Full Length Research Paper
ABSTRACT
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.
Key words: Breeding, Carica papaya, intrablock correlation.
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
CONCLUSION
CONFLICT OF INTERESTS
ACKNOWLEDGEMENT
REFERENCES
Alves SMF, Seraphin JC (2004). Coeficiente de heterogeneidade do solo e tamanho de parcela. Pesqui. Agropecu. Bras. 39:105-111. |
|
Barbosa MHP, Peternelli LA, Silveira LCI (2001). Plot size in sugarcane family selection experiments. Crop Breed. Appl. Biotechnol. 1:271-276. |
|
Brito MCM, Faria GA, Morais AR, Souza EM, Dantas JLL (2012). Estimação do tamanho ótimo de parcela via regressão antitônica. Rev. Bras. Biom. 30:353-366. |
|
Cargnelutti Filho A, Toebe M, Alves BM, Burin C, Neu IM, Facco G (2014). Tamanho amostral para avaliar a massa de plantas de mucuna cinza. Comum. Sci. 5:196-204. |
|
Casler MD (2013). Finding Hidden Treasure: A 28-year case study for optimizing experimental designs. Commun. Biom. Crop Sci. 8:23-38. |
|
Celanti HF, Schmildt ER, Schmildt O, Alexandre RS, Cattaneo LF (2016a). Optimal plot size in the evaluation of papaya scions: proposal and comparison of methods. Rev. Cer. 63:469-476. |
|
Celanti HF, Schmildt O, Alexandre RS, Cattaneo LF, Schmildt ER (2016b). Plot size in the evaluation of papaya seedlings 'Baixinho de Santa Amália' in tubes. Rev. Bras. Frut. 38:1-15. |
|
Cortes DFM, Santa-Catarina R, Barros GBA, Aredes FAS, Silveira SF, Ferreguetti GA, Pereira MG (2017). Model-assisted phenotyping by digital images in papaya breeding program. Sci. Agric. 74:294-302. |
|
Cruz CD (2016). Genes Software – extended and integrated with the R, Matlab and Selegen. Acta Sci. Agron. 38:547-552. |
|
Dantas JLL, Lucena RS, Boas SAV (2015). Avaliação agronômica de linhagens e híbridos de mamoeiro. Rev. Bras. Frut. 37:138-148. |
|
Food and Agriculture Organization (FAO) (2014). Food and Agriculture Organization of the United Nations. |
|
Hatheway WH (1961). Convenient plot size. Agron. J. 53:279-280. |
|
Khan M, Hasija RC, Tanwar N (2017). Optimum size and shape of plots based on data from a uniformity trial on Indian Mustard in Haryana. Mausam 68:67-74. |
|
Leite MSO, Peternelli LA, Barbosa MHP (2006). Effects of plot size on the estimation of genetic parameters in sugarcane families. Crop Breed. Appl. Biotechnol. 6:40-46. |
|
Lima JF, Peixoto CP, Ledo CAS, Faria GA (2007). Tamanho ótimo de parcela para experimentos com planta de mamoeiro em casa de vegetação. Ciênc. Agrotec. 31:1411-1415. |
|
Lin CS, Binns MR (1984). Working rules for determining the plot size and numbers of plots per block in field experiments. J. Agric. Sci. 103:11-15. |
|
Lin CS, Binns MR (1986). Relative efficiency of two randomized block designs having different plot size and numbers of replications and of plots per block. Agron. J. 78:531-534. |
|
Lorentz LH, Erichsen R, Lúcio AD (2012). Proposta de método para estimação de tamanho de parcela para culturas agrícolas. Rev. Cer. 59:772-780. |
|
Luz LN, Pereira MG, Barros FR, Barros GB, Ferreguetti GA (2015). Novos híbridos de mamoeiro avaliados nas condições de cultivo tradicional e no semiárido brasileiro. Rev. Bras. Frut. 37:159-171. |
|
Meier VD, Lessman KJ (1971). Estimation of optimum field plot shape and size for testing yield in Crambea byssinica Hochst. Crop Sci. 11:648-650. |
|
Muniz JA, Aquino LH, Simplício E, Soares AR (2009). Estudo do tamanho de parcelas experimentais em povoamentos de Eucalyptus grandis Hill, usando parcelas lineares. Ciênc. Agrotec. 33:1002-1010. |
|
Oliveira EJ, Fraife Filho GA, Freitas JPX, Dantas JLL (2014). Desempenho produtivo e interação genótipo x ambiente em híbridos e linhagens de mamoeiro. Biosci. J. 30:402-410. |
|
Paranaíba PF, Ferreira DF, Morais AR (2009). Tamanho ótimo de parcelas experimentais: Proposição de métodos de estimação. Rev. Bras. Biomed. 27:255-268. |
|
Pimentel-Gomes F (1984). O problema do tamanho das parcelas em experimentos com plantas arbóreas. Pesqui. Agropecu. Bras. 19:1507-1512. |
|
Pimentel-Gomes F (2009). Curso de estatística experimental, 15nd ed., Fealq, Piracicaba, Brazil. |
|
Poltronieri TPS, Silveira SF, Vivas M, Santa-Catarina R, Cortes DFM, Azevedo AON, Pereira MG (2017). Selecting black-spot resistant papaya genotypes derived from backcrossing and hybrids. Gen. Mol. Res. 16:1-11. |
|
Santos PHD, Silveira SF, Vivas M, Carvalho BM, Pereira MG (2017). Alternative control to black spot disease in papaya genotypes. Sum. Phytop. 43:60-62. |
|
Schmildt ER, Schmildt O, Cruz CD, Cattaneo LF, Ferreguetti GA (2016). Optimum plot size and number of replications in papaya field experiment. Rev. Bras. Frut. 38:1-9. |
|
Silva CA, Nascimento AL, Ferreira JP, Schmildt O, Malikouski RG, Alexandre RS, Schmildt ER (2017). Genetic diversity among papaya accessions. Afr. J. Agric. Res. 12:2041-2048. |
|
Silva WM, Moraes MLT, Pupin S, Silva JM, Sebbenn AM, Pavan BE (2016). Influência do tamanho de parcelas experimentais na seleção de progênies de E. camaldulensis Dehnh. Sci. For. 44:979-986. |
|
Sousa RP, Silva PSL, Assis JP, Silva PIB, Silva JCV (2015). Optimum plot size for experiments with the sunflower. Ver. Ciênc. Agron. 46:170-175. |
|
Storck L, Cargnelutti Filho A, Lúcio AD, Lopes SJ (2009). Método de Papadakis e número de repetições em experimentos de soja. Ciênc. Rur. 39:977-982. |
|
Storck L, Ribeiro ND, Lopes SJ, Cargnelutti Filho A, Carvalho MP, Jost E (2007). Persistência do plano experimental em ensaios de avaliação de germoplasma elite de feijão. Ciênc. Rur. 37:1549-1553. |
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