Rice lodicule expansion regulation and control agent and use method thereof

Abstract

The invention discloses a rice lodicule expansion regulation and control agent and a use method thereof and belongs to the technical field of graminaceous crop floral organ lodicule expansion regulation and control. The rice lodicule expansion regulation and control agent comprises, by weight, 15-50% of fulvic acid, 1-5% of sodium nitroprusside and 45-80% of a filler. Through use of carbon source acidity of fulvic acid and fast biological function adjustment effects of sodium nitroprusside, lodicule water expansion is promoted. The filler can reduce instability of a sodium nitroprusside solution and is convenient for agricultural application. The rice lodicule expansion regulation and control agent substantially promotes rice lodicule water expansion and tight glume closure, makes flowering in advance, shortens a flowering phase, improves a grain filling rate and grain plumpness, reduces mature stage diseases such as false smut and green ear diseases and improves rice yield and quality. The rice lodicule expansion regulation and control agent is sprayed to the leaf surfaces, can be used simply and is convenient for operation.

Description

technical field [0001] The invention belongs to the technical field of expansion regulators for flower organ lodicules of gramineous crops, and specifically relates to an expansion regulator for rice lodicules and an application method thereof. Background technique [0002] The flowers of rice are arranged in panicles, usually called rice spikes. The rice spikes are composed of many spikelets, and the rice spikelets are composed of small branches (or spikelet handles), spikelets, and two glumes (equivalent to bracts). It consists of 3 small flowers; among them, the top flower is a fertile floret (spikelet), and the floret is sessile. ), lodicules (two), and stamens (six); while the other two lower lateral florets are severely degraded, showing only one lemma and its inner raised caruncle-like structure, the inner and outer palea pass through The interlocking grooves seal the internal organs of the flower, and a pair of lodicules are symmetrically grown on the top of the ric...

AI Technical Summary

Problems solved by technology

Studies have shown that carbon dioxide and its aqueous solution, warm water and high temperature, jasmonic acid and its methyl ester, salicylic acid and brassinosteroids, rubbing rice ears, etc. can induce rice flowering; and developed related technical measures for application in scientific research Work and production, in which carbon dioxide and warm water scalding are only used in rice scientific research, but not in field production; jasmonic acid and its methyl esters have potential for production and application, because they can only be extracted naturally and cannot be industrially produced. Large-scale production is still not possible, and it can only be applied in a small area for rice core materials and male sterile line breeding; in addition to pollination, the ear rushing of hybrid rice seed production also uses the mechanism of friction to promote glumes, but it is impossible Widely used in rice production

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