摘要
对冬小麦受淹后的生长发育及其生理影响进行了研究,结果表明:湿害在小麦苗期对株高、分蘖数、穗数稍有影响;在拔节期对株高、次生根、单株干重影响较大,使成穗数减少;在抽穗后有效穗死亡较多,穗粒数和粒重减少;在灌浆期引起粒重下降。淹水后小麦的生理反应是,根呼吸强度、根系伤流量、根系活跃吸收面积、蒸腾强度都相应的下降。
Due to the wet injury,the strength of wheat transpiration and
respiration weakens simultaneously in varied growth period.In seedling
stage,wet injury has slight influence to plant height,tiller and ear numbers
of winter wheat.In jointing stage,plant height,secondary root and the
dry weight per plant reduce distinctly.In earing stage,the effective spikes
die off considerably.In mature period,the spikes per mu,grains per spike
and weight per 1000 grain show an evident reduction.
出处
《河南农业大学学报》
CAS
CSCD
1992年第1期31-37,共7页
Journal of Henan Agricultural University
基金
河南省科委七五期间下达的小麦应变栽培技术研究课题
关键词
小麦
湿害
生长
发育
生理
winter wheat
wet injury
growth
development
physiology
