00289nam a2200097Ia 4500008004100000082001800041100004000059245004200099260004000141300001000181140113s9999    xx            000 0 und d  a635.1 / .9 P6  a" Rai,  Nagendra and  Rai, Mathura"  aHeterosis breeding in vegetable crops  b"New India publishing agency, 2006"  a531p.