1Cytogenetics Laboratory, Department of Botany, Osmania University, Hyderabad, 500007
A male sterile mutant was isolated from the pigeonpea line 1CP 7295 in the M2 generation after treatment with 0.2% ethyl methanesulphonate (EMS). The leaves of the mutant were long and narrow and the stem was slender as compared to the normal plants. The pollen grains of the male sterile mutant were shrunken and with no distinct colpae, whereas the normal pollen grains were distinctly tricolpate. The inheritance studies indicated that sterility is governed bv a single recessive allele.
Male sterility, ethyl methanesulphonate, pigeonpea
