the use of chlorophyll fluorescence (chlf) technique was evaluated on nondestructive measurement of sugar content during fruit development. multivariate models, principal component analysis (pca), and partial least-squares regression (plsr), were developed for the classification and prediction of fructose, glucose, and sucrose in fig fruits. the results of this study showed a significant correl...

Two new Baker’s yeast strains obtained from hybridization of commercial baker’s yeast parent strains, Saccharomyces cerevisiae IFRPD 6080 and IFRPD 6081 with Japanese mating strains were investigated. The hybrids, IFRPD 6171 from parent strain 6080 and IFRPD 6173 from parent strain 6081, were evaluated for their characteristics, namely growth, total carbohydrate and trehalose contents, sugar fe...

NIR spectroscopy was used as a non-destructive technique for the assessment of chemical changes in the main internal quality properties of wine grapes (Vitis vinifera L.) during on-vine ripening and at harvest. A total of 363 samples from 25 white and red grape varieties were used to construct quality-prediction models based on reference data and on NIR spectral data obtained using a commercial...

The primary obstacle to producing renewable fuels from lignocellulosic biomass is a plant's recalcitrance to releasing sugars bound in the cell wall. From a sample set of wood cores representing 1,100 individual undomesticated Populus trichocarpa trees, 47 extreme phenotypes were selected across measured lignin content and ratio of syringyl and guaiacyl units (S/G ratio). This subset was tested...

While the majority of the highest quality wine-producing regions in Western and Central Europe have benefitted from an increase in quality ratings due to climate change, traditional Franconian wine is in danger of losing its unique characteristics and its traditional spatial distribution. A long-term (1949 to 2010) study was made of reference vineyard observations in Lower Franconia, Germany. T...

for determining sugar beet water requirements, this work was conducted at the  agricultural research station of torog in mashhad for 3 years. crop water requirement was measured by a drainage type lysimeter with dimension of 2*2*1 m. in order to reduce side effects, an area about 1600 m2 around the lysimeter (as a guard) was cultivated with sugar beet. soil water content was measured by tensiom...