Relações de causa e efeito em espigas de milho relacionadas aos tipos de híbridos

Lopes, Sidinei José; Lúcio, Alessandro Dal’Col; Storck, Lindolfo; Damo, Henrique Perin; Brum, Betânia; Santos, Valdecir José dos

doi:10.1590/s0103-84782007000600005

Cited by 58 publications

(60 citation statements)

References 11 publications

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“…In the analysis of the correlation pairs, the magnitude of genotypic relations is superior to the phenotypic correlations, indicating that genotypic components have greater magnitude in the total correlation (FALCONER & MACKAY 1996). The genetic correlation is important because it represents the heritable fraction of the parent characters to progeny, usually caused by effects of pleiotropic or linked genes, being one important attribute in breeding programs (COIMBRA et al, 2005;LOPES et al, 2007;ANDRADE & MIRANDA FILHO, 2008;HALLAUER et al, 2010;TOEBE & CARGNELUTTI FILHO, 2013).…”

Section: Resultsmentioning

confidence: 99%

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Association of secondary traits with yield in maize F 1 's

et al. 2016

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Section: Resultsmentioning

confidence: 99%

“…The literature presents some studies on the relationship between characters of agronomic importance to the corn crop, via path analysis (LOPES et al, 2007;ANDRADE & MIRANDA FILHO, 2008;BARROS et al, 2010;TOEBE & CARGNELUTTI FILHO, 2013). For secondary morphological characters, there are few studies linking them with the yield of corn grain.…”

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confidence: 99%

Association of secondary traits with yield in maize F 1 's

et al. 2016

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“…While later sowings produce a smaller number of ears, the production of photo-assimilates is destined to the formation of ears of a greater size. However, the sizes of the ears contribute very little to the production definition when the number of ears presented in an area is small (Lopes et al, 2007).…”

Section: Journal Of Agricultural Sciencementioning

confidence: 99%

Yield and Physical and Physiological Quality of Salvia hispanica L. Seeds Grown at Different Sowing Dates

Goergen¹,

Nunes²,

Lago³

et al. 2018

JAS

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Variations in the sowing date of chia (Salvia hispanica L.) reflect directly on the physiological potential of the produced seeds. This study aimed to analyze the yield and the physical and physiological quality of seeds from the main stem and branches of Salvia hispanica plants grown at different sowing dates. A field experiment was conducted in the crop year of 2016/2017 in five sowing dates (16/09/22, 16/10/28, 17/01/03, 17/02/08 and 17/03/24) in a randomized complete block design with four replicates. Harvest at each sowing date was done when 80% of the leaves of each plant exhibited a darker color, indicating that they were dry. Seed yield was determined in each plant compartment (main stem and branches) and final ear length (cm) and diameter (cm) were also measured at all sowing dates. The following physical and physiological tests were performed to determine seed quality: water content, mass of one thousand seeds, germination test, first count germination, length (root and hypocotyl) and dry matter of the seedlings. Chia can be sown from September to February providing seed yield with high physical and physiological quality. The physical and physiological quality of the chia seeds does not differ between main stem and branches. In late sowing, there is the risk of frost occurrence what may impair the physiological quality and the yield of chia seeds. The best sowing month for obtaining higher yield of chia seeds in a south subtropical region is January.

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“…The total correlation presents (r = 0.06) null, this fact does not result in absence of association among the characters, but the linearity of the data obtained for the cob diameter. Studies reveal that the diameter of the cob had positive relation with the characters related to the size of the spike, such as; number of grain rows of the spike, mass of the spike and mass of grain per spike (Lopes et al, 2007).…”

Section: Resultsmentioning

confidence: 99%

Interrelations of Characters and Multivariate Analysis in Corn

Szareski¹,

Carvalho²,

Kehl³

et al. 2018

JAS

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The objective of this work was to evaluate the agronomic performance of corn hybrids, the interrelations of the characters with the grain yield, and to genetically discriminate the corn hybrids by means of the dispersion analysis of the canonical variables. The experiment was conducted in the agricultural crop of 2013/2014, in an area belonging to the Federal University of Santa Maria, Campus of Frederico Westphalen, RS. The experimental design was a randomized block design, with four replications. The treatments were composed of seven maize hybrids with different genetic bases and maturation cycles. The LG 6304 modified simple hybrid has higher grain yield than the others. The characters plant height, spike insertion height and number of grains per row of spike have positive interrelations with grain yield of corn hybrids. Hybrids are not grouped according to the genetic basis and maturation cycle. The canonical variables explain 94.62% of the existing genetic variation, and allows the formation of five groups of maize hybrids.

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Relações de causa e efeito em espigas de milho relacionadas aos tipos de híbridos

Cited by 58 publications

References 11 publications

Association of secondary traits with yield in maize F 1 's

Association of secondary traits with yield in maize F 1 's

Yield and Physical and Physiological Quality of Salvia hispanica L. Seeds Grown at Different Sowing Dates

Interrelations of Characters and Multivariate Analysis in Corn

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