茄病镰刀菌毒素的研究Ⅱ．毒素与豌豆品种抗病性的关系

茄病镰刀菌（Ｆｕｓａｒｕａｎｓｏｌａｎｉｆ．ｓｐ．ｐｉｓｉ）是甘肃中部干旱山区豌豆根腐病的主要病原菌。在研究了该菌毒素的分离、鉴定及生物测定的基础上，为探索利用毒素间接测定品种的抗性，进一步研究了毒素与病程的关系，测定了１７个豌豆品种对该菌的抗性及对其毒素的耐性之间的相关性。结果表明：毒素与该病病程密切相关；豌豆品种对茄病镰刀菌的抗性与其对１０％产毒培养滤液的耐性之间呈显著的正相关，并且有直线回归关系。因而认为，用测定该毒素对豌豆胚根生长抑制率的方法来代替活菌间接测定品种的抗性是可行的。

Studies on the Toxins of Fusarum solani Ⅱ.Correlation Between Toxin and Disease Resistance of Pea Cultivars

Fusariun solani f.sp.pisi is a main pathogen of root-rot disease in pea (Pisum satiwumL.)in the central region of Gansu province.on the basis of my previous studies on the isolation, as-say and bioassay of the toxins from this fungus,the relation between the toxins and pathogenesis,and the correlation between the resistance of 17 pea cultivars to this fungus and their tolerance to thetoxins were further studied to search for the possibility of using the toxins in the indirect detection ofthe disease resistance in pea. The results showed that there were a close relation between the toxinsand pathogenesis in pea,and a significant correlation and linear regression between the disease resis-tance of pea cultivars to this fungus and their tolerance to the 10% toxic culture filtrate of this fun-gus.It is suggested that it has a possibility for using the method of testing the inhibition rate of peaembryonic root growth by toxins to indirectly detect the disease resistance of pea cultivars to this fun-gus instead of using the method with alive pathogen infection.