Position: Home > Articles > The Feature and Variation for the Three Phases of Growth and Development in the Maize on Cold Dry-land of Altitude at North of China
Chinese Journal of Agrometeorology
1995,16
(4)
我国北方高寒旱地玉米的三段生长特征及其变化
作 者：
吴东兵;曹广才
单 位：
中国农业科学院作物育种栽培研究所
关键词：
玉米，高寒旱地，生育阶段
摘 要：
１９９２和１９９３年，在山西省寿阳县的高寒旱地进行了玉米的多品种试验、多因子试验和垂直生态试验。早熟和中早熟玉米品种能够完成生活周期，但生育时期较迟，全生育过程较长。播种一拔节、拔节一抽雄、抽雄－成熟是玉米的３个生育阶段。在高寒旱地，玉米的三段生长表现“长──短──长”的“两长—短”特征。随着播期的推迟，第１生育阶段逐渐缩短。随着海拔的升高，第１和第３阶段逐渐延长。播种一成熟无数和播种—拔节天数之间呈极显著正相关。玉米的整个生育过程体现了温度效应。
译 名：
The Feature and Variation for the Three Phases of Growth and Development in the Maize on Cold Dry-land of Altitude at North of China
作 者：
Wu Dongbing;Cao Guangcai（Institute of Crop Breeding and Cultivation,Chinese Academy of Agricultural Sciences,Beijing 100081）
关键词：
： Maize Cold dry-land of altitude Phase of growth and development
摘 要：
The experiments of polyvarie ties and pelyfactors in maize were carried out in 1992 and 1993 in Shouyang County of Shanxi Province at cold dry-lind of altitude. Vertical ecological experiments inmaize were carried out too， Results indicated that the early and medium- early maturing varieties couldcomplete their growing cycle，but each state uf growth period were slower，all process uf growth anddevelopment were longer．The growing cycle could divide three phases of growth and development，i.e. sowing to elongation，elongation to heading and heading to maturation， The three growth phaseswas characterized by‘long－short－long’，i．e，‘two long and one short’．First growth phase were short-ened gradually with the letening of sowing times，First and third growth phases were prulonged gradu-ally with the increasing of elevation， There was a very significant positive correlation between the daysfrom sowing to maturity and from sowing to elongation. All process of growth and development in themaize were embcabodied temperature effect.
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