To determine the effects of salinity on relative growth rate (RGR), net assimilation rate on a leaf weight basis (NAR(w)), leaf weight ratio (LWR), and nutrient uptake and utilization of citrus, we grew four citrus rootstocks (sour orange, Cleopatra mandarin, Carrizo citrange and Citrus macrophylla) in nutrient solutions containing 0, 10, 20, 40 or 80 mM NaCl for 20, 40 or 60 days. For each ele...

A broad range of plant selections across the orange subfamily Aurantioideae were screened in solution and soil culture for their tolerance to low iron (Fe) stress. Young seedlings grown in soil were transferred to tubs of +Fe nutrient solution, which was later replaced after a brief period with a –Fe solution. Over several trials, ’20 white root tips were harvested periodically from the plants ...

Rootstock is widely used for the cultivation of citrus fruits because it brings resistance or tolerance to diseases environmental constrains and modulates fruit quality. Polyploidization a widespread improvement strategy in citrus. The objective was evaluate effect rootstock ploidy level on composition essential oils. Two trials were conducted, one displaying ‘Navelina’ orange grafted three roo...

Anaçlar, meyve verimi, kalitesi, abiyotik ve biyotik stres koşullarına karşı tolerans/direnç açısından turunçgil üreticiliğinde önemli bir rol oynamaktadır. Turunçgil üretimini sınırlandıran faktörlerden biri de Tylenchulus semipenetrans (Cobb, 1913) (Tylenchida, Tylenchulidae)’dır. Dayanıklı anaçlar, T. semipenetrans’ın mücadelesinde en iyi seçeneklerden birisi olmuştur. Bu çalışmada Adana ili...

Abstract Most commercial orchards of mandarins in Paraná grow ‘Ponkan’ trees predominantly grafted on ‘Rangpur’ lime. The limited genetic diversity citrus for both scion and rootstock may promote pest disease outbreaks. late season ‘Montenegrina’ willowleaf mandarin has high potential orchard diversification because its higher productivity better fruit quality. Therefore, this study assessed th...

Twenty Citrus cultivars grown in the Mediterranean climate were analysed at different stages of fruit maturity to determinate changes in organic acids, vitamin C and sugars. High-performance liquid chromatographic methods were used to identify and quantify of these compounds. The influences of variety, rootstocks and different stages of fruit maturity were observed. Generally, the vitamin C con...

A citrus spacing experiment begun in 1980 included 4 spacings, 2 varieties, and 2 rootstocks. Planting densities ranged from 150 to 360 trees per acre with spacings from 8 x 15 ft to 15 x 20 ft. 'Hamlin' and 'Valencia' Sweet orange (Citrus sinensis (L.) Osb.) trees were planted on Milam lemon ( C. jambhiri Lush) and Rusk citrange ( Poncirus trifoliata (l.) Raf. x C. sinensis) rootstocks. Trees ...