Floração, frutificação e maturação de frutos de morangueiro cultivados em ambiente protegido

Antunes, Odirce Teixeira; Calvete, Eunice Oliveira; Rocha, Hélio Carlos; Nienow, Alexandre Augusto; Mariani, Franciele; Wesp, Cristiane de Lima

doi:10.1590/s0102-05362006000400006

Cited by 21 publications

(11 citation statements)

References 2 publications

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“…Character expression depends upon the genetic control of the organism, the environment in which it is grown, and the interaction between these two factors. Consequently, the probability of success in genetic breeding depends greatly on the inheritance, adaptability, and stability of the characters involved in the program (Antunes et al, 2006); therefore, choosing the right selection index increases breeding program success.…”

Section: Resultsmentioning

confidence: 99%

Selection of experimental strawberry (Fragaria x ananassa) hybrids based on selection indices

Vieira¹,

Souza²,

Martins³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. The strawberry (Fragaria x ananassa Dutch.), is the only vegetable belonging to the rosacea family. All strawberry species have now emerged from wild species and belong to the genus Fragaria, being that this genus presents more than 45 described species, and only 11 are considered natural species. Due to the octoploid nature of strawberry and its variability after hybridization, selecting one or more characters may result in unfavorable genotypes and even the exclusion of promising ones, because negative genetic correlations have been observed among them that cause inefficient selection. Therefore, the objective of this study was to verify the efficiency of selection indices in selecting experimental strawberry hybrids for in natura consumption and processing. Seven commercial cultivars and 103 hybrids were used, which were obtained from populations derived from their crossings. The experiment was conducted in augmented blocks, in which four agronomical traits (total mass, amount of commercial fruit, amount of noncommercial fruit, and average fruit mass) and seven physicalchemical traits (soluble solids, soluble solids:titratable acidity ratio, total sugars, total pectin, vigor, and internal and external coloration) were evaluated. For hybrid selection, the following indices were used: Mulamba and Mock (1978), Smith (1936), Hazel (1943, and genotype-ideotype, which selected 20% of the genotypes evaluated. The three indices selected about 9% of the hybrids. The selection of two experimental hybrids (89 and 495) and the use of selection indices resulted in larger estimates of selection gains. The Mulamba and Mock (1978), Smith (1936), andHazel (1943) indices had the highest percentage of gains on selection, and are therefore recommended for the selection of strawberry clones.

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Section: Resultsmentioning

confidence: 99%

Selection of experimental strawberry (Fragaria x ananassa) hybrids based on selection indices

Vieira¹,

Souza²,

Martins³

et al. 2017

Genet. Mol. Res.

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“…Dover e Comander foram as mais precoces, quando plantadas na época 1. A precocidade da 'Dover' é confirmada por outros autores, como Bueno et al (2002) e Antunes et al (2006). O início da colheita foi mais tardio nas cvs.…”

Section: Resultsunclassified

Fenologia, produção e teor de antocianinas de cultivares de morangueiro em ambiente protegido

et al. 2008

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RESUMO -A diversidade de cultivares de morangueiro exige estudos quanto à adaptação no local de cultivo. Por sua vez, a maior exigência do consumidor por produtos mais saudáveis requer informações a respeito das características nutracêuticas dos produtos. Este trabalho objetivou determinar as cultivares com maior adaptação ao cultivo protegido na região do Planalto Médio do Rio Grande do Sul, os teores de antocianinas, bem como a época de plantio que proporcionam maior produtividade. O experimento foi conduzido em um ambiente protegido de 280 m 2 , coberto com filme de polietileno de baixa densidade (PEBD), de 150 μm, com aditivo anti UV. O delineamento foi em blocos ao acaso, com três repetições, e os tratamentos em parcelas subdivididas, sendo as épocas de plantio das mudas (28 de abril e 13 de maio) as parcelas principais, e as cultivares (Dover, Tudla, Comander, Oso Grande, Campinas, Chandler, Serrano e Camarosa), as subparcelas. Foram avaliadas características fenológicas e componentes do rendimento. Os teores de antocianinas foram determinados por espectrofotometria, com comprimento de onda de 528 nm. Não houve interação entre cultivares e épocas de plantio sobre as características avaliadas. A maior produtividade foi do morangueiro cultivado precocemente, em abril. As cultivares Camarosa, Dover, Oso Grande e Tudla são as mais indicadas, pelo maior rendimento e escalonamento da produção, e a cultivar Serrano, pelo maior teor de antocianinas. Termos para indexação: Fragaria x ananassa Duch., época de plantio, valor nutracêutico. PHENOLOGY, PRODUCTION AND CONTENT OF STRAWBERRY CROPS CULTIVARS ANTHOCYANINS PRODUCED UNDER PROTECTED ENVIRONMENTABSTRACT -The diversification of strawberry cultivars demands studies about their adaptation in the cultivation place and, the increase of the consumer's requirement for healthier products require studies about the products nutraceutica characteristics. In such a way, this work aimed to determine the cultivars with higher adaptation under protected environment in Rio Grande do Sul, Planalto Médio region, the contents of anthocyanins, as well as the period that provides more productivity. The experiment was conduced in an inside structure of 280 m 2 covered with PEBD film, with 150 μm and anti UV additive. The designs were arranged in split plots with 3 repetitions, the treatments in subdivided portions, and the period for planting seedlings (April 28 th and May 13 th ) the main plots, and the cultivars (Dover, Tudla, Comander, Oso Grande, Campinas, Chandler, Serrano e Camarosa), the sub-plots. Phenological characteristics and yield components were evaluated. The content of anthocyanins was determinated by using a specterphotometer with wave length of 528 nm. There was no interaction between cultivars and planting periods about the evaluated characteristics. The higher productivity was the earlier planting strawberry crop in April. The cultivars Camarosa, Dover, Oso Grande and Tudla are the most recommended for their greater productivities and range of production periods, ...

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“…It is probable that the fall in production of the strawberry cultivars from the 20th week of cultivation (October 2012) is associated with the increase in temperatures that occurred from August 2012. According to Antunes et al (2006), it takes about 40 days from the appearance of the flower buds to harvesting the fruit, for the Oso Grande cultivar. Table 2 shows the results of variance analysis of the production data.…”

Section: Resultsmentioning

confidence: 99%

Production of strawberry cultivars in closed hydroponic systems and coconut fibre substrate

Miranda¹,

Silva²,

Santos³

et al. 2014

Rev. Ciênc. Agron.

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-The objective of this work was to evaluate yield and average fruit weight of strawberry cultivars Albion, Camarosa, Festival and Oso Grande, in two closed hydroponic systems (gutters and grow bags), using coconut fibre as substrate. The experimental design was of randomised blocks, divided into strips, with five replications. The hydroponic systems did not differ significantly as to yield, with advantages, such as savings in water and fertilizer and reduced environmental impact, over open systems. The most productive cultivar was Festival, followed by Oso Grande, with average yields of 6.99 kg m -2 and 5.56 kg m -2 respectively. The cultivars with the greatest fruit weight were Oso Grande and Albion, having averages of 11.8 and 11.1 g respectively, with the former being significantly superior to the latter. The highest yield (7.4 kg m -2 ) was obtained from the cultivar Festival under the gutter system. The Ibiapaba region has conditions which are favourable to strawberry production in relation to precocity (harvesting starts in the 6th week of growth) and production continues throughout the year; however there is a need to test new cultivars and to improve the cultivation techniques with an aim to producing larger-sized fruit.

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Floração, frutificação e maturação de frutos de morangueiro cultivados em ambiente protegido

Cited by 21 publications

References 2 publications

Selection of experimental strawberry (Fragaria x ananassa) hybrids based on selection indices

Selection of experimental strawberry (Fragaria x ananassa) hybrids based on selection indices

Fenologia, produção e teor de antocianinas de cultivares de morangueiro em ambiente protegido

Production of strawberry cultivars in closed hydroponic systems and coconut fibre substrate

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