One-season mid-indica hybridrice seedling method

A technology of hybrid rice and dry seedling raising, which is applied in the field of seedling raising, can solve the problems that rice heterosis has not been applied, and it is difficult for the first generation of hybrid seeds to achieve the effects of increasing seed setting rate, improving rice quality, and reducing labor intensity

Inactive Publication Date: 2015-12-16
巢湖市农业技术推广中心
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Problems solved by technology

However, rice is a self-pollinating plant, and the stamens and stamens are born in the same flower. Because the flower is very small, and each flower only bears one seed, it is difficult to produce a large amount of rice by artificial emasculation. The first generation of hybrid seeds, so the heterosis of rice has not been applied for a long time

Method used

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Embodiment Construction

[0022] The present invention will be further described in detail according to the examples below.

[0023] In the present invention, the method for raising seedlings of medium indica hybrid rice in one season comprises:

[0024] (1) drying seeds, drying the seeds thinly for 1-2 days;

[0025] (2) Seed soaking, select 25% rice fresh amine emulsifiable oil to soak the rice seeds in water, and the rice seeds are all submerged in the mixed solution for 10-12 hours, and then waterlogged to directly accelerate germination and sow;

[0026] (3) germination, adopting the method of soaking in the sun and dew at night to carry out germination;

[0027] (4) Refined seedling field: wet seedling raising, seedling-to-field ratio is 1:8-10, plow and sun-dry 1-2 weeks before sowing, irrigate and soak the field, rough rake 2-3 days before sowing, then turn over, apply Fully decomposed organic fertilizer, raking and leveling the ditch to make a furrow, the width of the furrow is 4.5-5 feet, t...

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Abstract

The invention discloses a one-season mid-indica hybridrice seedling method comprising the following steps: 1, sunning seeds: thinning and sunning the seeds for 1-2 days; 2, soaking seeds: selecting 25% rice fresh amine missible oil to mix with water and to soak the rice seeds; 3, accelerating germination: using day-soaking night-exposure method to accelerate germination; 4, finely sorting a seedling bed: moisture seedling has a seedling field ratio of 1:8-10, and a dry seedling has a seedling field ratio of 1: 25-30; 5, sowing with proper amount at a proper time: weighting the seedling according to furrows, uniformly planting the seedling, timely using a flattening plate or a wooden shovel to slightly press rear cover soil after sowing, moistening seedlings, covering ahs muck, and covering pour soil on dry seedlings; 6, seedling bed management: a, moistening seedling, b, dry seedling, c, disease, insect, pests and weeds control. The advantages are that the method can improvea drought resistance ability, anti-pest ability, and anti-disease ability of the seedling, thus improving race quality.

Description

technical field [0001] The invention relates to a seedling raising method, in particular to a seedling raising method of one-season medium indica hybrid rice. Background technique [0002] Hybrid rice (hybrid rice) refers to the selection of two rice varieties that have certain differences in genetics and can complement each other in their excellent traits, and then hybridize to produce the first generation of hybrids with heterosis for production. This is hybrid rice. . Heterosis is a common phenomenon in the biological world, and using heterosis to improve crop yield and quality is one of the main achievements of modern agricultural science. [0003] Heterosis is a common phenomenon in the biological world, and it is one of the main achievements of modern agricultural science to use heterosis to improve the yield and quality of crops. Two rice varieties with certain differences in genetics and complementary excellent traits are selected for hybridization to produce the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01C1/00A01G22/22
CPCA01C1/00
Inventor 胡鹏
Owner 巢湖市农业技术推广中心
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