Wijesuriya, W.Thattil, R.O.Samitha, S.2010-07-062010-07-062007-6Journal of the National Science Foundation of Sri Lanka, 35(2):p.71-79https://dl.nsf.gov.lk/handle/1/6139RubberPerformance indexesFiled assessment scoreGrowth performance indexPlant growthYieldStatisticsYield performance indexAgricultureIndices for measuring performance of smallholder rubber unitsArticle