Method for breeding rice three-nursery breeder seeds by raising rice seedlings on seeding tray

A technology of original seeds and seedling trays in three gardens, applied in rice cultivation, botany equipment and methods, horticulture, etc., can solve problems such as difficulty in guaranteeing the purity of original seeds, mixed sowing and transplanting links, and large differences in growth of individual plants, etc., to achieve The effect of eliminating the chance of seed mixing, fast leaf emergence and small coefficient of variation

Active Publication Date: 2014-08-13
郯城县种子公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the confusion easily caused by each link of the existing original rice seed production method, especially the rice grain residue in the seedling field (weedy rice seed or rice shattering in the previous year) and the mixing of the sowing and transplanting links, and the transplanting slows down the seedlings. slow, the growth of individual plants varies greatly, and the purity of the original seed produced is difficult to guarantee. A method for breeding original rice seedlings in seedling trays is provided.

Method used

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  • Method for breeding rice three-nursery breeder seeds by raising rice seedlings on seeding tray
  • Method for breeding rice three-nursery breeder seeds by raising rice seedlings on seeding tray
  • Method for breeding rice three-nursery breeder seeds by raising rice seedlings on seeding tray

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Experimental program
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Effect test

Embodiment 1

[0055] Embodiment 1: the original seed production of three gardens of sunshine 200 rice varieties

[0056] The variety used in the present invention is Sunshine 200, which was independently selected and bred by the Tancheng County Seed Company. It was approved by the Shandong Provincial Crop Variety Approval Committee in 2005 (approval number: Lu Nong Shen Zi [2005] No. 037), and passed the national crop variety in 2008. Approved by the Approval Committee (approval number: National Approved Rice 2008043).

[0057] S1: Choose a typical single ear of Sunshine 200

[0058] (1) Single panicle selection in the field: From the panicle nursery of Sunshine 200, select rice with this variety according to the plant height, plant type, leaf color, ear type, grain type, awn color, growth period and other traits of the Sunshine 200 rice variety Typical characteristics, 300 ears per ear without rice blast and false smut grains.

[0059] Table 1 Comparison table of typical traits of single...

Embodiment 2

[0087] Embodiment 2: the original seed production of three gardens of sunshine 600 rice variety

[0088] The variety used in the present invention is Sunshine 600, which was independently selected and bred by the Tancheng County Seed Company, and was approved by the Shandong Provincial Crop Variety Approval Committee in 2012 (approval number: Lu Nong Shen Zi [2012] No. 022).

[0089] S1: Select a typical single ear of Sunshine 600

[0090] (1) Single panicle selection in the field: From the panicle row nursery of Sunshine 600, select rice varieties with this variety according to the plant height, plant type, leaf color, ear type, grain type, awn color, maturity period and other traits of the Yangguang 600 rice variety. Typical characteristics, 300 ears per ear without rice blast and false smut grains.

[0091] Table 5 Comparison table of typical traits of single panicle selected from Yangguang 600 rice varieties (Shandong-Tancheng, 2012)

[0092]

[0093] When selecting i...

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PUM

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Abstract

The invention discloses a method for breeding rice three-nursery breeder seeds by raising rice seedlings on a seeding tray, is suitable for the planting selection of rice filial generation, and belongs to the technical field of rice breeding. By the method, the problems of residues of rice grains (weed rice seeds or shattered rice in the previous year) of rice seedling beds, assorted seeding and transplanting links, slow seedling recovery after transplanting, large difference of single-plant growth and difficulty in guarantee of the purity of produced breeder seeds are solved. According to the method for producing the rice three-nursery breeder seeds, the production technology of rice ear-row nurseries, ear-line nurseries and breeder seed nurseries and the technology of raising the rice seedlings on the rice plastic seeding tray are combined, the rice seedlings of which the roots have nutritional soil blocks and which are easy to disperse with each other are cultivated by using a plastic seeding tray bowl, and the ear-row (line) nurseries are established by fixed-point single-bowl rice seedling transplantation in fields to perform the comparison of choice of the ear-row (line) nurseries, so that the opportunity of mixing seeds of the rice seedling beds is avoided completely to facilitate the improvement of the selection efficiency, propagation coefficients and purity of the breeder seeds.

Description

technical field [0001] The invention relates to a method for raising and propagating original rice three nurseries in a seedling tray, which is also applicable to the planting selection of rice hybrid offspring, and belongs to the technical field of rice breeding. Background technique [0002] According to the technical operation regulations for the production of original rice seeds (GB / T17316-1998), the production method of the original rice seeds in the three nurseries is to select high-quality single ears, threshing single ears, packing and storing, sowing seedlings or whole ear seedlings, single plant Transplanting, establishment of panicle rows, comparative identification of panicle rows, selection of panicle rows to establish panicle lines, comparative identification of panicle lines, mixing of superior lines, and production of original seeds. Practice has shown that these steps are easy to cause confusion, especially the residue of rice grains in the seedling field (w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01G22/22
Inventor 杨百战杜绍印谢华玉
Owner 郯城县种子公司
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