000 00451nam a2200145Ia 4500
008 220216s9999 xx 000 0 und d
100 _aJayasekera N E M
245 0 _aRole of quantitative genetics in the improvement of crop yields by controlled breeding
260 _bRubber Research Institute of Sri Lanka Bulletin
_c1985
300 _a39-42
650 _aControlled breeding
650 _aQuantitative genetics
650 _aYield
942 _cJS
999 _c67204
_d67204