Under the selection pressure of crude toxin filtration, three kinds of treatment methods and four kinds of phytotoxin concentrations were used to screen the blast-resistant callus phenylalanine.
摘要以稻瘟
原菌粗毒素提取液为选择压,对水稻进

性筛选,结果表明:粗毒素提取液对水稻愈伤
织诱导、继代及分化有明显的抑制作用,抑制

毒素浓
提高而增强,且品种间差异显著。

周末都在清扫落叶,然后手上长出了
叫欧维
男人决定去死


很少,随着时间
级英语短文


