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研究结果表明 ,棉株感染黄萎病后伤流量降低 ,伤流中无机离子的运输量减少。伤流中 P、Ca、Mg、B、Mn、Fe、Al、Ba、Cr、Cu、Mo、Ni的浓度降低 ,K、Na离子浓度上升。缩节安处理增加了感病棉株的伤流量和伤流中各无机离子的运输量 ;提高了 P、Ca、Mg、B、Mn、Fe、Al、Ba、Cr、Cu、Mo、Ni的浓度 ,降低了 K、Na、B的浓度。缩节安处理增强了棉株抵抗黄萎病菌侵染的能力 ,两年试验结果表明 ,缩节安系统化控区感病株率分别比对照下降了 76.2 1 %和 52 .87% ,显著降低了棉株的感病株率
The results showed that the wound volume of cotton plants decreased after Verticillium wilt infection, and the transport of inorganic ions in the wounds decreased. The concentrations of P, Ca, Mg, B, Mn, Fe, Al, Ba, Cr, Cu, Mo and Ni in wounds decreased while the concentrations of K and Na increased. Shrinkage treatment increased the wound flow rate and the amount of transport of inorganic ions in wounds, increased the contents of P, Ca, Mg, B, Mn, Fe, Al, Ba, Cr, Cu, Mo and Ni Concentration, reducing the concentration of K, Na, B. The shrinkage-reducing treatment enhanced the ability of cotton plants to resist Verticillium dahliae infection. The results of two years showed that the susceptible strain rates of systemically controlled arthrosis decreased 76.2% and 52.87% respectively compared with the control, which was significantly lower The susceptible strain of cotton plants