Breeding method of fresh corn with crisp and tender pericarp

A fresh-eating corn, crisp and tender type technology, applied in the fields of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of low taste score, etc., and achieve the effects of accurate selection results, crisp and tender taste, and easy operation.

Pending Publication Date: 2021-11-23
SHENYANG JINSEGU SPECIAL CORN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some tasting samples, it often appears that although the measured values ​​of skin residue rate and skin thickness are high, the tasting score is not necessarily low.

Method used

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  • Breeding method of fresh corn with crisp and tender pericarp

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1. Breeding of purple waxy corn with crisp and tender pericarp

[0054] 1. Original material

[0055] Three varieties of purple fresh glutinous corn varieties Heinuo 600 (Yu Shen Yu 20170014), Hei Nuo 660 (Guo Shen Yu 20200524) and Tian Hei Nuo 1 (Yue Shen Yu 2006019) were selected, and 300 plants of the F1 generation were sown in equal amounts. , mixed pollination naturally under isolation conditions, and harvested.

[0056] 2. Diploid Induction

[0057] Sow 1,000 seeds harvested from the previous generation, and use the previously invented "Breeding Method for Inducing Maize Parthenogenesis with Trifluralin" (Patent No. ZL201110432914.1) to induce diploids and fix the genotype. Obtain 700 diploid induced seeds.

[0058] 3. Identification of crispness and tenderness

[0059] Induced 1 generation by sowing, selfed, and obtained 1 induced single plant. Sampling during the harvesting period, breaking off the upper 1 / 3-1 / 2 of the ears for measurement, and k...

Embodiment 2

[0069] Embodiment 2, Breeding of crisp and tender type white waxy corn

[0070] 1. Original material

[0071] 300 plants of the F1 generation were selected to mix and sow the white glutinous fresh corn varieties Shennuo 3 (Liao Nong Shen Zheng Zi No. 790) and Wan Nuo 2000 (Guo Shen Yu 2015032) with good comprehensive traits, and mixed naturally under isolation conditions. Pollination, seed.

[0072] 2. Diploid Induction

[0073] Sow 1,000 plants harvested from the previous generation, and use the previously invented "Breeding Method for Inducing Maize Parthenogenesis with Trifluralin" (Patent No. ZL201110432914.1) to induce diploids and fix the genotype. Obtain 600 diploid induced seeds.

[0074] 3. Primary identification of crispness and tenderness

[0075] Induced 1 generation by sowing, selfed, and obtained 1 induced single plant. Sampling during the harvesting period, breaking off the upper 1 / 3-1 / 2 of the ears for measurement, and keeping the seeds in the remaining lo...

Embodiment 3

[0085] Embodiment 3, the selection and utilization of yellow waxy corn with crisp and tender pericarp

[0086] 1. Original material

[0087] Select the yellow glutinous fresh corn variety Kennian 1 (National Examination Jade 2003031) with good comprehensive properties, sow F1 under isolation conditions, naturally mix pollination, and save the seeds; continue to sow F2 under isolation conditions, naturally mix pollination, and obtain F3 seeds .

[0088] 2. Diploid Induction

[0089] Sow 1,000 plants harvested from the previous generation, and use the previously invented "Breeding Method for Inducing Maize Parthenogenesis with Trifluralin" (Patent No. ZL201110432914.1) to induce diploids and fix the genotype. 650 seeds of the first generation of diploid induction were obtained.

[0090] 3. Identification and screening of crispness and tenderness

[0091] The seeds of the induced generation 1 were sown and selfed to obtain the ears of the induced generation 1 plant. Sampling...

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Abstract

The invention discloses a breeding method of fresh corn with crisp and tender pericarp. The breeding method comprises the following steps: (1) breeding an original material; (2) sowing induction single grains, wherein two obtaining methods of the induction single grains comprise a method of first screening and later induction and a method of first induction and later screening; sowing the induction single grains, and conducting selfing to obtain induced first-generation ears; wherein a brittleness detecting and screening method comprises the following steps: corn kernels in a fresh eating period are taken as detection samples, the brittleness and tenderness are measured according to the force (unit: Newton) needed by a measuring needle with the diameter of 1.0 mm to pierce pericarp, and the measured value is less than 2.1 N. and (3) carrying out pericarp detection and phenotype identification to obtain the fresh corn selfing line with crisp and tender pericarp. Compared with common fresh corn, the fresh corn with crisp and tender pericarp has the advantages that the cooking quality is obviously improved, the pericarp strength measured value is obviously reduced, the palatability is greatly improved, the pericarp is crisp and tender, and the taste is free of pericarp residues; and through combination of the crisp and tender pericarp type selfing line and the non-crisp and tender type selfing line, the pericarp residue degree can be obviously improved.

Description

technical field [0001] The invention relates to the field of crop breeding, in particular to a breeding method for fresh corn with crisp and tender pericarp. Background technique [0002] In fresh corn, palatability is the most critical indicator to measure the quality of a variety. Palatability is also called mouthfeel, as the name suggests, refers to the feeling when you eat it in your mouth. Regarding the palatability of fresh corn, my country defines it as cooking quality and formulates corresponding indicators, which mainly include: sweetness, waxiness, tenderness, smell, flavor, color and thickness of skin. Among these indicators, sweetness and glutinousness are undoubtedly one of the important indicators, but due to the simple genetics, abundant resources, and relatively easy breeding of traits. The peel is a trait controlled by multiple genes and the genetic relationship is complex, so it is most difficult to improve the palatability of the peel. Therefore, in a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 史振声孙淑凤张喜华王健韩金玲杨敏
Owner SHENYANG JINSEGU SPECIAL CORN
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