Canonical correlations among characteristics of shoots and roots system in guarana seedlings
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 gro...
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Veröffentlicht in: | Acta amazonica 2012-06, Vol.42 (2), p.241-244 |
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Sprache: | por |
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Zusammenfassung: | 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.Original Abstract: Este trabalho teve como objetivo quantificar o grau de asociacao entre variaveis de parte aerea e de raizes em mudas clonadas de guaranazeiro, utilizando-se correlacoes canonicas, a fim de aperfeicoar o procedimento de selecao de mudas para garantir o aumento da porcentagem de sobrevivencia das mudas apos o plantio. Foram avaliados dois grupos de variaveis em mudas aptas ao plantio definitivo de 36 clones de guaranazeiro. O delineamento usado foi o aleatorizado em blocos com cinco repeticoes e 10 plantas por parcela, sob condicoes de viveiro. Os caracteres avaliados foram submetidos a analise de correlacoes canonicas. Utilizou-se a analise de correlacoes canonicas. O grupo de variaveis da parte aerea nao se mostrou independente do grupo de variaveis do sistema radicular. Atraves de selecao baseada em variaveis da parte aerea pode-se melhorar o sistema radicular, principalmente atraves do maior comprimento do ramo (CRA). A selecao de clones de guarana para maior peso de raiz pode ser efetuada de forma indireta, realizando-se mensuracoes do comprimento dos ramos, o que evita a necessidade de se destruir as mudas. |
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ISSN: | 0044-5967 |