000 00313nam a2200109Ia 4500
008 191031s9999 xx 000 0 und d
100 _aShanmugavalli.N
245 0 _aStudies on heterosis and combring ability in cotton
260 _b"Dept. of Agrl.Botany M.Sc(Ag) AC&RI, Madurai"
260 _c1984
942 _cBK
999 _c214676
_d214676