摘要
为了进一步掌握兴安盟半干旱地区谷子生长发育性状,找出适合兴安盟半干旱地区谷子的适宜播种区和播种期,指导科学育种与生产工作。本研究以兴安盟半干旱地区谷子主栽的’大金苗’品种为试验材料,在兴安盟中部、南部、东部地区3个地块进行10个分期播种试验。结果表明:随着播种期的延后,生育天数缩短,突泉县生育期缩短了56天;根据大金苗品种生理特性突泉县更适合种植。随播种期的延迟,各生育阶段的天数不同。播种期主要影响三叶-拔节阶段与抽穗-乳熟2个阶段,此阶段为兴安盟谷子生长发育的关键期。6月5日前后播种充分利用了生育期的热量,符合当地科学种植谷子需求。播种期对谷子平均单株鲜重、平均单株干重、平均单株穗长、理论产量的影响均有所不同。5月29日与6月5日播种产量较高,播种提前或者延后产量均有所降低。
To further master the growth and development characteristics of millet in the semi-arid region of Hinggan League, and find out suitable sowing areas and sowing period to guide scientific breeding and production, In this study, millet variety’Dajinmiao’mainly planted in the semi-arid areas of Hinggan League was used as the experimental material, and 10 stage sowing experiments were carried out in three plots,respectively in the central, southern and eastern Hinggan League. The results showed that the fertility days were shortened along with the extension of the sowing period, and the fertility period in Tuquan County was shortened by 56 days. According to the physiological characteristics of’dajinmiao’, Tuquan County was more suitable for planting. The number of growth days varied with the delay of sowing time. The sowing period mainly affected the three leaves-jointing stage and the heading-milk ripening stage, which were the key periods for the growth and development of millet in Hinggan League. The planting period before and after June5 could make full use of the heat during the growth period and meet the needs of scientifically planting millet.The sowing periods had different effects on the average fresh weight per plant, average dry weight per plant,average panicle length per plant and theoretical yield of millet. Sowing on May 29 and June 5 could achieve relatively high yield, and earlier or late sowing could reduce the yield.
作者
高春香
杨玉辉
Gao Chunxiang;Yang Yuhui(Inner Mongolia Climate Center,Hohhot 010051;Meteorological Bureau of Jalaid Banner,Hinggan League,Jalaid Banner Inner Mongolia 137600)
出处
《中国农学通报》
2020年第21期19-24,共6页
Chinese Agricultural Science Bulletin
基金
内蒙古自治区气象局科研项目“兴安盟突泉县谷子、气候品质认证研究”(nmqx2019)
关键词
半干旱地区
谷子
不同播种期
生长性状
分析
semi-arid area
millet
different sowing periods
growth characters
analysis
