摘要
为探究不同水磷运筹对冬小麦农艺性状和品质性状的影响,以冬小麦品种新冬20号和新冬23号为材料,研究了不同水分和施磷时期处理对冬小麦农艺性状、籽粒蛋白和淀粉含量、淀粉特性、植株和籽粒全磷含量的影响.结果表明:(1)品种、水分、施磷时期及其互作效应对小麦株高和千粒重均有显著影响;(2)品种、水分及三个试验因素的互作效应对籽粒淀粉和蛋白含量均有显著影响;籽粒淀粉含量以新冬20号干旱胁迫下一次施磷(DT+P1)处理的最高,新冬23号以干旱胁迫下三次施磷(DT+P3)处理最高;两个品种均以适水对照下三次施磷(WT+P3)处理的籽粒蛋白含量最高;(3)不同磷素运筹和干旱胁迫条件下,小麦淀粉粒的微观结构发生了变化,进而影响了淀粉粒的水解效率;(4)两个小麦品种的籽粒硬度均以DT+P3处理最低;(5)水分和施磷处理的互作效应对植株和籽粒磷含量有显著影响.
In order to study the effects of water and phosphorus application on the agronomic and quality traits,two winter wheat cultivars Xindong 20 and Xindong 23 were used as materials.By designing the three-factor experiment,the plant agronomic traits and grain quality traits of winter wheat were investigated.The results showed that:Variety,water,phosphorus application period and their interaction have significant effects on wheat plant height and 1 000-grain weight.Variety,water,and the interaction of three experimental factors have a significant effect on starch and protein content.Xindong 20 and Xindong 23 have the highest starch content in grain under DT+P 1 and DT+P 3 treatments,respectively.The two varieties achieve the highest protein content under WT+P 3 treatment.Under different treatments,the micro-structure of starch granules are changed,which further have an effect on the hydrolysis efficiency of starch.Under DT+P 3 treatment,the grain hardness is lowest both in two varieties.The interaction between water and phosphorus application period has a significant effect on the total phosphorus content in plants and grains.
作者
李诚
王晓丽
陈和平
张润琪
鲍艺丹
朱长安
李春艳
LI Cheng;WANG Xiaoli;CHEN Heping;ZHANG Runqi;BAO Yidan;ZHU Chang’an;LI Chunyan(College of Agriculture,Shihezi University/The Key Laboratory of Oasis Eco-Agriculture,Xinjiang Production and Construction Group,Shihezi,Xinjiang 832000,China;Shengyuan Seeds Industry Co. Ltd,Wujiaqu,Xinjiang 831300,China)
出处
《麦类作物学报》
CAS
CSCD
北大核心
2019年第7期826-834,共9页
Journal of Triticeae Crops
基金
国家自然科学基金项目(31360334,31560389,31860337)
小麦新品种选育与种质资源创新(2016AC027)
石河子大学青年创新人才培育计划(CXRC201703)
石河子大学新品种培育专项(YZZX201702)
关键词
小麦
磷素
干旱胁迫
农艺性状
淀粉品质
Wheat
Phosphorus
Drought stress
Agronomic traits
Starch quality
