physical characteristics of agricultural products are the most needed parameters in the design of grading, handling, processing and packing systems. among physical characteristics; dimensions, mass, volume, projected area as well as surface area are the important factors in sizing systems. for an assessment of morphological and physical characters in walnut, four genotypes of sizable kernels, l...

Removing the green husk and drying walnut are one of the most important steps in post-harvest processing of walnut. Therefore, it is need to precisely identify a walnut’s shell. Physical and mechanical properties of shell in the four Persian walnut cultivars/genotypes were studied. This study investigated the mechanical properties of a walnut’s husk and calculated the required energy in the pro...

in this research the quality of walnut kernels under impact loading were studied. due to unavailability of specific varieties of walnut in iran, the tests were carried out on the available genotypes. three different genotypes from walnut orchards of azarshar region were selected and were collected in 2009. a drop test device was designed and constructed to perform the experiments. the impact te...

in order to evaluate the effects of sodium bicarbonate of irrigation water on the physiology and growth characteristics ofwalnut genotypes, a factorial experiment was performed with two factors including bicarbonate at 3 levels (0, 20 and 40 mm) and walnut genotypes (including local genotype a and wild genotypes b and c), based on completely random design. in this study, the effect of bicarbona...

most of walnut production in iran comes from seed originated trees with low quality and quantity as product. for breeding new cultivar(s), from 1983 selection of iranian walnut germplasm was started at seed and plant improvement institute and at the first phase 117 genotypes were collected. seedlings of these genotypes were planted in kamalshahr (karaj), torogh, kahriz and bastam horticultural ...

Evaluating genetic diversity in walnut (Juglans regia L.) populations is a rapid approach used by breeding programs to distinguish superior genotypes. The present study was conducted on the population of Hamedan Province, one richest and most genetically diverse regions Iran, during 2018–2019. After initial screening, 47 genotypes were selected for further evaluation pomological phenological tr...

Fatty Acids, α-tocopherol, β-caroten, minerals, and some pomological properties of walnut genotypes from four locations (Iğdır, Tuzluca, Karakoyunlu, Kağızman) of Aras Valley (Eastern Turkey) were examined. In this study, the differences among the genotypes were determined in terms of some fruit characteristics, oil and protein contents, fatty acid composition, selenium content, α-tocophero...

background and aims: walnuts are good sources of polyunsaturated fatty acids (pufa) and polyphenols which have beneficial effects such as proper growth, decreasing coronary heart disease, prevention of several kinds of cancer, anti-inflammatory and anti-mutagenic activities. in this study, the fatty acid content and antiradical activity of different walnut (juglans regia l.) genotypes grown in ...

although self incompatibility in walnut has not been reported, but the dicogamy limits self pollination of walnut cultivars. as the density of female flowers produced by the tree is low, if a high fruit set occurs, yield especially in terminal bearing cultivars will not be high. so breeding of a pollinizer cultivar with proper pollen shading period is highly necessary for increasing fruit produ...