00335nam a2200145Ia 4500008004100000082000800041082000800049100000600057100001300063245004600076260002300122260002300145260000900168650001200177240117s9999||||xx |||||||||||||| ||und||  aK/P  b631  ak  arajappan 0aprinciples and methods of plant breedings  athiruvananthapuram  bprathibha printers  c1978  abiology