Then a pod experiment is conducted with two K levels to evaluate the difference of the main morphological and physiological indexes of each typical variety selected from those four types.

再从上述四种类型中分别选取各类型代表品种（系）进行盆栽试验，对植株的主要形态指标以及生理生化指标进行测定，分析不同耐性品种（系）在形态、生理生化方面的差异。

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