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Method for culturing temperature-sensitive high-grade early rice

A temperature-sensitive, planting method technology, applied in the field of early rice cultivation, can solve the problems of low enthusiasm for growing grain, low benefit, and affecting food security and stable production, and achieve the effect of improving planting efficiency

Inactive Publication Date: 2009-09-16
ZHEJIANG UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor quality and low benefit of early rice, the majority of rice farmers are generally not enthusiastic about growing grain, resulting in a sharp decline in the area of ​​early rice planting in the country year after year, which has seriously affected the stable production of my country's food security

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Breeding new high-quality early rice NTER07-1 and NTER07-3 from variety resources from various places

[0020] 537 japonica rice variety resources at home and abroad have been collected and introduced successively. In Hangzhou in the spring of 2002, conventional early rice was planted in the teaching farm of the school. Taking Jinzao 47, the main early rice variety planted in Zhejiang Province, as the control, the screening growth period was no later than 3 days as the selection standard, and 37 early-maturing rice materials were selected. In the spring of 2003, Hangzhou continued to plant conventional early rice. Using Jinzao 47 as a control, early-maturing rice with a growth period no later than 3 days was selected, and 33 early-maturing rice materials were selected. In Hangzhou in the summer of 2004, the temperature-sensitive early-maturing japonica rice was selected, and the shell was removed by a Japanese Satake sheller to check the appearance quality. 1...

Embodiment 2

[0021] Example 2: Breeding new high-quality early rice NewT08-1 from mutagenic mutant plants

[0022] Using Dellrose, a high-quality japonica rice variety from the United States, as a material, after 250Gy cobalt-60 radiation mutagenesis treatment, the second generation of mutagenesis containing more than 400,000 plants was constructed in 2004. In Hangzhou in the spring of 2004, single-planted conventional early rice was planted, and Jiayu 253, the main early rice variety planted in Zhejiang Province, was used as the control. The selection criteria were that the growth period was not later than 3 days of the control, and 13 early-maturing rice materials were selected. In the spring of 2005, Hangzhou continued to plant conventional early rice. Taking Jiayu 253 as a control, early-maturing rice with a growth period no later than 3 days was selected, and 9 early-maturing rice materials were selected. In Hangzhou in the summer of 2005, the temperature-sensitive early-maturing japo...

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PUM

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Abstract

The invention discloses a method for culturing temperature-sensitive high-grade early rice with the characteristic of high-grade late non-glutinous rice, including: collectingthe non-glutinous rice material, planting according to the early rice, selecting the premature rice material sensitive to the temperature, observing the appearance quality, determining the physical and chemical quality, selecting the rice material with transparency appearance, no chalkiness, good physical and chemical quality, performing stage planting, selecting the temperature non-sensitive rice material, evaluating the stability of transmissibility, obtaining the temperature non-sensitive type rice sensitive to the temperature in the generational period. The rice cultured according to the invention has the characteristic of high-grade late non-glutinous rice, is basically different from the traditional poor-quality early rice, has good quality and lower price; the planting efficiency is improved and a new way for the breeding of the high-grade early rice is provided in the breeding method.

Description

technical field [0001] The invention relates to a method for cultivating early rice, in particular to a method for cultivating temperature-sensitive high-quality early rice. Background technique [0002] In order to ensure my country's food security, early rice is not only the focus of my country's food production, but also the difficulty of food production, and its continuous and stable production is of strategic importance. At present, early indica rice is mainly used for production and promotion. Early japonica hybridized with early indica rice is also sensitive to temperature. When planted in the early season, it is still chalky and poor in appearance quality, and its eating quality is far from that of late japonica rice. Due to the poor quality and low benefit of early rice, the majority of rice farmers are generally not very enthusiastic about growing grain, resulting in a sharp decline in the area of ​​early rice planting in the country year after year, which has seri...

Claims

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Application Information

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IPC IPC(8): A01H1/04
Inventor 吴殿星舒小丽韩娟英周冠华
Owner ZHEJIANG UNIV
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