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Method for genus-species distant hybridization of pumpkins

A technology of distant hybridization and pumpkin, applied in the directions of botanical equipment and methods, applications, and plant genetic improvement, it can solve the problems of large separation range of hybrid offspring, sterility or premature death, long separation generation, etc., to achieve growth potential and resistance. The effect of strong stress performance, less deformed plants and high survival rate of seedlings

Inactive Publication Date: 2018-03-09
衢州市农业科学研究院
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Problems solved by technology

However, in the process of distant hybridization, it is often difficult to set seeds. Even if they are fruitful, they are usually infertile or die young.

Method used

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  • Method for genus-species distant hybridization of pumpkins
  • Method for genus-species distant hybridization of pumpkins
  • Method for genus-species distant hybridization of pumpkins

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Embodiment Construction

[0020] The present invention will be further explained below in conjunction with specific embodiments.

[0021] Example, the work of distant hybridization between Cucurbita species was completed at the Experimental Base of Quzhou Academy of Agricultural Sciences in Liyuan, Qujiang District.

[0022] A kind of method for distant hybridization between Cucurbita species that the present invention proposes, comprises the following steps:

[0023] S1, determine the object of hybrid matching: select the three major cultivars of the genus Cucurbita American pumpkin, Indian squash and Chinese squash as the test objects for hybrid matching;

[0024] S2. Formulate the appropriate sowing time: according to the annual breeding seasons of spring and autumn, respectively formulate the sowing period, the time of pollination and sitting melons, and the harvesting period of mature melons. The three kinds of pumpkins in spring breeding are uniform sowing periods: early February to mid-February ...

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Abstract

The invention discloses a method for genus-species distant hybridization of pumpkins. The method comprises the following steps: S1, confirming hybridization apolegamic targets; S2, determining seedingtime; S3, selecting planting conditions; S4, performing hybridization tests on combinations of America pumpkins and Chinese pumpkins, America pumpkins and Indian pumpkins as well as Chinese pumpkinsand Indian pumpkins, counting incompatibility, infertility, sterility and phenotype situations, analyzing factors affecting distant hybridization compatibility, and exploring genus-species distant hybridization progeny separation rules; and S5, according to results of the genus-species distant hybridization tests, confirming appropriate female parents and male parents, and meanwhile implementing appropriate pollination modes. By adopting the method disclosed by the invention, the phenomenon of incompatibility of genus-species distant hybridization is overcome, a high distant hybridization setting percentage is achieved, pumpkins are high in yield, high in fruit setting rate, large in single pumpkin seed number, high in seedling survival rate, small in malformation plant amount and good ingrowth vigor and stress resistance, and technical and theoretic bases can be made for innovation of germplasm resources and parental apolegamy of pumpkins.

Description

technical field [0001] The invention belongs to the field of squash breeding, and in particular relates to a method for distant hybridization between squash species. Background technique [0002] Pumpkin has a long history of cultivation in my country and can be used as food, vegetables, seeds, ornamental and feed. Pumpkins can also be used as medicine, and ancient books such as "Dietary Instructions" and "Compendium of Materia Medica" also have records on pumpkins. With the development of science and technology and the improvement of people's living standards, people have a deeper understanding of pumpkin. The pulp of pumpkin is rich in various amino acids, vitamins, polysaccharides, pectin, minerals, and also contains trigonelline and carotenoids. Therefore, pumpkin has given a new meaning in people's dietary structure. It is not only a dish that people like to eat, but also an important nutritional and health food. It has become a unique vegetable family. Distinctive sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 张富仙徐建祥余文慧邵晓伟李诚永许林英朱卫东周彩军
Owner 衢州市农业科学研究院
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