| 宽幅精播中行距与幅宽对小麦干物质积累与分配的影响 |
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| 引用本文： | 孙允超,彭科研,冯盛烨,冀传允,吕鹏,鞠正春.宽幅精播中行距与幅宽对小麦干物质积累与分配的影响[J].作物杂志,2022,38(5):130-45. |
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| 作者姓名： | 孙允超 彭科研 冯盛烨 冀传允 吕鹏 鞠正春 |
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| 作者单位： | 1聊城市农业科学院,252000,山东聊城2山东省农业技术推广中心,250100,山东济南 |
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| 基金项目： | 山东省现代农业产业技术体系小麦创新团队专项(SDAIT-01-19);山东省现代农业产业技术体系小麦创新团队专项(SDAIT-01-08);国家重点研发计划项目之粮食丰产增效科技创新专项(2017YFD0301003);国家小麦产业技术体系聊城试验站专项(CARS-3-2);聊城市小麦种质资源创新与利用工程技术中心专项 |
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| 摘 要： | 为探究小麦宽幅精播增产机理,设置了行距20、25和30cm,幅宽3、6、9、12和15cm,研究其对小麦花后干物质积累与分配的影响。结果表明,适宜的行距与幅宽可促进产量的提高,幅宽小于9cm时,产量随幅宽的增加而增加,幅宽大于9cm时,籽粒产量随幅宽增加而减少,以行距25cm且幅宽9cm产量最高;花后21~28d是籽粒干物质积累最快的时期,花后14~28d是小麦地上部干物质转化最快的时期;行距与幅宽的增大增加了各营养器官群体干物质积累量,但行距大于25cm、幅宽大于9cm时抑制了营养器官中干物质向籽粒的转运。
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| 关 键 词： | 小麦 宽幅精播 行距 幅宽 干物质积累 干物质分配 |
| 收稿时间： | 2021-05-06 |
Effects of Row Spacing and Seedling Belt Width on Dry Matter Accumulation and Distribution of Wheat in Wide Refined Sowing |
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| Sun Yunchao,Peng Keyan,Feng Shengye,Ji Chuanyun,Lü,peng,Ju Zhengchun.Effects of Row Spacing and Seedling Belt Width on Dry Matter Accumulation and Distribution of Wheat in Wide Refined Sowing[J].Crops,2022,38(5):130-45. |
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| Authors: | Sun Yunchao Peng Keyan Feng Shengye Ji Chuanyun Lü peng Ju Zhengchun |
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| Affiliation: | 1Liaocheng Academy of Agricultural Sciences, Liaocheng 252000, Shandong, China2Shandong Agricultural Technology Extension Center, Ji’nan 250100, Shandong, China |
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| Abstract: | In order to enrich the mechanisms of wide refined sowing and yield increase in wheat, we researched the effects of three row spacings (20, 25, 30cm) and five seedling belt widths (3, 6, 9, 12, 15cm) on accumulation and distribution of dry matter after anthesis. The results showed that the suitable row spacing and seedling belt width could increase yield. When the seedling belt width was less than 9cm, yield increased with the increase of the width, while when the seedling belt width was more than 9cm, yield decreased with the increase of the width. The maximum yield was obtained with row spacing of 25cm and seedling belt width of 9cm. The fastest period of dry matter accumulation of grain was from 21 to 28 days after anthesis, and the fastest period of dry matter transformation of the aboveground part of wheat was from 14 to 28 days after anthesis. The increase of row spacing and seedling belt width increased the accumulation of group dry matter of each vegetative organ, but when row spacing was more than 25cm and seedling belt width was more than 9cm, the transportation of dry matter from vegetative organs to grains was inhibited. |
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| Keywords: | Wheat Wide refined sowing Row spacing Seedling belt width Dry matter accumulation Dry matter distribution |
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