Breeding method for dry rice Youyouxiang

A technology of fragrant rice and seeds, which is applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems of increasing breeding work intensity, reducing breeding work efficiency, and inconvenient operation, so as to improve breeding work efficiency, agronomic The effect of stable properties and convenient operation

Inactive Publication Date: 2021-07-30
亿科国际种业有限公司
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Problems solved by technology

[0006] In order to solve the above-mentioned technical problems, the present invention provides a breeding method for upland rice Youyouxiang, in order to solve the shortcomings of the existing method that the female parents do not bear fruit when they are hybridized in vitro, and cannot be continuously operated in a large number of selected places, and the operation is inconvenient. Increase the intensity of breeding work and reduce the problem of breeding work efficiency

Method used

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Embodiment Construction

[0018] The present invention is further described below:

[0019] The present invention provides embodiment:

[0020] A breeding method for upland rice Youyouxiang, using upland rice as the female parent and fragrant rice as the male parent to carry out hybridization, and the characteristic characteristics of breeding are: plant height 95 cm, ear length 20 cm, thousand-grain weight 27 grams, average grain number per ear 100, Scattered panicle and long-grain fragrance type, which requires an effective accumulated temperature of 2380-2400°C and a growth period of 138 days. It is disease-resistant, lodging-resistant, and cold-resistant. It has medium-strong tillering and excellent quality. It is a Youyouxiang variety suitable for planting in the second and third accumulative temperature zones.

[0021] The specific steps of the breeding method are as follows:

[0022] (1) Use upland rice as the female parent and fragrant rice as the male parent, perform low-temperature purificat...

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Abstract

The invention provides a breeding method for dry rice Youyouxiang. According to the breeding method, the dry rice serves as female parent and fragrant rice serves as male parent for hybridization; the dry rice cultivated through the method is stable in main agronomic character, disease-resistant, lodging-resistant, cold damage-resistant, moderately strong in tillering, excellent in quality and suitable for planting in second and third accumulated temperature zones; and the defect that the female parent is poor in fruiting during in-vitro hybridization is overcome, and the method can be continuously and massively operated in a selected place, is very convenient in operation, and has important meanings for reducing the breeding work intensity, improving the breeding work efficiency and accelerating the new variety breeding process.

Description

technical field [0001] The invention belongs to the technical field of fruit and vegetable breeding, and in particular relates to a breeding method for upland rice Youyouxiang. Background technique [0002] Agriculture is the foundation of the national economy, and improved crop varieties contribute more than 30% to the increase in agricultural productivity. The selection and promotion of crop varieties has achieved many important results, and has contributed to solving the problem of food and clothing for the Chinese population. Promoting improved varieties is a measure to increase production with low investment, low energy consumption, and high efficiency, which greatly improves agricultural productivity. [0003] In the existing upland rice hybrid breeding process, in order to ensure pure hybridization, the flowers of the female parent must be artificially detasselled to prevent self-fertilization. A few days before flowering, the sepals and petals are peeled off manuall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 马斌
Owner 亿科国际种业有限公司
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