水杨酸对大花三色堇幼苗耐热性的影响

杜晓华, 刘会超, 崔向南, 李美灵

( 河南科技学院 园艺园林学院， 河南 新乡 453003 )

图 1　高温胁迫对大花三色堇幼苗叶片电解质外渗Fig. 1　Effects of heat stress on electrolyte leakage of leaves in Viola × writtrockiana seedlings

图 2　喷施SA对大花三色堇热胁迫下电解质外渗率的影响Fig. 2　Effects of spraying SA solution on electrolyte leakage of Viola × writtrockiana under heat stress

表 1　高温胁迫不同时间大花三色堇生理指标的比较

图 3　高温胁迫对大花三色堇幼苗可溶性糖含量的影响Fig. 3　Effects of heat stress on soluble sugar content of Viola × writtrockiana seedling leaves

图 4　喷施SA对热胁迫下大花三色堇可溶性糖含量的影响Fig. 4　Effects of spraying SA solution on soluble sugar content of Viola × writtrockiana under heat stress

表 2　SA预处理对热胁迫下大花三色堇生理指标的影响

图 5　高温胁迫对大花三色堇幼苗脯氨酸含量的影响Fig. 5　Effects of heat stress on proline content of Viola × writtrockiana seedling leaves

图 6　喷施SA对热胁迫下大花三色堇脯氨酸含量的影响Fig. 6　Effects of spraying SA solution on proline content of Viola × writtrockiana under heat stress

图 7　高温胁迫对大花三色堇幼苗POD活性的影响Fig. 7　Effects of heat stress on POD of Viola × writtrockiana seedling leaves

图 8　喷施SA对热胁迫下大花三色堇POD含量的影响Fig. 8　Effects of spraying SA solution on POD of Viola × writtrockiana under heat stress