摘要
接种条锈菌7 d以后,对健康小麦和感病小麦最上部展开叶的一些生理指标进行测定,结果发现随着条锈菌侵入程度的不断加深,冬小麦叶片含水量、叶绿素相对含量不断降低,光系统Ⅱ原初光能转换效率及潜在活性受到抑制,同一天中同一时段内叶片净光合速率与发病严重度、蒸腾速率与严重度呈显著负相关。
Several physiological indicatrixes of healthy and diseased last expanding leaves were measured after inoculation a week later. With the farther infecting of stripe rust,water content of leaves,relative content of chlorophyll, the efficiency of primary light energy conversion and the potential activities of photo system Ⅱ decrease . The correlation analysis between net photosynthesis rate and severity showed that there was significantly negative correlation between net photosynthesis rate and severity. What's more,the correlation analysis between transpiration rate and severity showed that there was significantly negative correlation between transpiration rate and severity.
出处
《华北农学报》
CSCD
北大核心
2004年第2期92-94,共3页
Acta Agriculturae Boreali-Sinica
基金
国家863计划课题(2002AA243011)资助
