Studies on the Effect of phlb Gene on the F1,BC1,BC2,BC3 of Crosses between Bread Wheat and Ae.variabilis and the Transfer of Cereal Root knot Nematode(M.naasi) Resistance

phlb 基因对普通小麦×易变山羊草Ae.variabilis杂种F1、BC1、BC2、BC3及转移抗禾谷类根结线虫 M.naasi基因