摘要
【目的】为更加客观、准确地综合评价郑麦369的产量和品质,探索优质小麦绿色高产高效栽培技术。【方法】以郑麦369为材料,研究不同播种密度、不同灌溉和施肥时间组合对冬小麦生长、产量和面粉品质的影响,并利用主成分分析和加权隶属函数分析法对郑麦369产量和品质进行综合评价。【结果】高密度处理下,郑麦369营养生长阶段的基本苗数、群体总茎数、株高和叶面积指数均显著高于低密度处理下的数值,而分蘖数和次生根则低于低密度处理;无论高密度还是低密度下,拔节期施肥和灌溉,郑麦369产量均显著高于同密度下的其他处理,千粒重较大可能是其主要原因;应用Z-score综合评价法对不同处理下郑麦369面粉品质的6项指标进行综合评价,结果表明水肥后移有利于提升面粉品质。主成分分析和加权隶属函数综合分析表明,低密度播种、施肥和灌溉后移既能实现郑麦369高产,又能改善面粉的品质特性。【结论】合理的管理措施能够实现郑麦369高产与面粉优质品质的耦合。
【Objective】In order to evaluate the yield and quality of Zhengmai 369 more objectively and accurately,the high-yield and green high-efficiency cultivation of wheat were explored in this paper.【Method】Zhengmai 369 was used as material to study the effects of different winter wheat density,irrigation and fertilization postponement on growth,yield and quality of winter wheat in this paper. Three factors were included:sowing density(D1:270 kg/hm^(2),D2:180 kg/hm^(2)),irrigation time(W1:irrigation at erecting stage,W2:irrigation at shooting stage) and fertilization time(F1:fertilization at erecting stage,F2:fertilization at shooting stage). The principal component analysis and weighted membership function analysis were used to evaluate the effects of different treatments on the yield and quality of Zhengmai369.【Result】The results showed that the number of basic seedling,total stem number,plant height and leaf area index of Zhengmai 369,in vegetative growth stage under high density treatment were,significantly higher than those under low density treatment,while the number of tillering and secondary roots showed the opposite tread. The yield of Zhengmai 369 was significantly higher under irrigation and fertilization treatment at shooting stage than that of other treatments at the same density under both high density and low density. The main reason is that the thousand-grain weight is higher. The six indexes of Zhengmai 369 flour quality under different treatments were comprehensively evaluated by Z-score method. The results showed that irrigation and fertilization postponement was beneficial to improve the flour quality. Principal component analysis and weighted membership function analysis showed that low sowing density,fertilization and irrigation postponement could increase yield,improve the flour quality of Zhengmai 369. 【Conclusion】The results indicated that appropriate management measures can realize the coupling of high yield and high quality of Zhengmai 369.
作者
侯颖
丁锦平
朱新玉
HOU Ying;DING Jinping;ZHU Xinyu(Department of Surveying and Planning,Shangqiu Normal University,Shangqiu 476000,Henan,China)
出处
《四川农业大学学报》
CSCD
北大核心
2022年第3期346-352,共7页
Journal of Sichuan Agricultural University
基金
国家自然科学基金(41501263)
河南省科技攻关项目(182102110075)。
关键词
播种密度
水肥后移
郑麦369
面粉品质
综合分析
sowing density
postponement of irrigation and fertilization time
Zhengmai 369
flour quality
comprehensive analysis
作者简介
责任作者:侯颖,博士,副教授,主要从事植被生理生态研究,E-mail:houying28@126.com。
