00283nam a2200109Ia 450000500170000000800410001708200160005810000150007424500330008926000430012230000080016520260224040859.0260224s9999||||xx |||||||||||||| ||und||  a631.522 SIN  aSingh, P.  0aEssentials of plant breeding  aLudhiana : Kalyani Publications c2003  a414