?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=P&rft.au=Syamala%2C+P&rft.aulast=Syamala&rft.inst=Sri+Venkateswara+Agricultural+College%2CTirupati%2C+Acharya+N.G.Ranga+Agricultural+University%2C+Guntur%2C+Andhra+Pradesh&rft.date=2017&rft.title=Combining+ability+and+heterosis+studies+in+CGMS+based+hybrids+of+Pigeonpea+(Cajanus+cajan+(L.)+Millsp&rft.tpages=159&rft.degree=Masters