Granulation (also called crystallization or section drying) is a physiological disorder in citrus that results in reduced extractable juice and sometimes vesicle shriveling. While segments appear dry, the disorder is not caused by drying, but by gel formation within the vesicles. Though many citrus varieties may develop granulation (i.e., ‘Valencia’ orange, tangerines, and grapefruit), it was a...

Boron (B) deficiency has seriously negative effect on citrus production. Carrizo citrange (CC) has been reported as a B-deficiency tolerant rootstock. However, the molecular mechanism of its B-deficiency tolerance remained not well-explored. To understand the molecular basis of citrus rootstock to B-deficiency, suppression subtractive hybridization (SSH) and microarray approaches were combined ...

background and aims: citrus exocortis disease is naturally limited to citrus plants and causes a serious disease on sensitive rootstocks such as trifoliate orange. the aim of this study was to sample new variants of citrus exocortis viroid from fars trees with yellowing and suberization symptoms and comparison with other isolates of this viroid. materials and methods: a number of symptomatic or...

Investigations have demonstrated that ratio of sugars to organic acids affects the particular taste of citrus fruit and carotenoids are essential for prevent of the disease.  It seems that some rootstocks enhance the ripening of fruits and stimulatethe biosynthesis of sugars and carotenoids. The aim of this study was to evaluate the effect of rootstocks on sugars, organic acids andcarotenoids o...

Blood orange (Citrus sinensis L. Osbeck) is a rare commercial citrus fruit containing abundant anthocyanins and has numerous health benefits. rootstock determines the yield quality. This study evaluated effect of three most commonly used rootstocks on features, color index, physicochemical parameters, anthocyanin accumulation, biosynthetic gene expression, associated enzymes during development ...

Among the various abiotic stresses, drought is major factor limiting crop productivity worldwide. Citrus has been recognized as a fruit tree group of great importance to global agricultural sector since there are 140 citrus-producing countries The majority areas subjected dry and hot summer weather, limited availability water resources with parallel low-quality irrigation due increased salinity...

In micropropagation and in vitro conservation various nutrient media have been used for regeneration of citrus rootstocks. this respect, the present study was conducted to define, among three culture media, one common use (MS) two developed arboreal species (RMAN WPM), best formulation establishment, propagation vitro. Plantlets from 10 rootstocks grown were micropropagated conserved 18 months,...

The effects of shading in combination with salinity treatments were studied in citrus trees on two rootstocks with contrasting salt tolerance to determine if shading could reduce the negative effects of salinity stress. Well-nourished 2-year-old 'Valencia' orange trees grafted on Cleopatra mandarin (Cleo, relatively salt tolerant) or Carrizo citrange (Carr, relatively salt sensitive), were grow...

Background and Aims: Citrus exocortis disease is naturally limited to citrus plants and causes a serious disease on sensitive rootstocks such as trifoliate orange. The aim of this study was to sample new variants of citrus exocortis viroid from Fars trees with yellowing and suberization symptoms and comparison with other isolates of this viroid. Materials and Methods: A number of symptomat...

'Hongmian miyou' (Citrus grandis L. Osbeck) is mutated from 'Guanxi miyou', with a different spongy layer coloration. Trifoliate orange (Poncirus trifoliata) is widely used as rootstocks in 'Guanxi miyou' grafting, whereas 'Hongmian miyou' is incompatible with available trifoliate orange rootstocks. To explore the reasons for the etiolation of leaves of 'Hongmian miyou'/trifoliate orange, anato...