TY - BOOK AU - P G RAJENDRAN AU - K M N NAMBOODIRI TI - STUDIES ON INTER - RACIAL AND INTRA - RACIAL F2 HYBRIDS OF Oryza sativa Linn U1 - I N68 RA 43 PY - 1969/// CY - AGRICULTURAL COLLEGE AND RESEARCH INSTITUTE VELLAYANI PB - DIVISION OF AGRICULTURAL BOTANY ER -