Biochemical Properties of Superior Persian Walnut Genotypes Originated from Southwest of Iran
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJHST-8-1_002
تاریخ نمایه سازی: 1 اردیبهشت 1400
Abstract:
Evaluation of genetic diversity and identification of superior genotypes is a fundamental stepin walnut breeding programs. In addition, information on biochemical properties of superiorgenotypes can help walnut breeders to release commercial varieties with high kernel quality.To gain more information on superior genotypes, a walnut population located in southwest ofIran was morphologically evaluated from 2010 to 2016. Based on important walnut breedingtraits, nine superior walnut genotypes were selected from a total of 612 tested genotypes.These genotypes were characterized by high yield, moderate to late-leafing, lateral bearing,thin shell and large nuts with light and extra-light kernel color. Biochemical traits of theselected superior genotypes were evaluated for two consecutive years (2017 and 2018) and ahigh variation was observed among genotypes in respect of oil, protein and total phenolcontents. Oil, protein and phenol contents of walnut kernels ranged between 57.9 to 69.6%,13.0 to18.1% and 46.6 to 61.5 mg GAE g-1, respectively. Polyunsaturated fatty acids (PUFA),monounsaturated fatty acids (MUFA) and saturated fatty acids (SFA) constituted on average63.8%, 26.7% and 9.7% of fatty acid content, respectively. There was a negative correlationbetween some phenological traits and oil and protein contents. Lateral bearing genotypes haddarker kernels with higher amounts of saturated fatty acids. In general, the selected walnutgenotypes not only are superior in various aspects of phenotypic characteristics, but also havehigh kernel quality and nutritional value which can be used as a source of desirable genes forfuture walnut breeding programs.
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Authors
Saadat Sarikhani
Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
Kourosh Vahdati
Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
Wilco Ligterink
Wageningen Seed Lab, Laboratory of Plant Physiology, Wageningen University (WU), Wageningen, The Netherlands
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