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Pesquisa : B01.650.940.800.575.912.250.859.937.500.699 [Categoria DeCS]
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Texto completo SciELO Chile
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Id: biblio-950767
Autor: Ikinci, Ali; Bolat, Ibrahim; Ercisli, Sezai; Kodad, Ossama.
Título: Influence of rootstocks on growth, yield, fruit quality and leaf mineral element contents of pear cv. 'Santa Maria' in semi-arid conditions
Fonte: Biol. Res;47:1-8, 2014. graf, tab.
Idioma: en.
Resumo: BACKGROUND: Rootstocks play an essential role to determining orchard performance of fruit trees. Pyrus communisand Cydonia oblonga are widely used rootstocks for European pear cultivars. The lack of rootstocks adapted to different soil conditions and different grafted cultivars is widely acknowledged in pear culture. Cydonia rootstocks (clonal) and Pyrus rootstocks (seedling or clonal) have their advantages and disadvantages. In each case, site-specific environmental characteristics, specific cultivar response and production objectives must be considered before choosing the best rootstock. In this study, the influence of three Quince (BA 29, Quince A = MA, Quince C = MC) and a local European pear seedling rootstocks on the scion yield, some fruit quality characteristics and leaf macro (N, P, K, Ca and Mg) and micro element (Fe, Zn, Cu, Mn and B) content of 'Santa Maria' pear (Pyrus communis L.) were investigated. RESULTS: Trees on seedling rootstock had the highest annual yield, highest cumulative yield (kg tree(-1)), largest trunk cross-sectional area (TCSA), lowest yield efficiency and lowest cumulative yield (ton ha(-1)) in the 10th year after planting. The rootstocks had no significant effect on average fruit weight and fruit volume. Significantly higher fruit firmness was obtained on BA 29 and Quince A. The effect of rootstocks on the mineral element accumulation (N, K, Ca, Mg, Fe, Zn, Cu, Mn and B) was significant. Leaf analysis showed that rootstocks used had different mineral uptake efficiencies throughout the early season. CONCLUSION: The results showed that the rootstocks strongly affected fruit yield, fruit quality and leaf mineral element uptake of 'Santa Maria' pear cultivar. Pear seedling and BA 29 rootstock found to be more prominent in terms of several characteristics for 'Santa Maria' pear cultivar that is grown in highly calcareous soil in semi-arid climate conditions. We determined the highest N, P (although insignificant), K, Ca, Mg, Fe and Cu mineral element concentrations on the pear seedling and BA 29 rootstocks. According to the results, we recommend the seedling rootstock for normal density plantings (400 trees ha(-1)) and BA 29 rootstock for high-density plantings (800 trees ha(-1)) for 'Santa Maria' pear cultivar in semi-arid conditions.
Descritores: Raízes de Plantas/metabolismo
Folhas de Planta/química
Pyrus/classificação
Pyrus/crescimento & desenvolvimento
Pyrus/química
Clima Desértico
Produção Agrícola/métodos
Frutas/metabolismo
-Fósforo/análise
Potássio/análise
Chuva
Solo
Temperatura
Turquia
Zinco/análise
Boro/análise
Cálcio/análise
Cobre/análise
Rosaceae/fisiologia
Plântula/crescimento & desenvolvimento
Plântula/fisiologia
Ferro/análise
Magnésio/análise
Manganês/análise
Nitrogênio/análise
Responsável: CL1.1 - Biblioteca Central


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Texto completo SciELO Brasil
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Id: biblio-886869
Autor: PASA, MATEUS S; SILVA, CARINA P DA; CARRA, BRUNO; BRIGHENTI, ALBERTO F; SOUZA, ANDRÉ LUIZ K DE; PETRI, JOSÉ LUIZ.
Título: Thidiazuron (TDZ) increases fruit set and yield of 'Hosui' and 'Packham's Triumph' pear trees
Fonte: An. acad. bras. ciênc;89(4):3103-3110, Oct.-Dec. 2017. tab, graf.
Idioma: en.
Projeto: Conselho Nacional de Desenvolvimento Científico e Tecnológico.
Resumo: ABSTRACT The low fruit set is one of the main factors leading to poor yield of pear orchards in Brazil. The exogenous application of thidiazuron (TDZ) and aminoethoxyvinilglycine (AVG) has shown promising results in some pear cultivars and other temperate fruit trees. The objective of this study was to evaluate the effect of TDZ and AVG on fruit set, yield, and fruit quality of 'Hosui' and 'Packham's Triumph' pears. The study was performed in a commercial orchard located in São Joaquim, SC. Plant material consisted of 'Hosui' and 'Packham's Triumph' pear trees grafted on Pyrus calleryana. Treatments consisted on different rates of TDZ (0 mg L-1, 20 mg L-1, 40 mg L-1 and 60 mg L-1) sprayed at full bloom for both cultivars. An additional treatment of AVG 60 mg L-1 was sprayed one week after full bloom in 'Hosui'. The fruit set, number of fruit per tree, yield, fruit weight, seed number, and fruit quality attributes were assessed. Fruit set and yield of both cultivars are consistently increased by TDZ, within the rates of 20 to 60 mg L-1. Besides, its application increased fruit size of 'Hosui' and did not negatively affect fruit quality attributes of both cultivars.
Descritores: Compostos de Fenilureia/farmacologia
Tiadiazóis/farmacologia
Pyrus/efeitos dos fármacos
Glicina/análogos & derivados
-Compostos de Fenilureia/administração & dosagem
Tiadiazóis/administração & dosagem
Pyrus/crescimento & desenvolvimento
Produção Agrícola
Glicina/administração & dosagem
Glicina/farmacologia
Responsável: BR1.1 - BIREME


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Texto completo SciELO Chile
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Id: lil-538012
Autor: Rojas, Gabriela; Méndez, Marco A; Muñoz, Carlos; Lemus, Gamalier; Hinrichsen, Patricio.
Título: Identification of a minimal microsatellite marker panel for the fingerprinting of peach and nectarine cultivars
Fonte: Electron. j. biotechnol;11(5):4-5, Dec. 2008. ilus, tab.
Idioma: en.
Projeto: FONDEF.
Resumo: The genetic characterization of 117 peach and nectarine cultivars (Prunus persica (L.) Batsch) using microsatellite (SSR) markers is presented. Analyzed genotypes include the complete list of cultivars under intellectual property (IP) protection in Chile. One hundred and two out of the 117 cultivars under study could be identified using only 7 SSRs. Other 5 cultivars were differentiated using 3 additional markers, but 5 pairs of genotypes were not differentiable. The average expected heterozygosity for the set of markers was 0.55, ranging from 0.28 in BPPCT-008 to 0.81 in CPPCT-022, with an F value of 0.37. A Neighbor-Joining dendrogram showed that, with few exceptions, peaches and nectarines clustered separately. These results are the basis for the development of a fingerprinting protocol for the unequivocal identification of most of the peach and nectarine cultivars officially registered in Chile.
Descritores: Cultivos Agrícolas
Amygdalus persica/isolamento & purificação
Genoma de Planta
Pyrus/genética
-Impressões Digitais de DNA
Repetições de Microssatélites/genética
Clima Temperado
Responsável: CL1.1 - Biblioteca Central



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