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甜荞不同花期剪花处理对籽粒灌浆特性的影响
孔德章,宋毓雪,王雨,赵权,张余,肖梅,黄凯丰
0
(贵州师范大学荞麦产业技术研究中心,贵阳 550001;贵阳护理职业学院,贵阳 550001)
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
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。
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
()
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

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