Rice seedling culture method for improving cold resistance of double-cropping early-season rice machine-transplanted seedlings and application of method

A technology of machine transplanting and cold resistance, applied in the field of rice seedling raising, can solve the problems that the application effect has not been reported yet, and achieve the effects of improving the plant's ability to resist low temperature, increasing the content of soluble sugar, and strong activity of key enzymes

Inactive Publication Date: 2019-12-31
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, people mainly use fiber oligosaccharides as new anima...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] When soaking seeds, use fiber oligosaccharides for seed soaking treatment, put the selected seeds into a solution of fiber oligosaccharides with a mass concentration of 40 mg / kg, stir evenly, and place them for 16 hours; take out the seeds, rinse them with clean water, and then soak them in clean water 24h.

Embodiment 2

[0032] When soaking the seeds, use fiber oligosaccharides for seed soaking treatment, put the selected seeds into a solution of fiber oligosaccharides with a mass concentration of 80 mg / kg, stir evenly, and place them for 10 hours; take out the seeds, rinse them with clean water, and then soak them in clean water 48h.

Embodiment 3

[0034] When soaking seeds, use fiber oligosaccharides for seed soaking treatment, put the selected seeds into a solution of fiber oligosaccharides with a mass concentration of 60 mg / kg, stir evenly, and place them for 12 hours; take out the seeds, rinse them with clean water, and then soak them in clean water 36h.

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PUM

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Abstract

The invention discloses a rice seedling culture method for improving cold resistance of double-cropping early-season rice machine-transplanted seedlings, and relates to rice seedling culture techniques. The method includes the steps: seed drying; seed selecting; seed soaking; sprouting; spreading and bud exercising; sowing and rice seedling culture; seedling management and the like. According to the method, seeds are soaked by cello-oligosaccharide, so that plant growth is facilitated, root system activity is improved, the content of soluble sugar of leaves is increased, and low-temperature resistance of plants is improved. According to the method, the germination rate and the seedling survival percentage of the rice seeds can be increased, the quality of the seedlings is improved, seedling age elasticity and stem base width are remarkably increased, the method is suitable for large-scale mechanized production, cold resistance and antiretroviral activity of the rice seedlings are remarkably enhanced, so that the problem of rotting of seeds and roots caused by harsh climate factors such as southern late spring coldness can be resisted, and technical support is provided for yield guarantee, disaster reduction and mechanized production of southern early-season rice.

Description

technical field [0001] The invention relates to rice seedling raising technology, in particular to a seedling raising method for improving the cold resistance of double-cropping early rice machine-transplanted seedlings and an application thereof. Background technique [0002] Hunan is a major double-cropping rice production area in the country and an important grain production base. Rice is the main food crop in the province, and its perennial sowing area and output rank first in the country. Late spring cold is the most important natural meteorological disaster of double-cropping early rice in southern China, and it is the main cause of rotten seedlings of early rice in southern China, posing a serious threat to rice production and causing huge economic losses. In addition, mechanized production is more and more widely used in the agricultural field, and machine transplanting has become one of the main methods of rice transplanting. However, the current seedling raising t...

Claims

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Application Information

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IPC IPC(8): A01G22/22
CPCA01G22/22
Inventor 龙攀傅志强吕国华唐志伟徐莹郭慧娟
Owner HUNAN AGRICULTURAL UNIV
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