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Position: Home > Articles > Assessment System of Crop Condition and Growth Status of Winter Wheat in Eastern Gansu Chinese Journal of Agrometeorology 2005,26 (2) 81-84

陇东黄土高原冬小麦生长势及生长状况评定体系的建立

作  者:
郭海英;杨兴国;马鹏里
单  位:
中国气象局兰州干旱气象研究所
关键词:
冬小麦;生长势;评定体系;陇东黄土高原
摘  要:
以陇东黄土高原有代表性的董志塬上的冬小麦为研究对象,以叶面积与植株高度之积表示停止生长期、拔节期、乳熟期等几个关键发育期的生长势。以生长势为量化指标,建立了冬小麦生长状况评定体系,并通过分析发现,停止生长期生长势和气象要素相关不显著;拔节期生长势和返青期-拔节期降水量相关显著,并和该时段≥0℃积温、光照时数呈显著负相关;而乳熟期生长势则和拔节期-乳熟期光照时数相关性达到极显著程度。
译  名:
Assessment System of Crop Condition and Growth Status of Winter Wheat in Eastern Gansu
作  者:
GUO Hai-ying~(1,2),YANG Xing-guo~(1),MA Peng-li~(1) (1.Institute of Arid-meteorology, CMA, Lanzhou 730020, China;2.XiFeng Top-ranking Experimentation Station of Agricultural Meteorology)
关键词:
Winter wheat; Growth condition; Assessment; system; Eestern Gansu
摘  要:
Based on the defintion of growth condition by the multiply of leaf area and the plant height, regarded Dongzhiyuan of loess plateau of Eastern Gansu as a representative,the crop condition and growth status of winter wheat was calculated in different key growth phases such as stop-growth, drawing-knar and milk-ripe. The relationship between the crop condition and meteorological factors were analyzed in every phase. The results showed that there were no significant correlation between them in stop-growth, and that the growth condition in drawing-knar had a positive correlation with precipitation and a negative correlation with ≥ 0℃accumulated temperature and sunlight hours turn-green to drawing-knar, and that the growth condition had a positive correlation with sunlight hours during phase from milk-ripe to drawing-knar.

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