Inheritance of resistance to fusarium wilt in pigeonpea (Cajanus cajan (L.) Millsp.)

The inheritance of resistance in pigeonpea (Cajanus cajan (L.) Millsp.) to fusarium wilt (Fusarium udum Butler) was studied in crosses between a resistant line ICP 8863 and two susceptible (ICP 2376 and LRG 30) pigeonpea lines. The parents, F1, F2 and backcross populations were screened for resistance to F. udum in a wilt-sick nursery at the ICRISAT Center. Resistance to fusarium wilt is controlled by a single recessive gene, which has been designated as pwr1.