2017
DOI: 10.1590/0103-8478cr20160808
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Correlations and track analysis for morphoagronomic descriptors in pedigree and parental lines of castor bean

Abstract: As castor bean (Ricinus communis L.) reveals immense adaptability to various ecological conditions and due to its socioeconomic significance, new studies have emerged primarily to develop more productive cultivars to suit different regions in Brazil. This study aimed to confirmthe correlations and direct and indirect effects of the morphoagronomic descriptors on castor bean productivity, employing correlation studies and track analysis. Between 2014 and 2015, experiments utilizing the randomized block design w… Show more

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Cited by 5 publications
(9 citation statements)
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References 14 publications
(12 reference statements)
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“…Studying the correlations between production and the main morphoproductive characters, as well as between characters, reveals that the most relevant (positive and very significant) are: between yield and weight seeds per primary raceme (r=0,992 *** ), weight and number of seeds per primary raceme (r=0,832 *** ), weight capsules and number of seeds per primary raceme (r=0,736 *** ), (Table 4). Similar values of the correlation coefficients were found by [1], [7], [10], [13], and [14] The results state the fact that these characters are main elements of the castor bean productivity, and the relationship between them may be considered as criteria of selection for raising the productivity in the improvement program for this variety.…”
Section: Findings and Discussionsupporting
confidence: 83%
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“…Studying the correlations between production and the main morphoproductive characters, as well as between characters, reveals that the most relevant (positive and very significant) are: between yield and weight seeds per primary raceme (r=0,992 *** ), weight and number of seeds per primary raceme (r=0,832 *** ), weight capsules and number of seeds per primary raceme (r=0,736 *** ), (Table 4). Similar values of the correlation coefficients were found by [1], [7], [10], [13], and [14] The results state the fact that these characters are main elements of the castor bean productivity, and the relationship between them may be considered as criteria of selection for raising the productivity in the improvement program for this variety.…”
Section: Findings and Discussionsupporting
confidence: 83%
“…Also, there are significant positive correlations between height plant and height insertion of the primary raceme (r=0,625 ** ) and the primary raceme length (r=0,625 ** ), stated by [9] and [10], too.…”
Section: Findings and Discussionmentioning
confidence: 98%
“…Respostas significativas em análises de correlação de Pearson para características agronômicas em plantas de mamona foram constatadas para produtividade de grãos x número efetivos de racemos, produtividade de grãos x peso de 100 sementes (TEWARI; MISHRA, 2013), altura de inserção do racemo primário x produtividade de grãos (FURTADO et al, 2014), produtividade de grãos por planta x número de racemos por planta (VIJAY et al, 2015), altura de planta x teor de óleo, altura de planta x massa de frutos (TORRES et al, 2015), comprimento de racemo x produtividade, comprimento de racemo x número frutos por racemo e comprimento de racemo x altura de planta (SILVA et al, 2017). Na tabela 2, constata-se, que mesmo ocorrendo uma correlação positiva entre produtividade de racemos e produtividade de grãos da mamoneira, o efeito direto da primeira variável em relação à segunda foi negativo.…”
Section: Correlation and Path Analysis In Castor Bean And Sunflowerunclassified
“…Tal resposta aconteceu supostamente em consequência da partição de carbono para composição da produtividade grãos e produtividade de racemos, incrementar em termos relativos numa proporção maior para a segunda variável em comparação a primeira variável. Silva et al (2017) constataram efeito direto positivo do peso de fruto por racemo (0,67), coincide com análise correlação de Pearson, sugerindo um alto valor de correlação entre peso de fruto por racemo x produtividade de grãos (0,85).…”
Section: Correlation and Path Analysis In Castor Bean And Sunflowerunclassified
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