1967
DOI: 10.2135/cropsci1967.0011183x000700050030x
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Basis of Yield Component Compensation in Crop Plants With Special Reference to the Field Bean, Phaseolus vulgaris1

Abstract: Negative correlations among yield components are wide spread among the major crop plants, particularly under various kinds of environmental stress. The correlations are believed to be developmental rather than genetic per se, and are postulated to be caused by genetically independent components, developing in a sequential pattern, that are free to vary in response to either 1) a limited constant input of metabolites, or 2) an oscillatory input of these substances such that input is limiting at critical stages … Show more

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Cited by 329 publications
(225 citation statements)
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“…Com base nesses resultados, sugere-se aos melhoristas de feijão que, para a obtenção de maior precisão experimental nos ensaios de VCU, seja utilizada maior quantidade de sementes e que, através de desbaste das plantas, a densidade seja ajustada conforme a recomendação para as cultivares de diferentes hábitos de crescimento. Dessa maneira, valores de CV% menores poderão ser obtidos, o que minimizaria o problema de descarte de dados de ensaios de VCU devido ao não atendimento da norma prevista quanto à precisão experimental (BRASIL, 2001).…”
Section: Resultsunclassified
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“…Com base nesses resultados, sugere-se aos melhoristas de feijão que, para a obtenção de maior precisão experimental nos ensaios de VCU, seja utilizada maior quantidade de sementes e que, através de desbaste das plantas, a densidade seja ajustada conforme a recomendação para as cultivares de diferentes hábitos de crescimento. Dessa maneira, valores de CV% menores poderão ser obtidos, o que minimizaria o problema de descarte de dados de ensaios de VCU devido ao não atendimento da norma prevista quanto à precisão experimental (BRASIL, 2001).…”
Section: Resultsunclassified
“…Diante do exposto, pode-se questionar a necessidade de que seja reavaliado esse critério preestabelecido de condicionar o aproveitamento de dados de experimentos de VCU, apenas se o CV% for inferior a 20% (BRASIL, 2001), haja vista que, ensaios com a cultura do feijoeiro são considerados de média precisão experimental se o coeficiente de variação estiver entre 15,5 a 27,0% (LÚCIO, 1997) ou entre 14,0 a 26,5% …”
Section: Resultsunclassified
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“…The results of these studies have been mixed. Many have shown that character correlations are not stable across environments (Adams, 1967;Primack and Antonovics, 1981;Antonovics and Primack, 1982;Singh and Chowdhury, 1983;Schlichting 1986Schlichting , 1989aAriyo et al, 1987;Lechowicz and Blais, 1988;Andersson, 1989;Pigliucci et al, 1991Pigliucci and Schlichting, 1998;Callahan and Waller, 2000;Pigliucci and Marlow, 2001). Other studies support the hypothesis of character integration: they have shown stability of correlations (Winn and Evans, 1991;Meerts, 1992;Kudoh et al, 1996), that putatively functionally or developmentally related traits are more highly correlated across environments than other traits (Waitt and Levin, 1993); and that within populations, those individuals with the greatest integration of characters across environments have the highest fitness (Schlichting, 1989b).…”
Section: Mechanisms Of Developmental Plasticitymentioning
confidence: 99%