Japonica conventional Rice variety source: Liaojing 5 as the female parent and Hejiang 20 as the male parent were crossed and bred by pedigree method.

[0019] 2. Experimental design

[0020] 1. This experiment adopted a split-plot design, with exogenous substances as the main plot and rice varieties as the sub-plot. Sowing on April 20th, transplanting on May 25th, row spacing 3...

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Abstract

The invention discloses an allogenic substance mixture for improving the quality of rice suffering from low-temperature chilling damage at a tillering phase and application of the allogenic substancemixture and belongs to the technical field of rice planting. The allogenic substance mixture consists of proline, gamma-aminobutyric acid, salicylic acid and water, wherein concentrations of the components in the mixture are as follows: 3.24-4.86g / L of proline, 0.21-0.32g / L of gamma-aminobutyric acid, and 0.14-0.28g / L of salicylic acid. The invention furthermore provides application of the allogenic substance mixture for improving the quality of the rice suffering from low-temperature chilling damage at the tillering phase. By adopting the allogenic substance mixture, the quality of the rice suffering from low-temperature chilling damage at the tillering phase can be improved, influence of low-temperature chilling damage upon the quality of the rice at the tillering phase can be alleviated, the problem that the quality of the rice suffering from low-temperature chilling damage at the tillering phase is degraded can be solved, and the allogenic substance mixture is applicable to rice planting in cold regions.

Description

technical field [0001] The invention relates to an exogenous substance compound agent for improving the quality of rice subjected to low-temperature chilling damage in the tillering stage and an application thereof, belonging to the technical field of rice planting. Background technique [0002] The tillering stage of rice is a critical period for vegetative growth and determining the number of panicles. During this period, rice is sensitive to low temperature and prone to delayed chilling injury; the growth of tillers is inhibited, and the maximum number of tillers, the rate of tiller occurrence and extinction decrease, resulting in insufficient effective panicles; the total root length Significantly decreased, root activity decreased; leaf area index and high-efficiency leaf area ratio decreased significantly, dry matter accumulation decreased; physiological metabolism was slow, growth period was delayed, grain filling rate decreased, grain dry matter weight decreased, norm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/36A01N37/44A01N37/40A01P21/00A01G22/22A01G7/06
CPCA01G7/06A01N37/40A01N37/44A01N43/36A01G22/22
Inventor 贾琰赵宏伟王晋张妍瞿炤珺
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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