Kumara Pillai, PNarayanan Unnithan, KKAU2021-03-022021-03-021967TH-105https://krishikosh.egranth.ac.in/handle/1/5810161826MScEnglishStudies on inter-varietal hybrids of rice (Oryza sative Linn.) with special reference to hybrid sterility and heterosisThesis