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Fatemeh Khodadadi, Masoud Tohidfar, Mehdi Mohayeji, Abhaya M. Dandekar, Charles A. Leslie, Daniel A. Kluepfel, Timothy Butterfield and Kourosh Vahdati

. oxysporum Fo47 Physiol. Mol. Plant Pathol. 73 9 15 Aleta, N. Ninot, A. Moragrega, C. Liorente, I. Montesinos, E. 2001 Blight sensitivity of Spanish selections of Juglans regia Acta Hort. 544 353 362 Alexander, D. Goodman, R.M. Gut-Rella, M. Glascock, C

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Mohammad Sadat-Hosseini, Kourosh Vahdati and Charles A. Leslie

modification. Materials and Methods Source of somatic embryos and culture conditions. SEs of Persian walnut ( Juglans regia L.) were regenerated from immature walnut catkins of the cultivar Chandler ( Mendum and McGranahan, 1995 ). This embryogenic line had

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Ying Gao, Hao Liu, Ningguang Dong and Dong Pei

vitro poplar Chinese Bul. Bot. 46 324 330 Ferhad, M. Fikri, B. Peyami, B. 2010 Endogenous hormone levels in bearing and non-bearing shoots of walnut ( Juglans regia L.) and their mutual relationships Acta Physiol. Plant. 32 53 57 Gälweiler, L. Guan, C

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Gilbert F. Simmons, Joseph L. Smilanick, Nuria Denis-Arrue, Dennis A Margosan and Shama John

A new vapor phase hydrogen peroxide (VPHP) technology that uses relatively dry hydrogen peroxide pulses is a promising method for the disinfection of surface-borne bacteria, yeasts, and molds on walnut nutmeats. The number of colony forming units per gram (cfu/g) on untreated nutmeats was compared to those VPHP treated. Three culture media; dichloran rose bengal chloramphenicol agar base (DRBC, Oxoid), aerobic plate count agar (APC, Oxoid), and potato dextrose agar (PDA, Sigma), were utilized to evaluate cfu/g. Similar numbers of cfu/g of product were observed on APC and PDA. The more selective DRBC had lower cfu/g. Microorganisms washed from untreated walnut nutmeats purchased at retail outlets ranged between 17,000-29,000 cfu/g depending upon the culture medium used. The number of cfu/lg on nutmeats after VPHP treatments was reduced to 500-1400, a 95% reduction. VPHP may offer an alternative to propylene oxide fumigation. The moisture content of nutmeats was not significantly altered by VPHP. The Food and Drug Administration lists hydrogen peroxide as a “generally recognized as safe substance” (GRAS). Hydrogen peroxide is already produced in a food grade for aseptic packaging.

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Kathleen M. Kelley Anderson and Mitchell King

The effect of kaolin (Surround™) on walnut quality parameters, including edible yield, reflected light index, insect damage, off grade, price per pound, and the incidence and severity of sunburn, were evaluated over a 4-year period in `Vina' and `Chandler' walnut orchards. Results indicate that applications of kaolin significantly improved edible yield, reflected light index, price per pound, and the incidence and severity of sunburn in most orchards in most years. Improvements in these parameters were more consistent with the `Vina' cultivar. Off-grade was not significantly reduced by the use of kaolin. Codling moth damage levels were too low to detect in all orchards in all years.

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Ying Gao, Hao Liu and Dong Pei

antibody to carboxyl-linked indoleacetic acid Plant Physiol. 96 1076 1078 Li, Y.T. Zhao, Y.G. Yang, K.Q. Fang, Y.Y. Hou, L.Q. 2011 Studies on floral organ development process of precocious walnut ( juglans regia ) by anatomia Acta Hort. Sinica 38 434 440

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Kendra Baumgartner, Phillip Fujiyoshi, Greg T. Browne, Chuck Leslie and Daniel A. Kluepfel

Armillaria root disease affects orchards in all Juglans regia (Persian walnut)-growing regions of California ( Gardner and Raabe, 1963 ). The causal agent is Armillaria mellea (Basidiomycota, Physalacriaceae), which attacks walnut and other

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Ningguang Dong, Jianxun Qi, Yuanfa Li, Yonghao Chen and Yanbin Hao

. Kafkas, S. 2016 Novel 307 polymorphic SSR markers from BAC-end sequences in walnut ( Juglans regia L.): Effects of motif types and repeat lengths on polymorphism and genetic diversity Sci. Hort. 213 1 4 Jaleel, C.A. Riadh, K. Gopi, R. Manivannan, P. Inès

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Matthew A. Escobar, Andrew Shilling, Pine Higgins, Sandra L. Uratsu and Abhaya M. Dandekar

of Juglans regia L J. Agr. Food Chem. 53 6390 6396 Constabel, C.P. Ryan, C.A. 1998 A survey of wound- and methyl jasmonate-induced leaf polyphenol oxidase in crop plants Phytochemistry 47 507 511

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Shugang Zhao, Jiamin Niu, Linying Yun, Kai Liu, Shuang Wang, Jing Wen, Hongxia Wang and ZhiHua Zhang

Walnut ( Juglans regia L.) is an important crop that is cultivated extensively worldwide for nut production. China is one of the major producers of this crop. Traditional Chinese medicine purports that the nutmeat of walnut is nutrient-dense and