Associação entre características da parte aérea e do sistema radicular em mudas de guaranazeiro por correlações canônicas

Abstract

This study aimed to quantify the degree of association between variables of shoots and roots system of seedlings cloned from guarana, using canonical correlations, in order to improve the procedure of selection of seedlings to ensure increased survival percentage of seedlings after planting. Two groups of variables suitable for final planting seedlings in 36 guarana clones. The experimental design was a randomized complete block with five replications and 10 plants per plot, under nursery conditions. We used the canonical correlation analysis. The group of variables of shoot is not independent of variable group of root system. Through selection based on variables from the air, you can improve the root system, mainly through the greater length of the branch (CRA). Can practice the selection of clones of guarana for increased root weight without the need to destroy the seedlings carrying only measurements of the length of the branches.