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Application of ethanol in promoting plant growth

A technology for promoting plant growth and ethanol, applied in the directions of plant growth regulators, plant growth regulators, applications, etc., can solve the problems of inconvenient use, unsuitable storage for a long time, time-consuming and laborious, etc., to improve photosynthetic rate, promote plant growth, Easy-to-use effects

Inactive Publication Date: 2012-11-21
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But some plant growth promoters are easy to decompose and degrade, such as indole acetic acid, which is easy to decompose when exposed to light. Low toxicity to humans and animals, such as anti-fall acid; some are moderately toxic, such as 2,4-D; these plant growth promoters need to be familiar with safety regulations and take protective measures during use

Method used

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  • Application of ethanol in promoting plant growth
  • Application of ethanol in promoting plant growth
  • Application of ethanol in promoting plant growth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: the application of the ethanol treatment agent that promotes the growth of rape comprises the steps:

[0029] (1) Use absolute ethanol to prepare an ethanol solution with a concentration of 5% by volume;

[0030] (2) In this experiment, the Brassica napus varieties Yuyou No. 2, Qinyou No. 2, Qianyou No. 2 and A35 were used as test materials; rape seeds were sown in seedling trays, and after two weeks of cultivation, seedlings of uniform size were selected Carry out pot culture, each pot is equipped with humus and perlite (mixing ratio is 1:2);

[0031] (3) After the potted plants continue to be cultivated for one week, spray evenly on the leaves of rapeseed with 5% ethanol solution, and spray 5% (v / v) At the same time, set up a control group (CK)---spray 20ml of distilled water; the time of spraying is twice a week, once every Monday and Thursday at 18 o'clock in the afternoon; after spraying, cover it with plastic cloth overnight , to prevent the volati...

Embodiment 2

[0032] Embodiment 2: the mensuration of the rape photosynthetic parameter of foliar application treatment agent, comprises the steps:

[0033] A. Use the American CID CI-340 handheld photosynthesis measurement system to measure the net photosynthetic rate of the third leaf (the third leaf counted from top to bottom of the plant). Measure 3-5 leaves for each experimental group, whichever is the best average value;

[0034] B, with U.S. CID CI-340 hand-held photosynthesis measurement system, measure the transpiration rate of the 3rd leaf, each experimental group measures 3-5 blade, gets its average value;

[0035] C, with U.S. CID CI-340 hand-held photosynthesis measuring system, measure the stomatal conductance of the 3rd leaf, each experimental group measures 3-5 blades, gets its average value;

[0036] D. Use the American CID CI-340 handheld photosynthesis measurement system to measure the intercellular CO of the third leaf 2 Concentration, each experimental group measur...

Embodiment 3

[0043] Embodiment 3: the mensuration of the rape chlorophyll content of leaf application treatment agent, comprises the steps:

[0044] A. Take the third leaf of different varieties of rapeseed, weigh the weight of the leaf, cut it into several sections, put it into 25ml of acetone and ethanol extract (acetone V:ethanol V=1:1), extract at room temperature and dark for 24 hours ;

[0045] B. Measure the absorbance value of the extract at 645nm and 663nm (A);

[0046] C. Calculate the content of chlorophyll according to the following formula:

[0047] Chlorophyll a content (mg.g -1 ) = (12.7×A663-2.59×A645)×V / (M×1000);

[0048] Chlorophyll b content (mg.g -1 ) = (22.9×A645-4.67×A663)×V / (M×1000);

[0049] Total chlorophyll content (mg.g -1 )=(20.3×A645+8.04×A663)×V / (M×1000).

[0050]Among them, M is the fresh weight of the leaves, and the unit is g; CK is the control group—sprayed with distilled water. (See Figure 5-7 )

[0051] Figure 5 Show, the treatment group o...

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Abstract

The invention discloses a new application of ethanol, namely, an application of ethanol as a treating agent in promoting plant growth, wherein when used, 2-8% of volume percent of ethanol solution is used for spraying leaves of plant seedlings growing for 2-3 weeks twice a week; continuously treating for 4-8 weeks, and observing the growth index of the plant; it is shown by experimental result that the photosynthesis ability of the plant seedlings after being treated by ethanol is strengthened, and the chlorophyll content, the net photosynthetic rate, the transpiration rate, the stomatal conductance and the intercellular CO2 concentration are increased notably; the ethanol treating agent can promote plant growth, and increase accumulation of the plant biomass (dry weight of overground part and dry weight of underground part).

Description

technical field [0001] The invention belongs to the field of promoting plant growth, and in particular relates to the new application of organic chemical reagent ethanol in promoting plant growth. Background technique [0002] In recent years, due to the large-scale application of quick-acting nitrogen fertilizers and the irrational use of various compound fertilizers, soil fertility has decreased and cultivated land resources have been destroyed, which has had a negative impact on the sustainable development of agriculture. For example, rape is one of the widely planted oil crops. , rapeseed oil accounts for more than 50% of the oil produced by domestic oil crops, and is the largest source of domestic edible vegetable oil. At the same time, the self-sufficiency rate of edible vegetable oil in my country is closely related to people's lives, and the unreasonable use of compound fertilizers leads to a decrease in the quality of oil crops. Therefore, it is of great significanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N31/02A01P21/00
Inventor 陈丽梅赵艳
Owner KUNMING UNIV OF SCI & TECH
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