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Based on numerical analyses of macromorphological characters, scanning electron microscopy observation of leaves and lemma micromorphology, as well as field observations, Stipa pennata subsp. ceynowae was described here as a new taxon from Poland. It differs from the most similar S. pennata subsp. pennata and S. borysthenica mainly by its longer ligules of vegetative shoots. The affinities of t...

Electron paramagnetic resonance (EPR) is a well-known method for its sensitivity and accuracy in irradiated food detection. Our goal is to analyse the irradiated green coffee by EPR. Arabica beans and grounded coffee was electron beam irradiated up to 40 kGy. The EPR spectra and time dependence of signals were studied. Results were analysed with respect to find a possibility to identify irradia...

BACKGROUND Root lifespan is an important trait that determines plants' ability to acquire and conserve soil resources. There have been several studies investigating characteristics of root lifespan of both woody and herbaceous species. However, most of the studies have focused on non-clonal plants, and there have been little data on root lifespan for clonal plants that occur widely in temperate...

Plants adapt to environment by plastic growth which will be transferred to offspring through transgenerational effect. Performance and response of maternal and offspring plant will affect population dynamics and community composition. However, it is scarcely understood how maternal nutrient environment affect the performance and response of offspring through transgenerational effect. Here we st...

Infrared-photoacoustic spectroscopy (IR-PAS) and partial least squares (PLS) were tested as a rapid alternative to conventional methods evaluate the proportion of coffee defects in roasted ground coffees. Multiproduct multivariate calibration models obtained from spectra healthy beans Coffea canephora C. arabica (Arabica) blends composed defective Arabica different proportions. The blends, name...

Arabica coffee (Coffea arabica) is one of the most popular coffees among Acehnese, an ethnic group from Aceh, Indonesia. The amount consumed directly proportional to waste produced. Spent grounds are residue obtained during brewing process. can be utilized by converting them into active charcoal adsorbents. This study aimed produce activated spent arabica (SACG), utilize it as ingredient in liq...

The aqueous methanolic extract of the aerial parts of Fagonia arabica L. (family Zygophyllaceae) was successively fractionated using certain organic solvents. From the ethyl acetate fraction, two flavonoid glycosides were isolated and identified as kaempferol-7-O-rhamnoside and acacetin-7-O-rhamnoside. Four triterpenoidal glycosides were isolated from the butanolic layer. Their structures were ...

Considering the productive potential of arabica coffee in the Rio de Janeiro State and the shortage of breeding programs for this species in the state, this study aimed to evaluate the vegetative and productive characteristics of 25 arabica coffee genotypes to indicate 1 or more varieties for the northwest Rio de Janeiro region. The experiment was in Varre e Sai, RJ, Brazil, and plants were pla...