003310000a22001330004500060000800000082001500008100001900023245004400042250000600086260005100092260000900143300000800152650003700160  a100  a631.53 CHA  aChaudhari, H R  aElementary principles of plant breeding  a2  aNewdelhi, Oxford & IBH publishing co. pvt. ltd  c1971  a319  aPlant breeding/heterosis/cloning