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生长势。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≥0℃积温、光照时数呈明显负相关,而乳熟期生长势和拔节期～乳熟期光照时数相关性达到极显著程度。
This article study object is fall wheat growth in strong and pervasive flagrance of XIFENG that could delegate the loess plateau of LONG DONG ,use product of leaf area and high of plant to figure growth impetus of several key growth date that is the date of stop growth,drawing-knar and milk-ripe.Pass analysis and find,the growth impetus of date of stop- growth is not prominence correlation with factor of weather,the growth impetus of date of drawing-knar is prominence correlation with precipitation period the date of return cyan to drawing-knar,and patency minus correlation with 〉 0℃ cumulated temperature and sunlight hours,but the growth impetus of date of milk-ripe is best prominence correlation with sunlight hours ofdrawing-knar to milk-ripe.
出处
《甘肃高师学报》
2007年第2期123-126,共4页
Journal of Gansu Normal Colleges
关键词
气候资源
冬小麦
生长势
影响
climate resoure
fall wheat
growth impetus
influence
