Increasing economic interest in feijoa, native to southern Brazil and northern Uruguay, has triggered the need for further studies of crop. Despite its good suitability promising production potential, it been less grown both countries than others where was introduced. Therefore, this study aimed at evaluating growth parameters four Brazilian feijoa cultivars six seedling trees an organic system Embrapa - Estação Experimental da Cascata, Pelotas, Rio Grande do Sul (RS), Brazil. The evaluation...

ABSTRACT Shading limits pecan development, production, and quality in high-density orchards. In this study, we evaluated responses to hedge central pruning given by ‘Pitol 1’ trees implanted orchards regarding dry branches, of fruit. The experiment was conducted five cycles had a randomized block design that included the following treatments: 1) no pruning, 2) 3) pruning. number production yield, efficiency, variables fruit were evaluated. Central led 33.7% decrease branches. Hedge enabled...

Several high-density pecan orchards have exhibited unsatisfactory growth and production due to excessive shading. This study aimed investigate hedge central pruning tree thinning as alternative solutions increase the vegetative of trees in orchards. The experiment was conducted Santa Rosa, Rio Grande do Sul State, Brazil, using a randomized block design with three replicates, each consisting five trees. Treatments included: i) control (no treatment), ii) pruning, iii) iv) (tree removal). We...

Organic pecan production may offer not only a chance to increase economic returns-due its increased product value-but also avoid pesticide applications. This contributes the growth of residue-free food and protects environment. However, there is limited data on performance cultivars in ecologically-based systems, especially regarding susceptibility scab (Venturia effusa) during early developmental stages orchards. study aimed evaluate an organic system Pelotas, Rio Grande do Sul State,...

Resumo: O objetivo deste trabalho foi identificar porta-enxertos alternativos ao limoeiro 'Cravo' comum, para produção de laranja 'Pêra', nas condições dos Tabuleiros Costeiros Sergipe. Foram avaliados 43 quanto a altura, copa, taxa fotossintética, teor prolina, eficiência produtiva, e produtividade por planta. comum considerado como padrão. Os híbrido TSKC x (LCR TR) - 059, citrandarim 'Riverside', 'Cravo CNPMF 03' outros 12 superaram o na indução produtiva à copa; 'Rugoso Vermelho',...

Abstract The objective of this work was to evaluate the agronomical performance 'Piemonte' mandarin grafted on 11 rootstocks grown under edaphoclimatic conditions Coastal Tablelands, in state Sergipe, Brazil. following combined parameters were evaluated: vegetative growth, abundance phytophagous mites, plant yield, drought tolerance, and physicochemical quality fruit. had best productive when 'Santa Cruz Rangpur' lime, 'Red Rough' lemon, 'Sunki Tropical' mandarin, 'Riverside' citrandarin, it...

Citrus are attacked by pest mites such as the citrus rust mite Phyllocoptruta oleivora (Ashmead) (Acari: Eriophyidae) and spider Tetranychus mexicanus (McGregor) Tetranychidae). However, little is known on rootstocks influencing mites. We aimed to evaluate influence of population densities sweet oranges 'Pera CNPMF D-6' 'Valencia Tuxpan' throughout time. Adults both species were monthly counted during 19 months from June 2011 February 2013. Rootstocks influenced populations mites, since...

Abstract: The objective of this work was to evaluate the effect nine rootstocks on 'Jaffa' sweet orange (Citrus sinensis) for its vegetative, productive, and qualitative traits, susceptibility three pest mites (Eutetranychus banksi, Tetranychus mexicanus Phyllocoptruta oleivora). following parameters were evaluated: vegetative growth, yield, physiochemical characteristics fruit, density mites. 'Sunki Tropical' mandarin conferred high cumulative yields whereas 'Orlando' tangelo 'Rugoso...

Abstract In the peach tree cultivation, producer has challenge of obtaining good quality fruits and maintaining production in a balanced way over years. Thinning favors these parameters reduces fruit load on plants. Manual thinning commonly practiced trees requires high labor increases costs. Chemical as an alternative to manual thinning, which depending species, time concentration, demonstrated efficiency. The aim this study was evaluate effect metamitron applied at different seasons...

A nogueira-pecã (Carya illinoinensis) é uma espécie frutífera originária do Hemisfério Norte, mas que tem se adaptado as condições edafoclimáticas Brasil. Devido a essa adaptação seu cultivo vem aumentando de forma considerável nos últimos anos, principalmente na região Sul país, mais precisamente no estado Rio Grande Sul. O objetivo desse estudo foi caracterizar e identificar aspectos adoção práticas culturais tecnologias para produção noz-pecã Nos anos 2018 2019, foram aplicados presencial...

Pecan trees require adequate soil moisture conditions to produce nuts with good yield and quality. Irrigation should be an important considered practice in orchards management plan, mainly regions water deficit periods. The objective of this research was evaluate irrigation on pecan growth yield. This study conducted Uruguay, during the fast development phase until harvest. Three treatments were used: 0 L (control), 70 140 plant-1 every two days, applied via drip seven-year-old cultivar...

O conhecimento da fenologia permite identificar o momento fisiológico ao qual se encontram associadas as necessidades do vegetal que, uma vez atendidas, possibilitarão definir períodos propícios para a realização dos tratos culturais e de manejo. Nesse contexto, objetivo desse trabalho foi descrever escala BBCH nogueira-pecã, forma padronizar os estudos realizados sobre tema auxiliar no reconhecimento principais estádios fenológicos espécie Rio Grande Sul – Brasil Uruguai. Para descrição...

The study aimed to evaluate the incidence of biological and physiological disorders in field postharvested apples cvs. Gala, Fuji Catarina grown four production systems: conventional, organic transition, integrated organic. Apples were evaluated for damages related orchard after harvest. greatest attributed pests, especially Anastrepha fraterculus system Grapholita molesta transition. produced orchards had higher damage levels caused by postharvest than those other systems. For becoming from...

A produção integrada de frutas procura reduzir o uso agrotóxicos, eliminar produtos considerados perigosos para a saúde humana ou prejudicial meio ambiente e, ao mesmo tempo, fomentar as boas práticas manejo agrícola. Assim, os sistemas convencional (PC) e integrado (PI) pêssegos da cv. Marli foram comparados em relação às principais planta do solo, controle fitossanitário, aspectos econômicos, bem como à qualidade fruta, objetivando estabelecer sistema Produção Integrada Frutas Caroço...

This study aimed at evaluating the agronomical performance of ‘Pineapple’ sweet orange grafted on ten rootstocks, in 2011-2017 harvests, so as to recommend best combinations be commercially explored citrus growing regions Bahia and Sergipe states, Brazil. An experiment was installed test rootstock for 'pineapple' orange: 'Santa Cruz' Rangpur lime, 'Red Rough' Lemon, 'Orlando' Tangelo, 'Sunki Tropical' Mandarin, 'Swingle' citrumelo, citrandarins 'Indio' 'Riverside' hybrids HTR-051,...

Abstract: The objective of this work was to evaluate the effect collection period and exogenous application indolebutyric acid (IBA) on rooting cuttings from adult pecan (Carya illinoinensis) plants. experiment carried out in a greenhouse with intermittent mist irrigation, December 2017 October 2018. experimental design completely randomized, 4x5 factorial arrangement, four periods (spring, summer, autumn, winter) five concentrations IBA (0, 2,000, 4,000, 6,000, 8,000 mg L-1). For collected...

Pest populations in a given agroecosystem may be influenced by several abiotic and biotic variables, including the host plant cultivar.We compared population fluctuation of pest mites twenty citrus scion cultivars grafted on Rangpur lime (Citrus limonia).Adults rust mite Phyllocoptruta oleivora (Acari: Eriophyidae), Texas Eutetranychus banksi Tetranychus mexicanus Tetranychidae) were monthly counted each cultivar from April 2011 to February 2013 Sergipe state, northeastern Brazil.Larger E....

Kiwifruit vines are an alternative approach to diversify Brazilian fruit farming because of the low supply and increase in demand for their fruits. Hydrogenated cyanamide, which is most common rest-breaking agent, highly toxic its use not allowed organic production systems. This study aimed at evaluating efficiency agents kiwifruit by using biological method single node cutting. Twigs cultivar Bruno were collected orchard Pelotas, a city located Rio Grande do Sul state, Brazil....

This study aimed at evaluating the influence of two pruning methods, as well absence pruning, on vegetative and productive development in quality pecan fruits a high-density orchard. The experiment was conducted with cultivar Melhorada commercial orchard municipality Santa Rosa, Rio Grande do Sul (RS), Brazil. carried out between July 2018 June 2020. In randomized block design, following treatments were applied: no hedge central pruning. Hedge increased limb growth, while decreased number...