00382nam a2200133Ia 4500008004100000100001400041245005600055260005200111300001000163650001400173650002300187700001500210700002300225220216s9999 xx 000 0 und d aMydin K K 0aHeterosis for juvenile vigour in Hevea brasiliensis bIndian Journal of Natural Rubber Researchc1990 a69-72 aHeterosis aHevea brasiliensis aNazeer M A aSaraswathyamma C K