Breeding method for sweet glutinous maize self-bred line

A technology of sweet waxy corn and inbred lines, which is applied in the field of breeding of sweet waxy corn inbred lines. The effect of well-developed branches, excellent agronomic traits, and long-lasting pollen

Active Publication Date: 2011-10-19
NANJING INST OF VEGETABLE SCI
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Problems solved by technology

At present, the inbred lines obtained by conventional breeding methods for waxy corn materials cannot produce sweetened waxy corn, nor c

Method used

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Example Embodiment

[0026] The Nannong Ziyunuo No. 1 and Jingtian No. 3 seeds used in the present invention are all commercially available.

[0027] Specific steps for breeding sweet waxy corn inbred line TN-01 using the method of the present invention:

[0028] The first step: cross the purple waxy corn Nannong Ziyunuo 1 as the female parent and super-sweet corn Jingtian 3 as the male parent to obtain hybrid ears.

[0029] Step 2: Choose purple seeds for planting, backcross with Nannong Ziyunuo No. 1 to obtain backcross ears.

[0030] Step 3: Select purple waxy grains from the ears obtained in the second step, plant them as single seeds and self-bred them all in bagging, select the ears with super-sweet grains, select all the purple waxy grains and sown them individually , Self-bred per plant with bagging.

[0031] Step 4: Plant the white super-sweet kernels on the ears obtained in the third step, combine quality, resistance and plant type to select continuous selfing for 3 to 4 generations, that is, the...

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Abstract

The invention relates to a breeding method for a sweet glutinous maize self-bred line, which comprises the following steps of: 1) hybridizing Nannongziyunuo No.1 serving as purple glutinous maize and Jingtian No.3 serving as ultra-sweet maize to obtain hybridized ears; 2) planting purple seeds, and backcrossing by using the Nannongziyunuo No.1 as a male parent to obtain backcrossed ears; 3) planting purple glutinous seeds, performing bagging selfing, namely selecting and remaining the ears of ultra-sweet seeds, picking all purple glutinous seeds of the ears out, and performing single-grain sowing and single-plant bagging selfing; and 4) selecting and remaining the ears of the ultra-sweet seeds, picking white ultra-sweet seeds of the ears, sowing, performing 3 to 4 generations of continuous selfing by combining stress resistance and quality characters and selecting excellent individual plants to breed a stable sweet glutinous maize self-bred line TN-01. By the breeding method, the advantages of high quality, high stress resistance and high adaptability of the bred hybrid seeds are ensured, and the bred self-bred line can hybridize the glutinous maize and the ultra-sweet maize.

Description

technical field [0001] The invention relates to a method for breeding sweet and waxy corn inbred lines, and belongs to the technical field of breeding new agricultural varieties. Background technique [0002] Breeding of high-quality sweet waxy corn inbred lines is the basis of new varieties. With the improvement of people's living standards and the strengthening of health care awareness, new requirements have been put forward for the quality and commerciality of sweet waxy corn, especially sweetened waxy corn (the waxy and sweet seeds on the ears are arranged along with each other) and super sweet corn are becoming more and more popular. The more popular it is, the more cultivated area is expanding year by year, but there is a shortage of good varieties, so it is particularly important to breed inbred lines that can be formulated into high-quality sweet waxy and super-sweet corn. At present, the inbred lines obtained by conventional breeding methods for waxy corn materia...

Claims

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Application Information

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IPC IPC(8): A01H1/02
Inventor 戴惠学熊元忠陈舜权李英胡俏强
Owner NANJING INST OF VEGETABLE SCI
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