Individual sealing and tray wrap of orange (Citrus sinensis (L.) Osbeck cv. ‘Valencia’) with heat-shrinkable films of low-density polyethylene (LDPE), high-density polyethylene (HDPE), oriented polypropylene (OPP) and polyvinyl chloride (PVC) were held for a period up to 4 months at 5°C and 85-90% RH. Both methods of film-packaging showed little change in the water relations characteristics, wh...

Detached leaves of Valencia oranges, Citrus sinensis Osbeck, emanated ethylene at markedly higher rates and contained more endogenous ethylene when placed under water stress at 55% relative humidity than when placed in water-saturated air. Water stress induced defoliation from detached branches. Relieving the water stress of such leaves by transfer to a mist chamber resulted in lowering of the ...

Citrus aroma and flavor, chief traits of fruit quality, are derived from their high content in essential oils of most plant tissues, including leaves, stems, flowers, and fruits. Accumulated in secretory cavities, most components of these oils are volatile terpenes. They contribute to defense against herbivores and pathogens, and perhaps also protect tissues against abiotic stress. In spite of ...

Greenhouse-grown l-year-old sweet orange trees [Citrus sinensis (L.) Osbeck cv. Valencia] on cold-hardy trifoliate orange [Poncirus trifoliata (L.) Raf.] and cold-sensitive citron (C. medica L.) rootstocks were exposed to cold-acclimation conditions and freeze-tested at -6.7C for 4 hours in a temperature-programed walk-in freezer room. Nonhardened trees generally did not survive the freeze, whe...

A morphometric and molecular characterization of Brevipalpus sp. close to the group cryptic species within californicus s.l. bearing only one solenidion on tarsus II was conducted, its capacity acquire inoculate citrus leprosis virus C (CiLV-C) orchid fleck virus, strain-citrus (OFV-citrus), determined. For study, photomicrographs mites from two colonies kept in laboratory were taken: derived a...

Fruit flies (Diptera: Tephritidae) represent a threat to fruit growing worldwide, mainly the citrus culture, however, biological studies show that fruit flies are not perfectly adapted to this host. This study investigated oviposition of Anastrepha fraterculus (Wiedemann, 1830) and Ceratitis capitata (Wiedemann, 1824) and its relation with the pericarp of citrus fruits. We evaluated the relatio...

This paper reviews the pharmacological properties of Mediterranean-grown citrus species (Citrus L., Rutaceae), including citron (Citrus medica L.), lime (Citrus xauantiifolia [Christm.] Swingle), lemon (Citrus xlimon [L.] Osbeck), bitter orange (Citrus xaurantium L.) and pomelo (Citrus maxima [Burm.] Merr.), as referred to in ancient, medieval and 16th century sources. The virtues of the specie...

gummy bark disease of sweet orange (citrus sinensis) trees has been reported from a few citrus growing regions of the world. the disease symptoms consist of mild to severe stem pitting and brown gummy flecks in the bark of sweet orange trees on sour orange ( c. aurantium) rootstock, being conspicuous several centimeter above the bud :union: on the trunk. the pits were usually impregnated with b...

the field experiment was conducted to study the effect of soil moisture tension and potassium on growth and quantitative and qualitative characteristics of thomson navel orange on citrumelo rootstock in kotra citrus research station in ten years (1998-2009). the experiment was designed for four replications in randomized complete blocks with factorial treatment structure. the factors consisted ...