Effects of Population Regulation on the Source–Sink System of Hybrid Wheat Jingmai 6
Hybrid wheat is considered to be one of the main ways to greatly improve the wheat yield in the future, and population construction is an important factor affecting their yield heterosis formation. In order to clarify the effect of population regulation of hybrid wheat on source–sink systems, the tw...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/10/2530 |
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| author | Weibing Yang Zheng Wang Liping Ren Zhijie Ye Xinhuan Gao Jiangang Gao Hongyao Lou Bing Du Zhaobo Chen Shengquan Zhang |
| author_facet | Weibing Yang Zheng Wang Liping Ren Zhijie Ye Xinhuan Gao Jiangang Gao Hongyao Lou Bing Du Zhaobo Chen Shengquan Zhang |
| author_sort | Weibing Yang |
| collection | DOAJ |
| description | Hybrid wheat is considered to be one of the main ways to greatly improve the wheat yield in the future, and population construction is an important factor affecting their yield heterosis formation. In order to clarify the effect of population regulation of hybrid wheat on source–sink systems, the two-line hybrid wheat variety Jingmai 6 was used to carry out relevant research in this experiment. The leaf area index (LAI) of Jingmai 6 showed an increasing trend, while the tiller-spike rate exhibited a downward trend with the increase of planting density. The total accumulation of dry matter at maturity increased with the increase of planting density, among which the relative proportion of dry matter pre-anthesis gradually increased, while that after anthesis gradually decreased. The sink capacity and spikes number of hybrid wheat were positively correlated with the grain yield. There was higher sink capacity, spike to leaf ratio and grain to leaf ratio under A2 and A3 conditions. With the increase of planting density, the hybrid wheat yield showed a unimodal curve, and A3 had the highest grain yield. Combined with the change trend of dry matter accumulation before and after anthesis, it was proved that suitable planting density was the key to obtaining high yield of hybrid wheat. |
| first_indexed | 2024-03-09T20:52:11Z |
| format | Article |
| id | doaj.art-073ccb4a7b944c0886c1cacc4e71f300 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T20:52:11Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-073ccb4a7b944c0886c1cacc4e71f3002023-11-23T22:28:48ZengMDPI AGAgronomy2073-43952022-10-011210253010.3390/agronomy12102530Effects of Population Regulation on the Source–Sink System of Hybrid Wheat Jingmai 6Weibing Yang0Zheng Wang1Liping Ren2Zhijie Ye3Xinhuan Gao4Jiangang Gao5Hongyao Lou6Bing Du7Zhaobo Chen8Shengquan Zhang9Institute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaInstitute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaInstitute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaInstitute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaInstitute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaInstitute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaInstitute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaInstitute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaInstitute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaInstitute of Hybrid Wheat, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, ChinaHybrid wheat is considered to be one of the main ways to greatly improve the wheat yield in the future, and population construction is an important factor affecting their yield heterosis formation. In order to clarify the effect of population regulation of hybrid wheat on source–sink systems, the two-line hybrid wheat variety Jingmai 6 was used to carry out relevant research in this experiment. The leaf area index (LAI) of Jingmai 6 showed an increasing trend, while the tiller-spike rate exhibited a downward trend with the increase of planting density. The total accumulation of dry matter at maturity increased with the increase of planting density, among which the relative proportion of dry matter pre-anthesis gradually increased, while that after anthesis gradually decreased. The sink capacity and spikes number of hybrid wheat were positively correlated with the grain yield. There was higher sink capacity, spike to leaf ratio and grain to leaf ratio under A2 and A3 conditions. With the increase of planting density, the hybrid wheat yield showed a unimodal curve, and A3 had the highest grain yield. Combined with the change trend of dry matter accumulation before and after anthesis, it was proved that suitable planting density was the key to obtaining high yield of hybrid wheat.https://www.mdpi.com/2073-4395/12/10/2530hybrid wheatpopulation regulationsource–sink relationsyield |
| spellingShingle | Weibing Yang Zheng Wang Liping Ren Zhijie Ye Xinhuan Gao Jiangang Gao Hongyao Lou Bing Du Zhaobo Chen Shengquan Zhang Effects of Population Regulation on the Source–Sink System of Hybrid Wheat Jingmai 6 Agronomy hybrid wheat population regulation source–sink relations yield |
| title | Effects of Population Regulation on the Source–Sink System of Hybrid Wheat Jingmai 6 |
| title_full | Effects of Population Regulation on the Source–Sink System of Hybrid Wheat Jingmai 6 |
| title_fullStr | Effects of Population Regulation on the Source–Sink System of Hybrid Wheat Jingmai 6 |
| title_full_unstemmed | Effects of Population Regulation on the Source–Sink System of Hybrid Wheat Jingmai 6 |
| title_short | Effects of Population Regulation on the Source–Sink System of Hybrid Wheat Jingmai 6 |
| title_sort | effects of population regulation on the source sink system of hybrid wheat jingmai 6 |
| topic | hybrid wheat population regulation source–sink relations yield |
| url | https://www.mdpi.com/2073-4395/12/10/2530 |
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