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Preparation method of Chinese pennisetum interspecific triploid hybrid under natural conditions

A technology of Pennisetum under natural conditions, applied in the field of preparation of triploid hybrids of Pennisetum genus under natural conditions, can solve the problems of poor quality, low protein content and low feed value, and save production. and transportation costs, the effect of improving the seed setting rate

Inactive Publication Date: 2018-12-07
北海市绿邦生物创景有限公司
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Problems solved by technology

[0004] Therefore, the method in the prior art has relatively large disadvantages for transportation and popularization, and the quality is poor, the protein content is low, and the feeding value is not high.

Method used

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  • Preparation method of Chinese pennisetum interspecific triploid hybrid under natural conditions

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Embodiment 1

[0041] The present invention uses diploid Pennisetum amricanun and tetraploid elephant grass (P.purpureum) xuanpeide to prepare Pennisetum amricanun interspecies triploid hybrids under non-artificial control (natural conditions). The hybrid generation is fruitful and can be used as seed propagation, while the F1 generation is not fruitful.

[0042] The hybrid parent is a short-day plant, which is a warm-season herbage. It is very sensitive to light, and only under suitable latitude and light conditions can it bloom and bear fruit and complete the growth process. For this reason, we can only choose to produce seeds in lower latitudes where the parents can bloom naturally and loose powder. And adjust the sowing date of the female parent to synchronize with the flowering period of the male parent.

[0043] The hybrid male parent Elephant grass precocious is perennial and can be preserved for many years without changing its species.

[0044] The core technology of the present i...

Embodiment 2

[0106] Embodiment 2 Bond No. 1 (trade name) hybrid pennisetum high-yield cultivation method

[0107] Bond No. 1 hybrid pennisetum is an F1 generation interspecific triploid hybrid prepared from the CMS line of Pennisetum americana as the female parent and Elephant grass precocious as the male parent. It combines the characteristics of high yield, high quality and strong stress resistance of its parents, and is planted in tropical and warm temperate regions, effectively solving the contradiction of lack of green fodder during the high temperature period in midsummer.

[0108] 1. Sowing methods and requirements

[0109] Bond No. 1 hybrid pennisetum has a well-developed root system and requires a deep soil layer, generally 30 cm deep, broken soil preparation, raking, and fine sowing.

[0110] Bond No. 1 hybrid pennisetum can only develop its full production potential under the condition of high nitrogen fertilizer. Tests have shown that: on soil with medium to high fertility, b...

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Abstract

The invention provides a preparation method of a Chinese pennisetum interspecific triploid hybrid under natural conditions; the Chinese pennisetum interspecific triploid hybrid is prepared from diploid pennisetum americanum and tetraploid Pennisetum purpureum, the method specifically includes breeding of a female sterile line protospecies of hybrid Chinese pennisetum, and a hybrid Chinese pennisetum seed is prepared from the bred female sterile line protospecies of hybrid Chinese pennisetum and male parent Pennisetum purpureum. The method solves the drawbacks existing in the prior art, and banged No.1 hybrid Chinese pennisetum seed prepared by the method breaks the current situation that no seed is used for breeding of the same type of forage grass, and the breeding of the same type of forage grass can only be achieved by asexual propagation. By means of aerial sowing and broadcast sowing, planting modes can be greatly facilitated, and the planting cost and transportation cost can be saved. The hybrid Chinese pennisetum is not only used as the gramineous forage grass in South China, but also can be used as a raw material of high quality biomass energy grass, building materials andsuperior beverages and the like, and has great development prospects in energy field, material industry and beverage and food industry.

Description

technical field [0001] The invention belongs to the technical category of new variety breeding in agriculture, animal husbandry and fishery, and in particular relates to a preparation method of pennisetum interspecies triploid hybrids under natural conditions. Background technique [0002] At present, the research on interspecific hybridization of hybrid pennisetum forage grasses on the market uses high-quality pennisetum americana to improve and improve the feeding quality of elephant grass. This type of hybrid is limited to asexual reproduction. [0003] For example, the prior art discloses a method for using ammonia water to pretreat hybrid pennisetum at low temperature. The hybrid pennisetum was pretreated with ammonia water at low temperature. After the pretreatment, the raw material was subjected to enzymatic hydrolysis and saccharification. The concentration of glucose and xylose in the enzymatic hydrolyzate was measured by high performance liquid chromatography, so a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 施贵凌白淑娟
Owner 北海市绿邦生物创景有限公司
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