Effects of temperature and packaging atmosphere on total antioxidants and colour of walnut (Juglans regia L.) kernels during storage
The effects of cultivar and storage conditions (time; temperature and O2 availability) on total phenolics (TP); total antioxidant capacity (TAC) and colour in walnut kernels of three cultivars (Chandler; Hartley and Ioli) were investigated. Harvested walnuts were dried at 36 °C for 24 h; packaged in polyethylene||polyamide pouches flushed with dry air or N2 or […]
Interactions between vegetative and generative growth and between crop generations in fig tree (Ficus carica L.)
Yield in fruit trees strongly depends on the balance between vegetative growth and fruiting. This balance is particularly complex in fig tree (Ficus carica L.); in which two generations of figs (Breba and Main crop) develop along an annual shoot and compete with two consecutive growth seasons. For better understanding the interaction between vegetative growth […]
Effect of pollination intensity; frequency and pollen source on fig (Ficus carica L.) productivity and fruit quality
Yield and fruit quality in fig (Ficus carica L.) are highly dependent on cultural practices especially caprification (pollination). However; this technique remains not well controlled in Tunisia. This study was conducted during two successive years; 2009 and 2010; to investigate different pollination conditions; i.e. number of caprifigs and repetitions of caprification on fruiting of two […]
Pecan production increased by larger vegetation-free area surrounding the tree
Vegetation control with herbicides is a common practice in pecan [Carya illinoinensis (Wangenh.) K. Koch] orchards that benefits both non-bearing and bearing trees. However; the appropriate size for the vegetation-free area surrounding bearing trees had not been resolved. Vegetation-free circles centered on the Tree 0; 0.9; 1.8; 3.7; and 7.3 m in diameter were established […]
Effect of harvesting time on nut quality of pistachio (Pistacia vera L.) cultivars
The appropriate time of harvest is one of the most important factors affecting the quality of pistachio. Cultivars ÂAhmad-AghaiiÂ; ÂKaleh-GhoochiÂ; ÂOhadi and ÂBadami-Zarand were evaluated for qualitative indices of nut over a period of four years from 2001 to 2004. Nut samples were collected during eight successive weeks from 23 August to 11 October. Splitting; […]
Phytochemical and antioxidant properties of selected fig (Ficus carica L.) accessions from the eastern Mediterranean region of Turkey.
Abstract: Fig has been a typical fruit component of the health-promoting Mediterranean diet for a very long time. Phytochemical characters and antioxidant capacity of green-; yellow-; brown-; purple-; and black-fruited fig (Ficus carica L.) accessions were investigated. In this study; total phenolics (TP); total anthocyanins (TA); fructose (FRUC); glucose (GLUC); sucrose (SUC); and variables (such […]
Physicochemical changes in Mazafati date fruits incubated in hot acetic acid for accelerated ripening to prevent diseases and decay
A method was developed and optimized for the accelerated ripening of date fruits of cultivar ÂMazafati to prevent diseases and decay. The date fruits were incubated in hot acetic acid solution 0.5% at 40 + 1 °C for 72 h. During the process some physicochemical changes in the fruits were studied and were found to […]
Improving fruit quality; nutritional value and yield of Zaghloul dates by the application of organic and/or mineral fertilizers
A field study was carried out during the years 2007 and 2008 on 30-year old Zaghloul cultivar growing in clay soil. Mineral fertilization sources: N; ammonium nitrate or NPK; ammonium nitrate + calcium superphosphate + potassium sulphate; and organic sources: chicken manure (CM); cow dung (CD) and composted domestic refuse (CDR) were applied either alone […]
Characteristics of some almond kernel and oils.
The proximate properties; the fatty acid and mineral contents of different almond kernel varieties were determined. The crude protein contents of kernels ranged between 12.7% (guara) and 16.3% (cristomorto). The oil yields from these kernels were established between 48.8% (cristomorto) and 55.7% (ferragnes). The acidity value of oils were found between 1.389 and 3.559%. In […]
Effect of increasing climatic water deficit on some leaf and stomatal parameters of wild and cultivated almonds under Mediterranean conditions.
The prevailing environmental conditions; temperature in particular; drive seasonal changes both in leaf development and stomatal characteristics. In order to ascertain the effect of increases in climatic water deficit on some leaf and stomatal parameters under field conditions; a study was carried out on two sets of leaves (spring and summer) on a large sample […]