Plant growth regulator for greenhouse paddy, preparation method and application of plant growth regulator

A plant growth regulator, plant growth regulation technology, applied in the direction of plant growth regulators, plant growth regulators, botanical equipment and methods, etc., can solve problems such as low seed setting rate and thousand-grain weight, infection by diseases and insect pests, weak rice plants, etc. Achieve the effects of increasing seed setting rate and thousand-grain weight, increasing yield, and short and strong rice stalks

Active Publication Date: 2015-07-22
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, rice plants grown in greenhouses are often relatively weak, and unfavorable conditions such as excessive growth, few tillers, easy lodging, and infection by diseases and insect pests often occur, resulting in fewer ears and smaller ears, lower seed setting rate and thousand-grain weight, and ultimately lead to yield reduction

Method used

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  • Plant growth regulator for greenhouse paddy, preparation method and application of plant growth regulator
  • Plant growth regulator for greenhouse paddy, preparation method and application of plant growth regulator
  • Plant growth regulator for greenhouse paddy, preparation method and application of plant growth regulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 4.995 parts by mass of prohexadione calcium (active ingredient) and 0.005 parts by mass of brassinolide (active ingredient) were uniformly mixed to obtain an active ingredient mixture;

[0028] The wetting agent of 5 mass parts, the dispersant of 5 mass parts and the light calcium carbonate of pesticide carrier of 85 mass parts are mixed uniformly, obtain auxiliary material mixture;

[0029] The active ingredient mixture and the auxiliary material mixture are uniformly mixed to obtain a wettable powder for plant growth regulation.

Embodiment 2

[0031] The test site is in the greenhouse of the base of China Rice Research Institute (Fuyang City, Zhejiang Province), with a temperature of 30°C / 25°C (day / night) and natural light. The rice variety is Chunjiang 119 (conventional japonica variety). The test materials were sown on November 27, 2012, and transplanted on December 23, with 2 cuttings per cluster.

[0032] One week after transplanting of rice and at the peak tillering stage, it was applied twice, each mu was treated with different doses of the plant growth regulator prepared in Example 1 each time, the amount of medicinal solution was 45 liters / mu, and the leaves were sprayed. The main results are shown in Table 1.

[0033] Table 1 Greenhouse rice (transplanted rice) application yield-increasing effect

[0034]

[0035] *Community area = 7 square meters. Different letters in the same column indicate significant difference at the 5% level.

[0036] As can be seen from Table 1, under the test conditions, the ...

Embodiment 3

[0038] The test site is in the greenhouse of the base of China Rice Research Institute (Fuyang City, Zhejiang Province), with a temperature of 30°C / 25°C (day / night) and natural light. The rice variety is Chunjiang 119 (conventional japonica variety), and the test material was sown on November 25, 2013 (direct-directed rice).

[0039] Apply twice at 28 days after rice sowing and at the peak tillering stage, each acre is treated with the plant growth regulator provided in Example 1, and the amount of medicinal solution is 45 liters / mu, and the leaves are sprayed. The main results are shown in Table 2.

[0040] Table 2 The effect of increasing the yield of greenhouse rice (direct-directed rice) application

[0041]

[0042] *Community area = 7 square meters. Different letters in the same column indicate significant difference at the 5% level.

[0043] As can be seen from Table 2, under the test conditions, the plant growth regulator treatment provided in Example 1 showed a d...

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PUM

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Abstract

The invention provides a plant growth regulation composition for greenhouse paddy. The plant growth regulation composition is prepared from prohexadione calcium and brassinolide. The invention further provides a plant growth regulator for the greenhouse paddy. The plant growth regulator is prepared from prohexadione calcium, brassinolide and an auxiliary material. The invention further provides a preparation and application of the plant growth regulator for the greenhouse paddy. According to the invention, prohexadione calcium and brassinolide are combined to be used so as to play the synergistic interaction function, promote paddy tillering, enable the paddy stalks to be short and strong, increase chlorophyll content in the leaves, and increase the yield of the paddy; indicated by the experimental results, the plant growth regulator provided by the invention plays the stunt effect on the greenhouse paddy, shows up the increased trend on spike number, maturing rate and thousand seed weight per cluster of paddy, and can remarkably increase the yield of paddy.

Description

technical field [0001] The invention belongs to the technical field of plant growth regulators, and in particular relates to a plant growth regulator for greenhouse rice, a preparation method and application thereof. Background technique [0002] In order to speed up the progress of research, especially the speed of rice breeding, the greenhouse cultivation of rice has developed rapidly in recent years. Planting rice in a greenhouse can take advantage of the longer period from winter to spring, and add rice materials for breeding or seed production. However, rice plants grown in greenhouses are often relatively weak, and unfavorable conditions such as leggy growth, few tillers, easy lodging, and infection by diseases and insect pests often occur, resulting in fewer ears and smaller ears, lower seed setting rate and thousand-grain weight, and ultimately lead to yield reduction. Therefore, how to cultivate a robust group of greenhouse rice has become a bottleneck that plagues...

Claims

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Application Information

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IPC IPC(8): A01N43/22A01P21/00A01N37/42
Inventor 符冠富陈婷婷陶龙兴杨永杰张彩霞杨雪芹赵霞
Owner CHINA NAT RICE RES INST
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