摘要
在杭州春夏播条件下,冬春性不同的大麦品种间生长发育差异明显。春化处理效应因品种和播期而异。未抽穗植株幼穗发育的停滞时期有随播期推迟,品种冬性增强而提前的趋势,作者认为生长锥伸长是春化阶段结束的标志的传统说法不够确切。明确了根据分期春播各品种抽穗性的差异,是鉴定大麦品种春、冬性强弱的简单可靠的好方法。本文还讨论了春化处理效应因播期而异的原因,并提出了大麦春化阶段对温度要求的新看法。
Under the condition of spring-sowing and summer-sowing in Huangzhou,obvious dif-ferences between barley cultivars of different growth habit was found.The effects ofvernalization differ with the cultivars and sowing dates.Stopping stages of ear develop-ment for unheading plants appear to be earlier with postponing of sowing dates orcultivars'winter-growth habit getting stronger.It is seemed not to be correct enough thatthe elongation of apical cone is a sign of having passed the vernalization stage for barleyplants.The experiment showed that growth-habit of different barley genotypes could be de-termined by the differences of their heading dates under spring-sowing conditions.In thispaper,the reason why the effects of vernalization differ with sowing date was discussed,and the new viewpoint on response of vernalization stage to temperature was proposed.
出处
《作物学报》
CAS
CSCD
北大核心
1989年第4期319-327,共9页
Acta Agronomica Sinica
关键词
大麦
春化作用
播种期
发育期
Barley(Hordeum vulgare L.)
Vernalization
Sowing date
Ear development
Leaf age
