No-shell India pumpkin parent and variety breeding method

An Indian pumpkin, parent technology, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of low export profit, high cost, small seeds, etc., to improve commerciality, ensure quality, and increase economy. The effect of benefit and social benefit

Inactive Publication Date: 2009-08-19
WIN ALL HI TECH SEED CO LTD
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Problems solved by technology

Consumers have a great demand for shelled pumpkin kernels, and all the pumpkin kernels sold in the market are obtained by manual peeling, and the cost is very high
[0004] At present, the production of pumpkin seeds in my country still mostly has seed shells, and there are also a small

Method used

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  • No-shell India pumpkin parent and variety breeding method

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Embodiment 1

[0016] see figure 1 , the present invention utilizes the Indian pumpkins for seeds of Dabaiban introduced from the Northeast, Northwest and other regions of our country for producing pumpkins for seeds. There are 21 parts in total. More than 30 homozygous lines are obtained after many years of multi-generational self-breeding and purification. The distant different homozygous lines P1 and P17 were crossed, and 200 seeds of P1×P17 were treated with plasma physical mutagen nitrogen ion at a dose of 2500-3000 Rad to induce the variation of Indian pumpkin varieties for seeds. In October 2005, all 200 P1×P17 seeds treated were planted, observed and self-crossed in the Hainan test base. In January 2006, a pumpkin mutant without seed husk was found when the pumpkin matured and tested, numbered M3052. After the mutant M3052 was purified for two generations, a homozygous line M3052-1-1 without seed shell was obtained. The homozygous line was tested and identified with the homozygous In...

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Abstract

The invention relates to a method for breeding seed shell-less winter squash parents and varieties, which comprises: performing generation increasing purification on the collected seed winter squash variety source; performing hybridization on different homozygous lines with far geo-relationship after generation increasing purification, adopting plasma physical mutagen, namely nitrogen ions with dosage between 2,500 and 3,000 Rad for treatment, and inducing a seed winter squash variety for mutation; performing multi-generation planting purification and test cross assay on selected mutated seed shell-less winter squash mutants to find seed shell-less winter squash mutants of which hereditary characters are controlled by a recessive single gene; and breeding serial seed shell-less seed winter squash parents through hybridization and backcross of the selected seed shell-less winter squash mutants and a great number of seed winter squash parents with seed shells, and utilizing hybridization of the bred parents to breed seed shell-less winter squash hybrid varieties. The method realizes identifying the truth of seed shell-less winter squash seeds in appearance quickly, simply, intuitively and accurately, contributes to seed market protection and guarantees the quality of the seeds.

Description

technical field [0001] The invention relates to a breeding method of Indian squash parents and varieties without seed shells. Background technique [0002] Pumpkin is one of the earliest ancient crops cultivated by humans. There are many types and varieties of pumpkins, and the shapes, sizes, and qualities of fruits are different, and the colors are colorful. The characteristics of diversity among cultivated plants are very prominent. Pumpkin has strong disease resistance and stress resistance, wide adaptability, high yield, easy cultivation, and storage resistance of mature fruits. It is widely planted in various parts of our country. [0003] In Northeast my country, Northwest China, North China and other regions, the annual cultivation area of ​​pumpkin for seeds is nearly 3-5 million mu, which is mainly aimed at harvesting pumpkin seeds, and it is a major local economic crop. With the development of my country's economy and the continuous improvement of people's living ...

Claims

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Application Information

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IPC IPC(8): A01H1/04A01H1/02A01H1/06
Inventor 钱奕道张从合杨坤陈金节陈孝奇
Owner WIN ALL HI TECH SEED CO LTD
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