This study aimed to characterize the chemical composition of leaf essential oil (EO) mandarin and tangor trees obtained by steam distillation hydrodistillation. Leaf samples were collected during pruning period from seven citrus cultivars in a property located Pareci Novo, Rio Grande do Sul state, South Brazil. The leaves underwent hydrodistillation distillation, EO was analyzed GC-MS GC-FID. I...

Abstract Purpose To investigate whether soil clay content, cultivar and seasonal variation have any effect on CO 2 emission rates leaf assimilation in a drip-irrigated commercial Citrus sinensis orchard. Methods The study was carried out the field as randomised complete block design × factorial consisting of two types citrus cultivars orchards with 2-week interval measurements gas exchanges for...

A generalized concept in the Citrus genus is that highly polyembryonic varieties produce only a small number of hybrids. Small zygotic embryos congregate primarily near micropyle, while nucellar organize or away from micropyle. In present study, authors determined seeds, per seed, and largest embryo (LE) position five citrus cultivars: C35 citrange, Volkamer lemon, Amblycarpa mandarin, Minneola...

in recent years, anthracnose disease of citrus has caused and contiunes to cause heavy losses to some citrus commercial tree varieties in mazandaran province. this disease is deeply spread out in the citrus orchards of the province. in order to isolate and identify the causal agent or agents of the disease, random sampling was done from infected trees during 2004-2005. in lab, samples were cult...

Citrus fruit tree has great commercial importance with mandarin (Citrus reticulata) as the second most important citrus crop and includes a wide range of true hybrid cultivars; however, there is lack studies about characterization evaluation germplasm for Physico-chemical morphological traits. A study on varietal selection been underway at National Research Programme since 2005-06. Evaluation s...

Pathogens interaction with a host plant starts a set of immune responses that result in complex changes in gene expression and plant physiology. Light is an important modulator of plant defense response and recent studies have evidenced the novel influence of this environmental stimulus in the virulence of several bacterial pathogens. Xanthomonas citri subsp. citri is the bacterium responsible ...