激素、钙、水杨酸和铵诱导马尾松、黑松抗松材线虫病的研究

Studies on the effects of Pinus massoniana and Pinus thunbergii resistance to pine wood nematode(PWN) induced by hormon,calcium,salicylic acid and ammonium

诱抗试验结果表明：（１）ＩＢＡ、乙烯、ＩＢＡ＋乙烯对马尾松的诱抗效果达６０％，而ＩＢＡ＋乙烯对黑松苗的诱抗效果为１２５％。（２）Ｃａ２＋＋ＩＢＡ对黑松苗的诱抗效果为３６６７％。（３）除Ｓａ＋ＩＢＡ对黑松苗的诱抗效果为１６７％外，其余Ｓａ的各处理效果均不明显。（４）铵的单用、混用或与Ｃａ２＋混用对马尾松诱抗效果均可达６６８％～１００％。

The test results showed that 60% of induced resistant effect of the masson pine seedling to PWN( Bursaphelenchus xylophilus) were induced by IBA,Ethylene(ET),IBA+ET.And 12 5% of it of black pine seedling to PWN were induced by IBA+ET.Ca 2+ +IBA got 36 67% of induced resistant effect to black pine seedling cacused by PWN.Except for Sa+IBA to black pine seedling got 16 7% of the induced resistant effect,the rest of Sa treatment hadn’t effect.NH + 4 and NH + 4+Ca 2+ to masson pine trees could get 66 8%～100% of the induced resistant effect.