Rapid breeding method of potatoes

A potato, fast technology, applied in the directions of botanical equipment and methods, applications, plant genetic improvement, etc., can solve the problems of not breeding varieties used in production, imperfect transgenic breeding technology, and little effect, and achieve shortening. Breeding process, faster time-to-market, effect of shortening breeding years

Inactive Publication Date: 2019-03-29
VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI
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Problems solved by technology

At present, the only variety obtained through mutation breeding is Lu Potato No. 2. It can be said that mutation breeding has achieved little effect in potato breeding in my country; and cell engineering breeding and transgenic breeding technology are not perfect, so far no Varieties used in production; molecular assisted breeding has developed rapidly in recent years, but it is only used as an auxiliary means of cross breeding

Method used

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Experimental program
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Embodiment

[0023] (1) In the spring of the first year, according to the breeding goals of processing varieties in production and early-maturing and high-yielding varieties in the Central Plains second-season crop area, early-maturing and high-yielding materials were selected as breeding parents, 312 hybrid combinations were prepared, and 52,000 seedlings were obtained. remaining grains.

[0024] (2) Before sowing in the first autumn in early September, soak the seeds with 10mg / L gibberellin + 6-BA 20mg / L for 2 hours, and then sow them into the nutrient pot filled with vermiculite in the greenhouse, and sow in a nutrient pot a seed. The seed potato family was harvested on January 20. Using the elimination method, seed potatoes with excellent appearance shape, yield shape, short stolon, concentrated tuber, and scab resistance were preliminarily selected, and 15,600 seed potato materials were harvested (namely, seed potato A material. );

[0025] (3) In the autumn of the second year, in o...

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Abstract

The invention discloses a rapid breeding method of potatoes. Screening is conducted by methods of screening in Shandong and Inner Mongolia as well as screening spring, summer and autumn, varieties suitable for a central plain two-season crop area and a northern one-season crop area simultaneously can be selected, and potato new varieties only suitable for the central plain two-season crop area toplant or only suitable for the northern one-season crop area to plant also can be selected, so compared with the traditional breeding method, the rapid breeding method of the potatoes has the following advantages: the prepared hybridized combination is completely utilized and waste of hybridized materials is avoided; and through generation adding planting of two places, the operation from preparation of hybridized combination in the first year to variety registration totally needs 11 years, the breeding year limit is shortened and the breeding flow is accelerated, so that the pace of pushing the new varieties to the market is accelerated.

Description

technical field [0001] The invention relates to a method for rapid potato breeding, and relates to the technical field of breeding methods. Background technique [0002] Potato is an important crop widely planted in the world. It can be either a food crop, a vegetable crop, or an economic crop. China is a big potato producing country, with a planting area of ​​84 million mu and a total output of 95.76 million tons. Potato breeding in China began in the 1940s, and nearly 300 disease-resistant and high-yield varieties have been selected and bred for more than half a century. However, with the improvement of people's living standards and the different demand for potatoes, the current potato varieties can no longer meet the needs of production. Therefore, the pace of breeding should be accelerated to meet the market demand. [0003] Potato breeding methods can be divided into hybrid breeding, mutation breeding, cell engineering breeding, transgenic breeding, molecular assisted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 陈广侠郭晓董道峰刘芳杨元军杨煜杨晓慧
Owner VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI
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