Avaliação Agronômica De Linhagens E Híbridos De Mamoeiro

Dantas, J. L. L.; Lucena, Rangel Sales; Boas, S. A. Vilas

doi:10.1590/0100-2945-022/14

Cited by 17 publications

(22 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Statistical analyses were performed using Genes (Cruz, 2016) and Excel ® software. (Oliveira et al, 2014;Dantas et al, 2015;Luz et al, 2015). In both experiments, there was a significant difference between the means for the assayed genotypes with productivity of the first trial of 79 and of 66 t ha -1 in the second experiment, always for the first year of cultivation.…”

Section: Source Of Variation Degrees Of Freedom Mean Square (Ms) Expementioning

confidence: 82%

“…Field experimentation with papaya has been carried out quite frequently in order to implement new technologies for the crop Santos et al, 2017) and to evaluate plant productivity (Oliveira et al, 2014;Dantas et al, 2015;Luz et al, 2015) and disease resistance (Poltronieri et al, 2017) of new genotypes. In experiments carried out to evaluate the productivity of new genotypes, Oliveira et al (2014) Dantas et al (2015) used 6 plants per plot and Luz et al (2015) 10 plants per plot, both with 4 replications in a randomized block design.…”

Section: Introductionmentioning

confidence: 99%

“…In experiments carried out to evaluate the productivity of new genotypes, Oliveira et al (2014) Dantas et al (2015) used 6 plants per plot and Luz et al (2015) 10 plants per plot, both with 4 replications in a randomized block design. This variable number suggests the convenience in carrying out a sound investigation to establish optimum plot size for papaya field experiments.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimum plot size for experiments with papaya genotypes in field

Schmildt¹,

Nascimento²,

Nascimento³

et al. 2018

Afr. J. Agric. Res.

View full text Add to dashboard Cite

The objective of this study was to determine a suitable plot size for field experiments with papaya genotypes. Two experiments were carried out using a randomized complete block design with 11 and 12 papaya genotypes, respectively. In both experiments, plots consisted of one row, with 10 plants each. Spacing between rows was 3.5 m, with 1.5 m between plants. The characteristic evaluated was fruit production in t ha -1 in first year of cultivation, and the basic unit used was one plant. Suitable plot size was estimated using Lin and Binns, and Hatheway's methods. These methods are complementary and should be used together in the determination of the optimum plot size. The results of these tests showed that the optimum plot size for the evaluation of yield in papaya was four plants by plot with four replications each assuming 30% of the precision for establishing differences among the means of two genotypes.

show abstract

Section: Source Of Variation Degrees Of Freedom Mean Square (Ms) Expementioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimum plot size for experiments with papaya genotypes in field

Schmildt¹,

Nascimento²,

Nascimento³

et al. 2018

Afr. J. Agric. Res.

View full text Add to dashboard Cite

show abstract

“…Recent efforts in Brazil have studied hybrids of crosses between the groups Solo and Formosa Ide et al, 2009;Dantas et al, 2015;Luz et al, 2015). In addition, Vivas et al (2013) found variability and possible hybrid combinations within the Solo group.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of new papaya hybrids

Nascimento¹,

Nascimento²,

Schmildt³

et al. 2018

Afr. J. Agric. Res.

View full text Add to dashboard Cite

“…Despite this, Brazilian breeding programs have contributed to the development of new cultivars that have both superior agronomic and commercial qualities (Dantas et al, 2015). Although in recent years breeding programs have achieved satisfactory results regarding the introduction of cultivars with high agricultural ability, overcoming current levels of productivity is a great challenge (Silva, 2008).…”

Section: Introductionmentioning

confidence: 99%

Prediction of genetic gains with selection between and within S2 progenies of papaya using the REML/Blup analysis

Silva

Neto

Silva

2017

Pesq. agropec. bras.

View full text Add to dashboard Cite

-The objective of this work was to predict the genetic gains with selection of superior individuals within papaya (Carica papaya) progenies using the REML/Blup analysis. Thirty-six S 2 progenies, originated from the Calimosa and Tainung 1 hybrids, and two commercial control checks were evaluated in a randomized complete block design, with four replicates. The following traits were evaluated: heights of plants and first fruit; stem diameter at 12 and 18 months; number of days required for fruiting; number, mass, and average mass of commercial fruit; and number and mass of carpelloid and pentandric fruit. The magnitudes of the genetic parameters indicated that the variability present in most of the characters allows greater genetic gain if the selection is made at the progeny level, and not in individual plants. For selection among progenies, PROT-268, PROT-74, PROT-55, and PROT-22 were the most promising, with the greatest genetic gain for the studied characters. In the selection among and within progenies, the prediction of the gains is higher for the increase in the expression of the number of commercial fruit and for the decrease in the expression of pentandric fruit.Index terms: Carica papaya, agronomic traits, genetic parameters, mixed models, selective accuracy. Predição de ganhos genéticos com a seleção entre e dentro de progênies S 2 de mamoeiro por meio de análise REML/BlupResumo -O objetivo deste trabalho foi predizer os ganhos genéticos em mamoeiro (Carica papaya) com a seleção dos indivíduos superiores dentro de progênies, por meio da análise REML/Blup. Foram avaliadas 36 progênies S 2 , oriundas dos híbridos Calimosa e Tainung 1, e duas testemunhas comerciais, no delineamento de blocos ao acaso, com quatro repetições. Os caracteres avaliados foram: altura de planta e do primeiro fruto; diâmetro de caule aos 12 e 18 meses; número de dias requeridos para surgimento do primeiro fruto; número, massa e massa média de frutos comerciais; e número e massa de frutos carpeloides e pentândricos. As magnitudes dos parâmetros genéticos estimados indicaram que a variabilidade presente, para a maioria dos caracteres, possibilita maiores ganhos genéticos se a seleção for praticada em progênies e não por plantas individuais. Para a seleção entre progênies, PROT-268, PROT-74, PROT-55 e PROT-22 foram as mais promissoras, com os maiores ganhos genéticos para os caracteres estudados. Na seleção entre e dentro de progênies, a predição dos ganhos é maior para o aumento da expressividade do número de frutos comerciais e para a redução da expressividade do número de frutos pentândricos.

show abstract

Avaliação Agronômica De Linhagens E Híbridos De Mamoeiro

Cited by 17 publications

References 13 publications

Optimum plot size for experiments with papaya genotypes in field

Optimum plot size for experiments with papaya genotypes in field

Evaluation of new papaya hybrids

Prediction of genetic gains with selection between and within S2 progenies of papaya using the REML/Blup analysis

Contact Info

Product

Resources

About