Seed preparation method for waxy maize hybrids of Zhenuoyu 7

A hybrid and waxy corn technology, which is applied in the fields of botanical equipment and methods, applications, plant genetic improvement, etc., can solve the problems of slow development and utilization, small processing volume, late start, etc., and achieve the effect of improving planting benefits

Inactive Publication Date: 2015-11-11
浙江省东阳玉米研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research and utilization of waxy corn in China not only started late, but also progressed very slowly. It is mainly used as fresh food, and the a...

Method used

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  • Seed preparation method for waxy maize hybrids of Zhenuoyu 7
  • Seed preparation method for waxy maize hybrids of Zhenuoyu 7
  • Seed preparation method for waxy maize hybrids of Zhenuoyu 7

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Embodiment 1

[0033] Example 1: The specific breeding process of the waxy corn hybrid Zhe Nuoyu No. 7 of the present invention

[0034] Zhe Nuoyu No. 7 was crossed in Dongyang Maize Research Institute of Zhejiang Province in the spring of 2010 with the self-selected line W321 as the female parent and the self-selected line Lan 158-6 as the male parent.

[0035] The self-selected line W321 mentioned in it is a waxy two-ring line selected from Baitiannuo 1, a self-selected combination of Dongyang Maize Institute, which was formed through 8 generations of self-crossing.

[0036] The male parent, Lan 158-6, is a cross between the sweet corn inbred line Lan 158 (Australian sweet corn and Huazhen hybrid) as the female parent, and the waxy corn inbred line Tezao A (Zhongnuo 1 No. 2 ring line) as the male parent Finally, the double recessive homozygote was selected by segregation of offspring, and then selfed for 9 consecutive generations.

[0037] 1), output

[0038] In 2012, the average yield p...

Embodiment 2

[0052] Embodiment 2: The seed production technology of waxy corn hybrid Zhe Nuoyu No. 7 of the present invention

[0053] (1) Ensure safe isolation: No other corn crops can be planted within 500 meters around the seeding field;

[0054] (2) Simultaneous sowing: the self-selected line W321 is the female parent, and the self-selected line Lan 158-6 is the male parent, sowing at the same time; the second male parent is sown 3-5 days after the first male parent; pay attention to the male parent Avoid high temperature and prevent tassel degeneration;

[0055] (3) Appropriate row ratio: the ratio of male and female parents is 1:4, that is, every 4 rows of female parents are planted with 1 row of male parent, 5000 plants / mu are reserved for female parent, 1250 plants / mu are reserved for male parent, and the seed production yield It is more than 150 kg, and the high-yield field can reach 200 kg;

[0056] (4) Remove impurities and remove inferiority: before the father and mother pare...

Embodiment 3

[0060] Embodiment 3: Cultivation technique of waxy corn hybrid Zhe Nuoyu No. 7 of the present invention

[0061] 1) The spring sowing area in Zhejiang is generally from late March to early and mid-April, and the suitable sowing period for autumn corn is mid-to-late July. It is advisable to use nutrient pots for seedling cultivation, generally transplanting and planting at the 2-3 leaf stage, emphasizing transplanting with soil to facilitate the growth of the root system.

[0062] 2) The appropriate planting density is 3500-4000 plants / mu, pay attention to density control, and at the same time, cultivate soil in combination with intertillage and weeding.

[0063] 3) Fertilizer and water management: This variety likes fertilizer and water, and the seedling stage is strong. The early fertilizer and water management should be strengthened, and the seedlings should be established and planted early. 2 O) 14kg, phosphorus pentoxide (P 2 o 5 )6kg. Generally, 40-50% of the total fe...

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Abstract

The invention discloses a seed preparation method for waxy maize hybrids of Zhenuoyu 7, and belongs to the field of crop maize heterosis utilization. The seed preparation method for the waxy maize hybrids of Zhenuoyu 7 comprises the following steps: inbred line breeding, security isolation, sowing time regulation, appropriate row ratio selection, roguing, female parent emasculation, male parent removal, and harvest at the right moment. According to the method, the self-selection inbred line W321 is used as a female parent and the self-selection inbred line Lan 158-6 is used as a male parent to prepare the maize hybrids. The waxy maize hybrids of Zhenuoyu 7 obtained by the invention have the benefits of short growing period, high yield, high quality, wide adaptability and the like, and have a broad popularization and cultivation prospect.

Description

technical field [0001] The invention belongs to the field of utilization of corn heterosis in crops, and in particular relates to a seed production method of a waxy corn hybrid Zhenuoyu No. 7. Background technique [0002] The proportion of water-soluble protein and salt-soluble protein in waxy corn grain is relatively high, while the alcohol-soluble protein with low nutritional value is relatively low. The content of lysine is 16-74% higher than that of ordinary corn, and the content of protein is 3-6% higher than that of ordinary corn. %. After steaming, waxy corn has the characteristics of sticky soft fragrance, thin skin without slag, rich content, good palatability, and not easy to regenerate and harden after cooling. In addition, waxy corn contains various trace elements, especially zinc, iron, and selenium. Higher than ordinary corn, regular consumption helps prevent arteriosclerosis, lower blood cholesterol levels, and prevent intestinal diseases and cancers. It can...

Claims

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Application Information

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IPC IPC(8): A01H1/02
Inventor 谭禾平王桂跃赵福成包斐苏婷韩海亮
Owner 浙江省东阳玉米研究所
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