Características agronômicas de seis genótipos de maracujazeiro-azedo cultivados no Distrito Federal

Abstract

rEsUMO -este trabalho teve como objetivo avaliar as características agronômicas de seis genótipos de maracujazeiro-azedo cultivados no distrito Federal. o experimento foi desenvolvido na área experimental da Fazenda Água limpa da universidade de Brasília, no dF. utilizou-se o delineamento em blocos casualizados, com quatro repetições, seis tratamentos e sete plantas por parcela. Foram avaliados os genótipos: Rubi gigante, ec-3-0, ec-l-7, Rc-3, Redondão e gigante amarelo. os parâmetros analisados, durante seis meses (17 colheitas), foram: produtividade total estimada, quantidade de frutos e coloração da casca. o genótipo Rubi gigante teve a maior produtividade (16,69 t/ha -1 ), enquanto o Rc-3 a menor (2,92 t/ha -1 ). Foram observados resultados semelhantes quanto às variáveis: produtividade total e quantidade de frutos de tamanho: primeira, 1B e 1A em relação aos seis genótipos. Não houve diferença significativa a 5%, pelo teste de Tukey, para: % de frutos de coloração amarela, rosa e roxa; massa fresca de frutos amarelos e rosas; quantidade de frutos rosas e roxos, e também quantidade de frutos de tamanho 2a e 3a em relação a todos os genótipos avaliados. os genótipos Rubi gigante, Redondão, ec-3-0 e ec-l-7 podem ser recomendados para o cultivo no DF e região geoeconômica, se confirmarem a superioridade quando avaliados por um maior período e em diferentes condições ambientais. Termos para indexação: melhoramento genético, Passiflora edulis,f. flavicarpa, características agronô-micas. AgrONOMIC FEATUrEs OF sIX gENOTYpEs OF pAssION FrUIT CUlTIvATEd IN dIsTrITO FEdErAl, BrAzIlABsTrACT -this work had as objective to evaluate the agronomic features of six cultivated genotypes of passion fruit in the distrito Federal. the experiment was developed in the experimental area of Fazenda Água limpa (Fal) unB, Brasilia-dF. the experimental design was randomized blocks with four useful repetitions, with six treatments, and seven plants per parcel. the six genotypes that had been evaluated were: Rubi gigante, ec-3-0, ec-l-7, Rc-3, Redondão and gigante amarelo. the analyzed parameters, in a period of six months (17 harvests) had been: total estimate productivity, quantity of fruits and coloration of the rind. the genotype Rubi gigante had the biggest productivity (16, 69 t/ t/ha -1 ), while the Rc-3 the minor (2,92 t/ t/ha -1 ).it was observed similar results for the parameters: average productivity and quantity of fruit number of sizes: first, 1B and 1A in relation to all the evaluated genotypes. It did not have significant difference for the Tukey test at 5% between the variables: % of yellow, pink and purple fruits; fresh mass of yellow and pink fruits; amount of pink and purple fruits and also amount of size of the fruits 2A and 3A in relation to all the evaluated genotypes. the genotypes, Rubi gigante, Redondão, ec-3-0 and ec-l-7 can be recommended for the culture in the DF and geo-economic region, if it was confirmed the superiority when evaluated by a bigger period and in different ambient conditions.

Phenotyping of Passiflora edulis, P. setacea, and their hybrids by a multivariate approach

“…In this study, we found higher values for FW, LD, and SST than those obtained by Silva et al (2012) while evaluating 144 full-sib progenies derived from the second cycle of recurrent selection. Abreu et al (2009) found values that were lower than those obtained in this study for FW, WP, SST, and NS for the cultivar Gigante Amarelo.…”

“…Negreiros et al (2008) report that both the juice industry and the fresh fruit market regard skin thickness as a relevant factor in fruit ranking because it is inversely proportional to juice yield. The hybrid EC-L-7 (Sul Brasil x Marília), which was rated by Abreu et al (2009), showed an average skin thickness of 7.0 mm and a WP value of 37.75 g. In this study, group III obtained an average skin thickness of 6.6 mm and a WP value of 77.03 g, which indicates that selection over time was effective for these traits. Akamine and Girolami (1959) found a positive correlation between the NS per fruit and juice content; thus, a larger NS tends to provide higher yields of juice.…”

Agronomic characterization and genetic parameter estimation in yellow passion fruit

“…Studies on the agronomic traits of different yellow passion fruit genotypes cultivated in the Federal District have demonstrated distinct behavior for EC-3-0. According to these data, genotype EC-3-0 presented superior performance, with a total yield of 15,460 (ABREU et al, 2009) and 26,480 kg ha -1 (JUNQUEIRA et al, 2003). Coimbra et al (2012), Maia et al (2009), andJunqueira et al (2003) observed a superior performance for EC-RAM in relation to the other genotypes, with an estimated total yield of 43,287; 13,968; and 32,880 kg ha -1 , respectively.…”

“…The agronomic performance was evaluated at one year after planting, from November 2009 to April 2010, totaling 20 harvests. Fruits were weekly harvested from the ground, weighed, and classified according to their equatorial diameter (D), as follows: 1C (D ≤ 55 mm); 1B (55 < D ≤ 65 mm); 1A (65 < D ≤ 75 mm); 2A (75 < D ≤ 90 mm); 3A (D > 90 mm) (ABREU et al, 2009). Estimated yield (kg ha -1 ) and number of fruits per hectare (considering 9,697 plants per hectare), and fruit weight (g) were evaluated for all diameter classes together (total), as well as for each diameter class.…”

Productivity, Fruit Physicochemical Quality and Distinctiveness of Passion Fruit Populations

“…Zaccheo et al (2012) found ratio values in passion fruit hybrids close to those of the present study, ranging from 4.3 to 2.6. Abreu et al (2009) found for BRS Gigante Amarelo cultivar, ratio value of 1.92. In general, it was observed that populations and cultivars presented physicochemical characteristics that meet the quality demanded by both fresh market and industry.…”