CN112189400A - Seed quality control method for hybrid japonica rice - Google Patents
Seed quality control method for hybrid japonica rice Download PDFInfo
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- CN112189400A CN112189400A CN202011079378.7A CN202011079378A CN112189400A CN 112189400 A CN112189400 A CN 112189400A CN 202011079378 A CN202011079378 A CN 202011079378A CN 112189400 A CN112189400 A CN 112189400A
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- Prior art keywords
- seeds
- japonica rice
- harvesting
- hybrid japonica
- quality control
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D91/00—Methods for harvesting agricultural products
- A01D91/04—Products growing above the soil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention discloses a seed quality control method of hybrid japonica rice, which comprises the following steps: harvesting when the female parent of the hybrid japonica rice grows to 45-50 days after the full heading period to obtain seeds; and drying the seeds at 38-44 ℃ for 25-50 hours. The embodiment of the invention provides a seed quality control method of hybrid japonica rice, the obtained seeds have good maturity, high activity and good germination rate, and meanwhile, the seeds are dried to control the moisture in the seeds to be below 14.5 percent, so that the seeds can germinate and have high germination rate which can reach above 95 percent, and the seeds cannot mildew. Thereby leading the seeds to have higher quality and promoting the industrialized development of the hybrid japonica rice.
Description
Technical Field
The invention belongs to the field of agricultural rice seed production, and relates to a seed quality control method for hybrid japonica rice.
Background
The research, popularization and application of the hybrid indica rice in China have achieved remarkable achievements, however, the development of the hybrid japonica rice is slow, and the hybrid japonica rice accounts for about 3% of the total planting area of the japonica rice. The hybrid japonica rice is one of the most likely food crops with breakthrough progress, leap-type development and the largest contribution rate to the total food yield in the near term, and is a new growth point for increasing the food yield.
An important factor for limiting the popularization and application of the japonica hybrid rice at present is the quality of the japonica hybrid rice seeds.
The timing of harvesting the seeds and the drying process are very critical, and the quality of the seeds is often problematic due to the influence of the harvesting time and the drying temperature. Therefore, it is necessary to establish a seed quality control technology for the hybrid japonica rice, thereby promoting the industrial development of the hybrid japonica rice.
Disclosure of Invention
The invention aims to provide a seed quality control method of hybrid japonica rice. The method provided by the invention can better ensure the quality of the hybrid japonica rice seeds, improve the quality of the hybrid japonica rice seeds and promote the industrial development of the hybrid japonica rice.
The invention provides a seed quality control method of hybrid japonica rice, which comprises the following steps:
harvesting when the female parent of the hybrid japonica rice grows to 45-50 days after the full heading period to obtain seeds;
and drying the seeds at 38-44 ℃ for 25-50 hours.
Specifically, the hybrid japonica rice is Huayou 14, Liaoyou 9915, Tianlong you 619, Qiuyou Jinfeng, Shenyou 26 or Shenyou 28.
Further, the hybrid japonica rice is Huayou 14.
Specifically, the drying temperature is 38-42 ℃.
Specifically, the drying temperature is 40 ℃.
Specifically, the drying time is 25 hours.
In particular, a small and medium-sized harvester is adopted for harvesting.
Furthermore, the harvesting speed is 6-8 mu/h.
Further, the harvesting speed was 6 acres/hour.
Compared with the prior art, the invention has the beneficial effects that:
the embodiment of the invention provides a seed quality control method of hybrid japonica rice, which comprises the steps of harvesting 45-50 days after the female parent of the hybrid japonica rice grows to the full-spike period to obtain seeds; the harvested seeds have good maturity, high activity and good germination rate, and meanwhile, the seeds are dried at the temperature of 38-44 ℃ for 25-50 hours, the method can effectively control the moisture in the seeds, which is a key factor of seed germination, but the seeds are mildewed in the storage process due to the fact that the moisture is too high, so that the embodiment of the invention can quickly control the moisture in the seeds to be below 14.5%, the seeds can germinate, the germination rate is high and can reach more than 95%, and the seeds are not mildewed. Thereby leading the seeds to have higher quality and promoting the industrialized development of the hybrid japonica rice.
Detailed Description
The present invention is further illustrated by the following examples. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and process are given, but the scope of the present invention includes, but is not limited to, the following embodiments.
The invention provides a seed quality control method of hybrid japonica rice, which comprises the following steps:
harvesting when the female parent of the hybrid japonica rice grows to 45-50 days after the full heading period to obtain seeds;
and drying the seeds at 38-44 ℃ for 25-50 hours.
Specifically, the hybrid japonica rice is Huayou 14, Liaoyou 9915, Tianlong you 619, Qiuyoujinfeng, Shenyou 26 or Shenyou 28.
Further, the hybrid japonica rice is Huayou 14.
Specifically, the drying temperature is 38-42 ℃.
Specifically, the drying temperature was 40 ℃.
Specifically, the drying time was 25 hours.
In particular, a small and medium-sized harvester is adopted for harvesting.
Furthermore, the harvesting speed is 4-8 mu/h.
Further, the harvesting speed was 6 acres/hour.
Comparative example
The hybrid japonica rice provided by the embodiment of the invention is Huayou 14, the Huayou 14 is bred by Shanghai city agricultural academy, the Huayou 14 (Hu nong trial rice (2008) No. 001) is a certified variety of Shanghai city, the female parent is Shen 9A, the male parent is reproduction 14, wherein Shen 9A obtains the national plant new variety right (CNA20110864.8), and the female parent and the male parent can be obtained from Shanghai city agricultural academy of sciences of the breeding unit through a signatory breeding protocol.
Harvesting the female parent 45 days after the full heading period to obtain seeds, and during harvesting, adopting a small and medium-sized long-time field-preserving harvester, setting the harvesting speed of the harvester to be 10 mu/h respectively, and setting the harvesting loss rate to be 3.1% at the speed of 10 mu/h.
And drying the seeds at the temperature of 46 ℃ for 40 hours, wherein the water content in the seeds is 13.2%. Moisture is a key factor of seed germination, wherein the germination rate is an important standard for detecting the quality of seeds, and the germination rate of the seeds provided by the embodiment 1 of the invention is detected and is 90.8%.
Example 1
The hybrid japonica rice provided by the embodiment of the invention is Huayou 14, the Huayou 14 is bred by Shanghai city agricultural academy, the Huayou 14 (Hu nong trial rice (2008) No. 001) is a certified variety of Shanghai city, the female parent is Shen 9A, the male parent is reproduction 14, wherein Shen 9A obtains the national plant new variety right (CNA20110864.8), and the female parent and the male parent can be obtained from Shanghai city agricultural academy of sciences of the breeding unit through a signatory breeding protocol.
Harvesting the female parent 45 days after the full heading period to obtain seeds, and when harvesting, adopting a small and medium-sized long-time field-preserving harvester, setting the harvesting speed of the harvester to be 4 mu/h respectively, and when harvesting at the speed of 4 mu/h, the harvesting loss rate is 0.7%.
And drying the seeds at 38 ℃ for 25 hours, wherein the water content in the seeds is 15.0%. Moisture is a key factor of seed germination, wherein the germination rate is an important standard for detecting the quality of seeds, and the germination rate of the seeds provided by the embodiment 1 of the invention is detected and is 98.7%.
Example 2
The hybrid japonica rice provided by the embodiment of the invention is Huayou 14, the Huayou 14 is bred by Shanghai city agricultural academy, the Huayou 14 (Hu nong trial rice (2008) No. 001) is a certified variety of Shanghai city, the female parent is Shen 9A, the male parent is reproduction 14, wherein Shen 9A obtains the national plant new variety right (CNA20110864.8), and the female parent and the male parent can be obtained from Shanghai city agricultural academy of sciences of the breeding unit through a signatory breeding protocol.
Harvesting 50 days after the female parent grows to be full of ears to obtain seeds, wherein when harvesting, a small and medium-sized long-time field-preserving harvester is adopted, the harvesting speed of the harvester is set to be 6 mu/h, and when harvesting is carried out at the speed of 6 mu/h, the harvesting loss rate is 0.9%. The cost of the harvester and the price of losing the seed production yield are comprehensively considered, and the speed of 6 mu/hour is the best.
And drying the seeds at 44 ℃ for 50 hours, wherein the water content in the seeds is 12.5%. Moisture is a key factor of seed germination, wherein the germination rate is an important standard for detecting the quality of seeds, and the germination rate of the seeds provided by the embodiment 1 of the invention is detected and is 95.4%.
Example 3
The hybrid japonica rice provided by the embodiment of the invention is Huayou 14, the Huayou 14 is bred by Shanghai city agricultural academy, the Huayou 14 (Hu nong trial rice (2008) No. 001) is a certified variety of Shanghai city, the female parent is Shen 9A, the male parent is reproduction 14, wherein Shen 9A obtains the national plant new variety right (CNA20110864.8), and the female parent and the male parent can be obtained from Shanghai city agricultural academy of sciences of the breeding unit through a signatory breeding protocol.
Harvesting the female parent 47 days after the full heading period to obtain seeds, and during harvesting, adopting a small and medium-sized long-time field-preserving harvester, setting the harvesting speed of the harvester to be 8 mu/h respectively, and setting the harvesting loss rate to be 1.7% at the speed of 8 mu/h.
And drying the seeds at 42 ℃ for 40 hours, wherein the water content in the seeds is 13.8%. Moisture is a key factor of seed germination, wherein the germination rate is an important standard for detecting the quality of seeds, and the germination rate of the seeds provided by the embodiment 1 of the invention is detected and is 98.5%.
Example 4
The hybrid japonica rice provided by the embodiment of the invention is Huayou 14, the Huayou 14 is bred by Shanghai city agricultural academy, the Huayou 14 (Hu nong trial rice (2008) No. 001) is a certified variety of Shanghai city, the female parent is Shen 9A, the male parent is reproduction 14, wherein Shen 9A obtains the national plant new variety right (CNA20110864.8), and the female parent and the male parent can be obtained from Shanghai city agricultural academy of sciences of the breeding unit through a signatory breeding protocol.
Harvesting the female parent 46 days after the full heading period to obtain seeds, and during harvesting, adopting a small and medium-sized long-time field-preserving harvester, setting the harvesting speed of the harvester to be 8 mu/h respectively, and setting the harvesting loss rate to be 1.7% at the speed of 8 mu/h.
And drying the seeds at 40 ℃ for 40 hours, wherein the water content in the seeds is 14.0%. Moisture is a key factor of seed germination, wherein the germination rate is an important standard for detecting the quality of seeds, and the germination rate of the seeds provided by the embodiment 1 of the invention is detected and is 98.9%.
The embodiment of the invention provides a seed quality control method of hybrid japonica rice, which comprises the steps of harvesting 45-50 days after the female parent of the hybrid japonica rice grows to the full-spike period to obtain seeds; the harvested seeds have good maturity, high activity and good germination rate, and meanwhile, the seeds are dried at the temperature of 38-44 ℃ for 25-50 hours, the method can effectively control the moisture in the seeds, which is a key factor of seed germination, but the seeds are mildewed in the storage process due to the fact that the moisture is too high, so that the embodiment of the invention controls the moisture in the seeds to be below 14.5%, ensures that the seeds can germinate, has high germination rate which can reach more than 95%, and does not mildew the seeds. Thereby leading the seeds to have higher quality and promoting the industrialized development of the hybrid japonica rice.
Claims (9)
1. A seed quality control method of hybrid japonica rice is characterized by comprising the following steps:
harvesting when the female parent of the hybrid japonica rice grows to 45-50 days after the full heading period to obtain seeds;
and drying the seeds at 38-44 ℃ for 25-50 hours.
2. The method as claimed in claim 1, wherein the hybrid japonica rice is Huayou 14, Liaoyou 9915, Tianlongyou 619, Qiuyoujinfeng, Shenyou 26 or Shenyou 28.
3. The seed quality control method according to claim 2, wherein the hybrid japonica rice is oryza sativa 14.
4. The method of claim 1, wherein the temperature of the drying is 38-42 ℃.
5. The method of claim 1, wherein the drying temperature is 40 ℃.
6. The method of claim 1, wherein the drying time is 25 hours.
7. The seed quality control method of claim 1, wherein a small and medium sized harvester is used for harvesting.
8. The method of seed quality control according to claim 7, wherein the harvest speed is 4-8 acres/hour.
9. The method of seed quality control of claim 7, wherein the harvest speed is 6 acres/hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011079378.7A CN112189400A (en) | 2020-10-10 | 2020-10-10 | Seed quality control method for hybrid japonica rice |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011079378.7A CN112189400A (en) | 2020-10-10 | 2020-10-10 | Seed quality control method for hybrid japonica rice |
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| CN112189400A true CN112189400A (en) | 2021-01-08 |
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| CN202011079378.7A Pending CN112189400A (en) | 2020-10-10 | 2020-10-10 | Seed quality control method for hybrid japonica rice |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102835302A (en) * | 2012-09-12 | 2012-12-26 | 上海市农业科学院 | Method for producing seeds of hybrid japonica rice mechanically and fully |
| CN102960236A (en) * | 2012-11-06 | 2013-03-13 | 袁隆平农业高科技股份有限公司 | Full-mechanical seed production method of hybrid rice |
| US20200196545A1 (en) * | 2016-08-17 | 2020-06-25 | Hunan Agricultural University | Method for breeding small-grain sterile rice line and simple method for producing hybrid rice seed |
-
2020
- 2020-10-10 CN CN202011079378.7A patent/CN112189400A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102835302A (en) * | 2012-09-12 | 2012-12-26 | 上海市农业科学院 | Method for producing seeds of hybrid japonica rice mechanically and fully |
| CN102960236A (en) * | 2012-11-06 | 2013-03-13 | 袁隆平农业高科技股份有限公司 | Full-mechanical seed production method of hybrid rice |
| US20200196545A1 (en) * | 2016-08-17 | 2020-06-25 | Hunan Agricultural University | Method for breeding small-grain sterile rice line and simple method for producing hybrid rice seed |
Non-Patent Citations (2)
| Title |
|---|
| 陈新红 等: "烘干温度与时间对不同收获期下水稻种子含水量和活力的影响及相关分析", 《西南农业学报》 * |
| 黄在进 等: "影响杂交粳稻品质形成的环境与栽培因子", 《中国种业》 * |
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Application publication date: 20210108 |