| 摘要: |
| 为研究甜荞不同花期的籽粒灌浆特性，以丰甜1号为试验材料，在不同花期进行剪花处理，测定其百粒鲜重、含水量、百粒干重，并用Richards方程进行拟合分析。结果表明，百粒鲜重表现为随花期的延后呈先增后减趋势，含水量逐渐递减，百粒干重呈现“S”型曲线。花期靠前的甜荞灌浆物质相对充分，生长迅速；花期靠后的灌浆物质来源相对不足，阻碍其灌浆过程的进行。 |
| 关键词: 丰甜1号 剪花处理 Richards方程 灌浆 |
| DOI：10.13610/j.cnki.1672-352x.20160512.017 |
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| 基金项目:国家重点基础研究发展计划（973计划）前期研究专项（2014CB160312）, 国家自然科学基金（31360318, 31401315, 31560358）, 贵州省普通高等学校荞麦栽培生理及推广特色重点实验室建设项目（黔教合KY字[2015]328）贵州省优秀青年科技人才培养对象专项资金（黔科合人字[2013]03号）共同资助。 |
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| Effects of cutting flowers on grain-filling of common buckwheat at different flowering stages |
| KONG Dezhang,SONG Yuxue,WANG Yu,ZHAO Quan,ZHANG Yu,XIAO Mei,HUANG Kaifeng |
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| Abstract: |
| In this article, common buckwheat Fengtian 1 was used to study the grain-filling process using Richards’s equation with different treatments of cutting flower. The 100-grain flesh weight, water content and 100-grain dry weight were also determined. The results showed that 100-grain dry weight exhibited an “S” curve. The 100-grain flesh weight increased firstly and then reduced as the flowering phase postponed. Filling material was relatively sufficient in Fengtian 1 at the early flowering phase and it increased rapidly. Filling material was relatively shortage in Fengtian 1 at the late flowering phase hindering the process of grain-filling. |
| Key words: Fengtian 1 cutting flower Richards’s equation grain-filling |