Jayasekera, N.E.M.2014-07-102014-07-101985Bulletin of the Rubber Research Institute of Sri Lanka, 20:p.39-42https://dl-rri.nsf.gov.lk//handle/1/2548AgriculturePlant breedingCrop yieldGenetic improvementHeterosisRole of quantitative genetics in the improvement of crop yields by controlled breedingArticle