摘要
采用激光粒度分析仪测定了阳光10号(Y10)、鲁原502(L502)、烟农999(Y999)、山农28(S28)4个强筋小麦品种,在10月10日(常规播期)、10月17日(适期晚播)、10月24日(晚播期)3个播期下的淀粉粒径分布,探究了在气候变暖背景下播期对强筋小麦籽粒淀粉粒度的影响。结果表明:强筋小麦Y10、L502、Y999、S28的淀粉粒径主要分布在0.7~3.0μm之间,其淀粉粒的数目百分比呈单峰分布,而表面积分布、体积分布百分比均呈现双峰分布;适期晚播使得强筋小麦B型淀粉粒占比显著提高,强筋小麦Y10、L502、Y999、S28的B型淀粉粒与面团流变学品质呈显著正相关。因此,有望通过适期晚播来提高强筋小麦籽粒的品质,以应对全球气候变暖带来的高温胁迫影响。
In order to study the effect of sowing date on starch granule size distribution of strong gluten wheat under the background of climate warming,the grain size distribution of four strong gluten wheat varieties,such as Yangguang 10(Y10),Luyuan 502(L502),Yannong 999(Y999)and Shannong 28(S28),were determined by laser grain size analyzer under three sowing periods of October 10(conventional sowing date),October 17(suitable late sowing date)and October 24(late sowing date).The results showed that the starch grains of Y10,L502,Y999 and S28 were mainly distributed in the range of 0.7~3.0μm,and the percentage of starch grains of Y10,L502,Y999 and S28 showed unimodal distribution,while the percentage of surface area and volume distribution showed bimodal distribution.The proportion of B-type starch granules in strong gluten wheat was significantly increased by suitable late sowing,and the B-type starch granules of strong gluten wheat Y10,L502,Y999 and S28 were significantly positively correlated with the dough rheological quality.Therefore,in order to cope with the impact of high temperature stress brought by global warming,we are expected to improve the grain quality of strong gluten wheat by suitable late sowing.
作者
胡涛
郭兆昊
丁兴民
郭仁坤
戚瀚月
张建达
周晓燕
冯尚宗
张华
HU Tao;GUO Zhao-hao;DING Xing-min;GUO Ren-kun;QI Han-yue;ZHANG Jian-da;ZHOU Xiao-yan;FENG Shang-zong;ZHANG Hua(Linyi Agricultural Technology Extension Center,Linyi 276001,China;College of Life Sciences,Linyi University,Linyi 276005,China;Qingdao Agricultural Technology Extension Center,Qingdao 266071,China;Tancheng Jinghua Seed Industry Co.,Ltd.,Tancheng 276100,China)
出处
《江西农业学报》
2025年第6期12-16,共5页
Acta Agriculturae Jiangxi
基金
国家农业重大科技项目(NK20220607)
临沂大学校级重点大学生创新训练项目(X202210452479、X202410452435)
临沂大学科技项目(LYDX2016BS0076)。
关键词
强筋小麦
播期
适期晚播
粒度分布
B型淀粉粒
Strong gluten wheat
Sowing date
Suitable late sowing
Granule size distribution
B-type starch granules
