Pumpkin breeding method of male sterile dual-purpose line GMS-Ma1802

Abstract

The invention provides a pumpkin breeding method of a male sterile dual-purpose line GMS-Ma1802. The male sterile dual-purpose line GMS-Ma1802 serves as a female parent and is hybridized with other pumpkins serving as male parents to obtain an F1 generation, and male sterile plants in the F1 generation are target plants for breeding. According to the pumpkin breeding method, application of male sterility to pumpkin breeding is realized, and the labor cost for carrying out female parent male flower isolation bagging or castration in pumpkin hybrid seed production is saved. The effects of promoting pumpkin hybrid variety popularization and increasing farmer income are increasingly shown, and male sterile material breeding and production application prospects are very wide.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a pumpkin breeding method based on the male sterile line GMS-Ma1802. Background technique [0002] Plant male sterility has been used as an important tool for hybrid seed production and dominant utilization of various crops, especially the use of heterosis in self-pollinated crops and often cross-pollinated crops. Male sterility has been used as an important approach, such as Rice, pepper, cotton, cabbage, corn, cabbage, etc. Cucurbitaceae crops are mostly heterogeneous crops. At present, there are research reports on Cucurbitaceae crops such as watermelon and melon, but there are few applications of male sterility, and even fewer application research reports. [0003] The main factor affecting the male sterility of Cucurbitaceae is that it is difficult to obtain materials with stable male sterility, and the male sterility that can be applied is rare. For quite a long tim...

AI Technical Summary

Problems solved by technology

For quite a long period of time, because pumpkin is a large-flowered and often cross-pollinated crop, traditional emasculation and isolation breeding and hybrid seed production have no obvious impact on industrial development.

However, with the increase in the scale of the pumpkin industry recently, the production and promotion area of ​​hybrid varieties has increased rapidly. The workload and cost of removing male flowers in hybrid seed production have been large, and the labor cost has increased rapidly. In some areas, the labor cost has accounted for 30% of the production cost of pumpkin hybrid seeds. %above

Especially in the middle and later stages of flowering, when the stems and leaves are sealed and emasculated, it is difficult to observe, and emasculation is not complete, so it is difficult to ensure the purity of hybrids, thereby affecting the yield and quality of pumpkins

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