A study of raw rubber properties of clones of RRIC series [Sri Lanka]

asia asie caoutchouc caucho chemicophysical properties classification crops cultivos dicotiledoneas dicotyledons economic plants euphorbiaceae geraniales hevea hevea brasiliensis industrial crops latex methode methods plantas plantas industriales plante plante de culture plante industrielle plants productos productos de origen vegetal products produit rubber rubber crops sri lanka vegetable products