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Seed production method of 6-liang optimal No. 2 hybrid middle-season indica rice combination

A technology of indica rice and seed production, applied in botany equipment and methods, rice cultivation, plant genetic improvement, etc., can solve the problems of low yield, low comparative benefit, low enthusiasm of farmers for seed production, etc., and achieve the effect of high yield

Inactive Publication Date: 2014-08-20
XUZHOU VOCATIONAL COLLEGE OF BIOENG
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Problems solved by technology

[0003] Due to the obvious regional differences in climate, soil, and rice hybrid combinations in the northern and southern rice seed production areas of my country, there are large differences in the growth characteristics, sowing time, flowering standards, and use of chemical regulators in the hybrid rice seed production process of the parents. ; The original hybrid rice seed production technology has a low yield in Xuzhou area, about 200Kg per mu. Compared with commercial rice cultivation, the comparative benefit is low, which leads to the low enthusiasm of farmers for seed production; the current hybrid rice seed production can only meet the needs of the current season , the low effective inventory has affected the production safety of hybrid rice

Method used

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Embodiment Construction

[0033] parental traits

[0034]Characteristics of the female parent: The female parent 602S is a photothermosensitive genetic male sterile line bred by Jiangsu Xuzhou Dahua Seed Industry Co., Ltd. by crossing Guangzhan 63S as the female parent and early indica R402 as the male parent through 6-generation pedigree selection; The female parent has a compact plant type, strong tillering ability, dark green leaf color, a plant height of about 78 cm, and a total of 14 leaves on the main stem. The number of spikelets is about 140, and the neck length is about 8cm. It is sensitive to "920"; the stigma is colorless; the flowering habit is good, and the flowering time is concentrated. Under normal weather conditions, it starts to flower at 8:30-9:00 am, and 9:00 am. 30-11:30 is the peak of daily flowering, and the final flower is around 14:00, and it will be delayed on cloudy days; the average glume opening angle is about 32 degrees, the opening and closing glume of a single glume take...

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Abstract

The invention discloses a seed production method of 6-liang optimal No. 2 hybrid middle-season indica rice combination, belonging to the field of a rice seed production technology. The method takes a female parent 602S as the female parent and a male parent restoring line HR2 as the male parent; based on the factors such as climate, soil, variety, cultivation pattern and the like of the Xuzhou area, research and demonstration of a high-yield and high-efficiency production mode of regional rice seed production can be carried out. The seed production method has significance for improving the agricultural modernization level of Xuzhou city and solving the problem of 'agriculture, farmer and rural area' by scientific and technological progress, and has reference significance for high-yield and high-efficiency production of rice seed production in China.

Description

technical field [0001] The invention discloses a seed production method of hybrid medium indica rice combination 6 Liangyou No. 2, which belongs to the technical field of rice seed production. It is suitable for seed production of the two-line hybrid medium indica rice combination 6 Liangyou 2. Background technique [0002] 6 Liangyou 2 is a two-line medium-maturing hybrid indica rice combination, which was developed by Xuzhou Agricultural Science Research Institute of Jiangsu Province and Xuzhou Dahua Seed Industry Co., Ltd. of Jiangsu Province, using the photothermosensitivity GMS line 602S as the female parent and the restorer line HR2 as the parent. The male parent was paired and bred in 2006. In 2013, it was approved by Jiangsu Variety Approval Committee. It is suitable for planting in medium indica rice areas in Jiangsu Province. [0003] Due to the obvious regional differences in climate, soil, and rice hybrid combinations in the northern and southern rice seed pro...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01G16/00A01G22/22
Inventor 李文红秦越华
Owner XUZHOU VOCATIONAL COLLEGE OF BIOENG
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