Relationship between ortets-ramets and its efficiency in microtest tapping for early rubber plant selection

Abstract

The relationship of the microtest tapping between ortets and its respective ramets was studied, aiming to evaluate the magnitude of the correlations that exist among them in the early high yielding ortet selection. Three rounds microtest tappings were used on each one-year old ortet and its respective ramets. The results achieved showed low relationship for the first and second rounds ortet microtest tappings when correlated with the three round microtest tappings. However, the third round of the ortet microtest correlated with the three rounds of ramets microtest tapping individually showed high and significant simple correlation, which indicates high value for the third ortet microtest tapping in the selection of superior ortets.