Selective breeding and propagating method of ecological type sterile line of yellow-sprout capsicum

Abstract

The invention relates to a selective breeding and propagating method of a plant, particularly relates to a selective breeding and propagating method of a capsicum, belonging to the technical field of plant breeding. Compared with the existing selective breeding technology of a male sterile line of a capsicum, the method has the advantages that the breeding procedure is simple and convenient, the breeding target character and procedure are controllable, the sterile plant rate and the sterile degree are high, and the breeding efficiency is enhanced. A new approach is developed for capsicum heterosis utilization, selective breeding of a leaf color marked sterile line, rapid purity identification of hybrid F1-generation seeds, and the like.

Description

technical field

[0001] The invention relates to a plant selection and breeding method, in particular to a pepper selection and breeding method, and belongs to the technical field of plant breeding. Background technique

[0002] Studies have shown that there is obvious heterosis in hybrids among pepper varieties. The ways to utilize heterosis in pepper include artificial emasculation interspecific hybridization, double-cross, three-cross and male sterile line (male sterile dual-purpose line hybrid seed production, cytoplasmic male sterile line seed production), chemical detasseling Androgen seed production. Among them, there are disadvantages such as environmental pollution and low purity of hybrids in chemical castration seed production. Therefore, artificial castration and male sterile line seed production are mainly used in the world. The disadvantages of artificial detasseling are: the stamens of the female flower buds must be removed during seed production, which is la...

Examples

Embodiment 1

[0028] Such as figure 1 As shown, the present embodiment selects bud yellow pepper ecotype male sterile line LY77AB by the following method

[0029] LY77AB: L stands for Yangjiao pepper, y stands for Yahuang, 77 stands for the original line number, A stands for the sterile line (A), B stands for the maintainer line (B), AB stands for two lines into one line (AB).

[0030] In the spring of 2008, the bud yellow pepper cytoplasmic male sterile line 140-6A was used as the female parent to cross with Ly claw pepper to obtain the first hybrid (F1).

[0031] In the autumn of 2008, the first generation of hybrids (F1) were sown in Zhenjiang in autumn, and some fertile or fertile plants in autumn were selected from them, and the F2 generation was obtained by selfing. Different lines were numbered separately, and the seeds were divided into two.

[0032] In the spring and autumn of 2009, the F2 generation was sown separately, and the seeds with a bud yellow mark sterile plant rate ≥ 50...

Embodiment 2

[0049] The method of this example is the same as that of Example 1, except that the cytoplasmic male sterile line 140-2A of bud yellow pepper is used as the female parent. The test results are shown in Table 1 and Table 2.

Embodiment 3

[0051] The method of this example is the same as that of Example 1, except that the cytoplasmic male sterile line 140-8A of bud yellow pepper is used as the female parent. The test results are shown in Table 1 and Table 2.

technical field

[0001] The invention relates to a plant selection and breeding method, in particular to a pepper selection and breeding method, and belongs to the technical field of plant breeding. Background technique

[0002] Studies have shown that there is obvious heterosis in hybrids among pepper varieties. The ways to utilize heterosis in pepper include artificial emasculation interspecific hybridization, double-cross, three-cross and male sterile line (male sterile dual-purpose line hybrid seed production, cytoplasmic male sterile line seed production), chemical detasseling Androgen seed production. Among them, there are disadvantages such as environmental pollution and low purity of hybrids in chemical castration seed production. Therefore, artificial castration and male sterile line seed production are mainly used in the world. The disadvantages of artificial detasseling are: the stamens of the female flower buds must be removed during seed production, which is la...

Examples

Embodiment 1

[0028] Such as figure 1 As shown, the present embodiment selects bud yellow pepper ecotype male sterile line LY77AB by the following method

[0029] LY77AB: L stands for Yangjiao pepper, y stands for Yahuang, 77 stands for the original line number, A stands for the sterile line (A), B stands for the maintainer line (B), AB stands for two lines into one line (AB).

[0030] In the spring of 2008, the bud yellow pepper cytoplasmic male sterile line 140-6A was used as the female parent to cross with Ly claw pepper to obtain the first hybrid (F1).

[0031] In the autumn of 2008, the first generation of hybrids (F1) were sown in Zhenjiang in autumn, and some fertile or fertile plants in autumn were selected from them, and the F2 generation was obtained by selfing. Different lines were numbered separately, and the seeds were divided into two.

[0032] In the spring and autumn of 2009, the F2 generation was sown separately, and the seeds with a bud yellow mark sterile plant rate ≥ 50...

Embodiment 2

[0049] The method of this example is the same as that of Example 1, except that the cytoplasmic male sterile line 140-2A of bud yellow pepper is used as the female parent. The test results are shown in Table 1 and Table 2.

Embodiment 3

[0051] The method of this example is the same as that of Example 1, except that the cytoplasmic male sterile line 140-8A of bud yellow pepper is used as the female parent. The test results are shown in Table 1 and Table 2.

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