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Hybrid breeding method of cocksfoot

A technology of Duckweed and subspecies, which is applied in the field of Duckweed hybrid breeding, can solve the problems such as the difficulty of manual emasculation, the authenticity of difficult hybrids, and the failure to effectively carry out Duckweed hybrid breeding.

Active Publication Date: 2011-04-06
云南金草地牧业科技开发有限公司
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Problems solved by technology

Dactylis is currently the backbone grass species for grassland ecological construction in western my country, but there are considerable difficulties in the cultivation of Dracula species
On the one hand, the inflorescences of duckweed are dense, the florets are small, and it is extremely difficult to manually detassell
On the other hand, Dactylis is a polytype species with various morphological characteristics, and it is extremely difficult to accurately determine the authenticity of hybrids for offspring obtained by natural hybridization
The above two factors are the main reasons for the failure to effectively carry out the hybrid breeding of Dactylis chinensis

Method used

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  • Hybrid breeding method of cocksfoot
  • Hybrid breeding method of cocksfoot

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Embodiment Construction

[0014] Below by reference figure 1 The present invention will be described in detail. figure 1 A method for hybridization and breeding of Dactylis chinensis according to one embodiment of the present invention is shown.

[0015] like figure 1 As shown, firstly, in step S100, the Dactylis chinensis of the Himalayan Dactylis subspecies and the Dactylis chinensis of the Dactylis subspecies are respectively cultivated, for example, by cultivating the cultivars of the Himalayan Dactylis subspecies and the Dactylis subspecies in the laboratory Raising seedlings, then choose robust single plants to plant alternately (optionally, the spacing between plants is usually 50cm) to carry out. According to an embodiment of the present invention, the Dactylis subspecies of Himalayan Dactylis is an autotetraploid Dactyloides of Himalayan Dracula subspecies, which is obtained by chemically inducing, automatically obtained through handover and manual selection. Since the spikelet lemma of Hi...

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Abstract

The invention discloses a hybrid breeding method of cocksfoot, comprising the steps of: cultivating Himalaya cocksfoot subspecies; cultivating original cocksfoot subspecies; pollinating during the blossoming period of the cocksfoot of the Himalaya cocksfoot subspecies and the blossoming period of the cocksfoot of the original cocksfoot subspecies; storing the seeds in the inflorescence of the cocksfoot of the Himalaya cocksfoot subspecies; carrying out individual cultivation on the seeds; and determining the successfully hybridized individual as novel cocksfoot according to the morphological feature of the spikelet during the individual cultivation period. The invention also discloses a novel cocksfoot variety cultivated by the method.

Description

technical field [0001] The present application generally relates to the field of Dactylis duckweed breeding, and in particular to a method of Dactylis duckweed hybridization and breeding by hybridization. Background technique [0002] Duckgrass (Dactylis glomerata L.) is a well-known temperate forage grass, which occupies an important position in the cultivation of forage grass in the world. Dactylis is currently the backbone grass species for grassland ecological construction in western my country, but there are considerable difficulties in the cultivation of Dracula species. On the one hand, the inflorescences of duckweed are dense and the florets are small, so it is extremely difficult to manually detassell. On the other hand, Dactylis is a polytype species with various morphological characteristics. For the offspring obtained by natural hybridization, it is extremely difficult to accurately determine the authenticity of the hybrid. The above two factors are the main re...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H5/00
Inventor 钟声黄梅芬薛世明段新慧徐驰李乔仙
Owner 云南金草地牧业科技开发有限公司
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