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Simplified cultivation method of high-temperature-resistant rice

A cultivation method and high temperature resistance technology, applied in rice cultivation, botany equipment and methods, seed immunization, etc., can solve problems such as adverse effects, affecting seed setting rate and yield, rice damage, etc., to achieve reduction of greenhouse gas emissions and good yield benefit, the effect of reducing the harm of high temperature

Inactive Publication Date: 2019-09-27
RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when encountering high temperature above 35°C, it will also have an adverse effect on the fertilization process, and the empty shell rate will increase greatly
Many studies have shown that when rice encounters high temperature during the flowering period, it hinders pollen maturation, anther cracking, pollen germination on the stigma, and pollen tube elongation. The resulting infertility is the most serious damage to rice. Sensitive period, especially high temperature stress on the day of flowering, can easily induce infertility of florets and cause fertilization disorders, seriously affecting seed setting rate and yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A light and simplified cultivation method for high temperature resistant rice, comprising the steps of:

[0028] (1) Selection of high-temperature-resistant varieties: select high-yield ratooning rice varieties with strong high-temperature resistance, strong drought resistance, and adaptability to climate change conditions in single-season indica rice regions, with seed purity not lower than 99% and germination rate not lower than 90%;

[0029] (2) Seed pretreatment: first immerse the seeds in concentrated brine for 2 hours, and carry out sterilization treatment; after removing the seeds, immerse the seeds in the multivitamin solution for 2.5 hours at 26°C and a pressure of 0.1MPa, and the raw materials in the multivitamin solution The mass ratio is vitamin A: vitamin B: vitamin D: vitamin E: deionized water=1:3:2:5:1000, containing multiple vitamins in the multivitamin solution can improve the anti-oxidation and stress resistance of seeds, and then The seeds are subjec...

Embodiment 2

[0038] A light and simplified cultivation method for high temperature resistant rice, comprising the steps of:

[0039] (1) Selection of high-temperature-resistant varieties: select high-yield ratooning rice varieties with strong high-temperature resistance, strong drought resistance, and adaptability to climate change conditions in single-season indica rice regions, with seed purity not lower than 99% and germination rate not lower than 90%;

[0040] (2) Seed pretreatment: first immerse the seeds in concentrated brine for 3 hours, and carry out sterilizing treatment; after removing the seeds, immerse them in the multivitamin solution for 4 hours at 30°C and a pressure of 0.2MPa. The mass ratio is vitamin A: vitamin B: vitamin D: vitamin E: deionized water=5:6:4:15:1000, containing multiple vitamins in the multivitamin solution can improve the anti-oxidation and stress resistance of seeds, and then The seeds are subjected to magnetized breeding, the temperature is 32°C, the vo...

Embodiment 3

[0049] A light and simplified cultivation method for high temperature resistant rice, comprising the steps of:

[0050] (1) Selection of high-temperature-resistant varieties: select high-yield ratooning rice varieties with strong high-temperature resistance, strong drought resistance, and adaptability to climate change conditions in single-season indica rice regions, with seed purity not lower than 99% and germination rate not lower than 90%;

[0051] (2) Seed pretreatment: first immerse the seeds in concentrated brine for 2.5 hours, and carry out sterilization treatment; after removing the seeds, immerse the seeds in the multivitamin solution for 3.5 hours at 28°C and a pressure of 0.1MPa, and the raw materials in the multivitamin solution The mass ratio is vitamin A:vitamin B:vitamin D:vitamin E:deionized water=3:4:2-4:10:1000, the multivitamins contained in the multivitamin solution can improve the anti-oxidation and stress resistance of seeds , and then carry out magnetize...

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Abstract

The invention discloses a simplified cultivation method of high-temperature-resistant rice. The method is characterized by comprising the following steps of high-temperature-resistant variety selection, seed preprocessing, base selection, sowing period adjustment, strong seedling cultivating and transplanting, straw application, balancing of fertilization and pest prevention. According to the simplified cultivation method of high-temperature-resistant rice, simplified cultivation technical measures of reducing high-temperature damage, increasing the yield, improving the rice quality and reducing greenhouse gas emission are disclosed, and the method has excellent yield benefits, quality benefits and environmental benefits. A rice variety with strong high-temperature resistance is selected, and young ear development and heading periods avoid the hot time period of high-temperature droughts so that the loss caused by high-temperature heat damage to rice can be reduced; by reasonably adjusting the sowing period, the high temperature stress in the flowering phase of the rice is avoided, and adverse effects caused by high-temperature weather are reduced.

Description

technical field [0001] The invention relates to the field of agricultural planting, in particular to a light and simplified cultivation method for high temperature resistant rice. Background technique [0002] The Yangtze River Basin in my country is an important rice planting area, and a large part of the flowering and filling period of rice planted every year coincides with the high temperature season in midsummer. The period of high temperature coincides with the flowering and filling period of rice. The high temperature and heat damage often lead to high empty grain rate and decreased seed setting rate of rice, resulting in poor quality of rice, reduced yield and reduced benefit, affecting farmers' enthusiasm for production and rice production. negatively impact food security. [0003] The heat damage caused by high temperature to rice is closely related to the growth period of rice, that is to say, heat damage can only occur when the high temperature occurrence period ...

Claims

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Application Information

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IPC IPC(8): A01G22/22A01C1/00A01C1/08A01H1/06
CPCA01C1/00A01C1/08A01H1/06A01G22/22
Inventor 滕斌周永进习敏许有尊吴文革孙雪源
Owner RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
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