Selective breeding method for black glutinous maize inbred line
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A technology of black waxy corn and inbred lines, which is applied in the field of breeding black waxy corn inbred lines, can solve the problems of black waxy corn resources shortage and vacancy of high-quality varieties, and achieve excellent agronomic traits, long pollen duration, nutritional rich effect
Active Publication Date: 2013-01-16
NANJING INST OF VEGETABLE SCI
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Black glutinous corn has black grains and is rich in nutrients such as selenium (Se) and anthocyanins, which are essential elements for the human body, and is suitable for fresh-keeping processing and can be supplied to the market year-round. The consumer demand is rising rapidly, resulting in the expansion of the cultivation area year by year. , but the high-quality varieties are relatively vacant, so it is particularly important to breed inbred lines that can be formulated into black waxy corn hybrids with high quality, high yield, good stress resistance, and wide adaptability. Germplasm innovation and resource improvement are used to breed high-quality black waxy corn inbred lines, and then breed new high-quality black waxy corn varieties to meet market demand
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Embodiment 1
[0022] Example 1 The specific steps of applying the method of the present invention to select and breed the black waxy corn inbred line-HN-01:
[0023] The first step: hybridize the black waxy corn as the female parent and the white waxy corn as the male parent, and then backcross the black waxy corn.
[0024] 1) From March to June 2009, the black waxy corn variety-Jinnuo 8 and the white waxy corn variety-Suyunuo 5 were planted in Nanjing, with Jinnuo 8 as the female parent and Suyunuo 5 as the male parent. 2 to 3 plants to get hybrid ears.
[0025] 2) From July to October 2009, the seeds of the hybrid panicles were planted in Nanjing, and 2 to 3 plants were backcrossed with Jinnuo 8 as the male parent to obtain backcrossed panicles.
[0026] The second step: from March to June 2010, the seeds of the backcrossed ears were planted in Nanjing, and 100 plants were bagged and self-crossed, and the ears with black cobs and grains were selected.
[0027] The third step: From July ...
Embodiment 2
[0029] Embodiment 2 Black waxy corn new variety breeding method:
[0030] Step 1: Plant black waxy corn inbred line HN-01, white waxy corn inbred lines 20, yellow waxy corn inbred lines 10, and black waxy corn inbred lines 8 in Nanjing from March to June 2012; The inbred lines of Bainuo, Huangnuo and Heiwao corn were used as the female parent, and HN-01 was used as the male parent to cross 3 to 4 plants respectively. The seeds were harvested after maturity, and 38 F1 seeds of hybrid combinations were obtained, among which Bainuo and Huangnuo The F1 seeds of Nuo as the female parent are light yellow, and the F1 seeds of Hei Nuo as the female parent are black.
[0031] The second step: From July to September 2012, the seeds of 38 hybrid combinations were planted and identified in Nanjing, and the plant traits, yield, quality, commerciality and stress resistance were compared and selected. The results showed that: BN-11( The three combinations of white waxy) XHN-01, SN-03 (yello...
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Abstract
The invention discloses a selective breeding method for a black glutinous maize inbred line, which includes the following steps: (1) Jinnuo No. 8 is chosen as female parent and Suyunuo No. 5 is chosen as male parent for hybridization, so that hybrid ears are obtained; (2) after the seeds of the hybrid ears are planted, Jinnuo No. 8 is used as the male parent for backcross, so that backcrossed ears are obtained; (3) after being planted, the seeds of the backcrossed ears are bagged to be inbred, ears with black cobs and seeds are chosen, each ear is separately threshed, the seeds of each ear are planted in a row, and thereby different ear rows are formed; all the individual plants in each ear row are bagged to be inbred, so that inbred ears are obtained, and the inbred ears in the different ear rows are separately harvested; (4) the ear rows in which both the cobs and seeds of all the inbred ears are black are chosen to be left, the seeds of the inbred ears are planted, and according to stress resistance and qualitative character, the excellent individual plants are chosen to be continuously inbred for three generations, so that the black glutinous maize inbred line is obtained. The black glutinous maize inbred line has the advantages of rich nutrition, unique taste, thin pericarp, high glutinousness, high stress resistance, wide applicability and excellent agronomic character.
Description
technical field [0001] The invention relates to a method for breeding black waxy corn inbred lines, and belongs to the technical field of breeding of new agricultural varieties. Background technique [0002] With the improvement of people's living standards and the strengthening of health awareness, people have put forward new demands on the types, nutritional ingredients, appearance, color and health functions of fresh corn products. Black glutinous corn has black grains, rich in nutrients such as selenium (Se) and anthocyanins, which are essential elements for the human body, and is suitable for fresh-keeping processing and can be supplied to the market year-round. The consumption demand is rising rapidly, resulting in the expansion of the cultivation area year by year. , but the high-quality varieties are relatively vacant, so it is particularly important to breed inbred lines that can be formulated into black waxy corn hybrids with high quality, high yield, good stress r...
Claims
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