Breeding method of rape variety suitable for balcony cultivation
A variety and technology of rapeseed, applied in the field of rapeseed breeding, can solve the problems of high cost of field planting management, easy formation of tall seedlings, time-consuming and labor-intensive, etc., and achieves the effects of high ornamental value, less lodging, and improved selection efficiency.
Active Publication Date: 2021-03-05
湖南省作物研究所
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Problems solved by technology
However, the conventional brassica napus materials have the characteristics of high plant type, easy to lodging, easy to form tall seedlings in indoor planting, and sparse branches and flowers during the flowering period. They are not suitable for indoor or balcony potting. A variety that has other ornamental characteristics suitable for balconies and urban greening cultivation, including beautiful leaves and flower organs, dense branches and flowers, etc.
In addition, the method of selecting individual plants for target traits at the seedling or mature stage through field planting is often time-consuming and laborious, and the cost of field planting management is relatively high
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[0029] A kind of breeding method of the rape variety (" Fengling No. 1 ") that is applicable to balcony cultivation of the present invention, the breeding process is as follows: figure 1 shown, including the following steps:
[0030] (1) Implementation materials
[0031] Brassica napus "167B" is the maintainer line of the Porrima cytoplasmic male sterile line 167A bred by the Hunan Provincial Crop Research Institute. The whole growth period is about 210 days, the leaves are dark green at the seedling stage, and there are 2 to 3 pairs of opposite split leaves , medium growth potential; average plant height 1.63 meters, 7-8 branches, about 253 siliques per plant, about 20 siliques per silique, and 3.75 grams of 1,000-grain weight; strong lodging and disease resistance; mustard Acid content 0, glucosinolate content 26.56 micromol / g (cake), oil content 44.21%;
[0032] "Flower kale", also known as leaf peony, is a variety of brassicaceae Brassica cabbage, a 2-year-old herb; nati...
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The invention discloses a breeding method of a rape variety suitable for balcony cultivation. The method includes the steps of hybridizing a cabbage type rape line 167B serving as a female parent withkale, and carrying out multi-generation backcross on the 167B serving as a male parent and filial generations until a selfing group with stable and consistent properties and specific properties is obtained; and carrying out dark culture on seeds, reserving young germs with hypocotyls shorter than 3.0 cm, culturing until seedlings are formed, carrying out multi-generation selfing by selecting a single plant with the plant height of less than 70 cm in an initial flowering stage until homozygous and stable dwarf selfing line seeds are obtained, and obtaining the rape variety suitable for balconycultivation. According to the breeding method of the rape variety suitable for balcony cultivation, the ornamental character of collard in the seedling stage is introduced into a cabbage type rape byutilizing distant hybridization, so that the directional improvement of the target character of the cabbage type rape is realized; and meanwhile, a young germ directional screening technology is utilized to realize rapid and accurate screening of the compact plant types, so that manpower and material resources are saved, and the variety selection efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of rapeseed breeding, and in particular relates to a method for selecting rapeseed varieties suitable for balcony cultivation based on distant hybridization, radiation mutagenesis, dark culture directional selection and the like. Background technique [0002] With the continuous acceleration of urbanization in our country, the scale of cities is getting larger and larger, more and more buildings are constructed of concrete, and green space is decreasing day by day, so urban greening has attracted more and more attention. For the good environment of the family, more and more people move green plants into indoor balconies, indoors and roofs. Brassica napus has bright colors, long flowering period and high ornamental value. Rapeseed is easy to cultivate and manage. It can be used to watch the leaves at the seedling stage and to watch the flowers at the flowering stage. It is a potted flower with potential. At...
Claims
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IPC IPC(8): A01H1/04A01H1/02
CPCA01H1/02A01H1/04
Inventor 李莓李宝王同华邓力超郭一鸣刘新红曲亮范连益
Owner 湖南省作物研究所