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利用通用旋转组合设计，讨论了不同接虫期和接虫量下，水稻潜根线虫侵染后，寄主水稻在３个生育期（分蘖期、拔节期、乳熟期）细胞膜丙二醛含量和外渗电导率的变化。病株丙二醛含量在３个生育期依次高出健株１９．６％、９．１％和６．７％；分蘖期病株外渗电导率平均高出健株１９．３％。同时，这两项指标在水稻３个生育期中的测定值受接虫期、接虫量的影响
By using the universal rotation combination design, the content of malondialdehyde (MDA) in the plasma membrane of host rice at three growth stages (tillering stage, jointing stage and milky stage) Extravasation conductivity changes. The malondialdehyde content of diseased plants was 19.6%, 9.1% and 6.7% higher than that of healthy plants in three growth stages, respectively. The external conductivity of diseased plants was 19.3% higher than that of healthy plants at the tillering stage. At the same time, the measured values of these two indexes in the three growth stages of rice are affected by the pick-up period and the pick-up amount