文献类型：期刊文献

中文题名：乌兰布和沙漠绿洲两种农作物叶片性状特征研究

英文题名：Studies on Leaf Traits of Two Kinds of Crops in Ulan Buh Desert Oasis

作者：高君亮[1,2,3] 罗凤敏[1,3] 赵英铭[1,2,3] 张景波[1,2,3] 原伟杰[4] 郝玉光[1,3]

第一作者：高君亮

机构：[1]中国林业科学研究院沙漠林业实验中心;[2]中国林业科学研究院荒漠化研究所;[3]国家林业局内蒙古磴口荒漠生态系统定位观测研究站;[4]中国林业科学研究院华北林业实验中心

年份：2016

卷号：41

期号：1

起止页码：38-42

中文期刊名：东北农业科学

外文期刊名：Journal of Northeast Agricultural Sciences

收录：CSTPCD;;国家哲学社会科学学术期刊数据库

基金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2014MA016;CAFYBB2012003);"十二五"科技支撑课题(2012BAD16B0103)

语种：中文

中文关键词：比叶面积;叶干物质含量;向日葵;玉米;乌兰布和沙漠绿洲

外文关键词：Specific leaf area; Leaf dry matter content; Helianthus annus; Zea mays; Ulan Buh desert oasis

分类号：S181

摘要：农作物叶片性状特征反映了其利用自然资源的能力。以乌兰布和沙漠绿洲最主要的两种农作物(向日葵和玉米)为研究对象,通过测定叶面积、叶饱和鲜重及干重,计算了比叶面积(SLA)和叶干物质含量(LDMC)。结果表明:两种农作物叶面积和叶重的关系均为极显著线性相关关系(P<0.0001),因此用叶重推算叶面积是可行的。其中,通过叶饱和鲜重推算的叶面积值准确度更高、误差更小。两种农作物的SLA、LDMC均存在极显著差异(P<0.0001),向日葵和玉米的SLA分别为(17.77±5.41)m2/kg、(11.29±2.22)m2/kg,LDMC分别为(170.93±31.15)mg/g、(266.85±43.91)mg/g。SLA和LDMC之间呈极显著负相关关系(r=-0.9005,P<0.0001),可用幂函数y=ax-b来表述。SLA和LDMC较好地反映了农作物利用资源的能力。
The leaf characteristics of crops reflect their capability of resources utilization. Two crops （Helianthus annuus and Zea mays） in the Ulan Buh Desert oasis were selected as the research objects. The specific leaf area （S/A） and leaf dry matter content （LDMC） were calculated through the measurement of leaf area （LA）, saturated wet leaf weight and dry leaf weight. The results showed that the leaf areas of the two crops were both significantly linear related to their leaf weight, so it was feasible to calculate the leaf area through leaf weight. The calculation of leaf area through wet leaf weight showed greater accuracy and less error. The S/A, LDMC of the two crops were all in very significant difference （P〈0.0001）, the SLA of Helianthus annuus and Zea mays were （17.77±5.41）m2/kg, （11.29±2.22） m2/kg, respectively, and the LDMC were （170.93±31.15）mg/g, （266.85±43.91）mg/g, respectively. The SLA was signif- icantly negative related to the LDMC （r=-0.9005, P〈0.0001）, which could be expressed by the form of power function y=ax-b. The SLA and LDMC well reflected the capability of resources utilization of crops.