J
John E. Preece
Researcher at National Clonal Germplasm Repository
Publications - 138
Citations - 3452
John E. Preece is an academic researcher from National Clonal Germplasm Repository. The author has contributed to research in topics: Shoot & Somatic embryogenesis. The author has an hindex of 23, co-authored 135 publications receiving 3161 citations. Previous affiliations of John E. Preece include Agricultural Research Service & Southern Illinois University Carbondale.
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Journal ArticleDOI
Thidiazuron: a potent cytokinin for woody plant tissue culture
Carl A. Huetteman,John E. Preece +1 more
TL;DR: Thidizuron (TDZ) is among the most active cytokinin-like substances for woody plant tissue culture and facilitates efficient micropropagation of many recalcitrant woody species.
Book ChapterDOI
Acclimatization of micropropagated plants to the greenhouse and field
John E. Preece,E. G. Sutter +1 more
TL;DR: Most species grown in vitro require an acclimatization process in order to insure that sufficient numbers of plants survive and grow vigorously when transferred to soil.
Journal ArticleDOI
Micro- and Cutting Propagation of Silver Maple. I. Results with Adult and Juvenile Propagules
TL;DR: Clonal micropropagation studies with silver maple included experiments with var- ious shoot types, cytokinins, and stock plant maturation levels, which led to successful explant estab- lishment, axillary shoot proliferation, rooting of microshoots, and establishment of plantlets in the greenhouse.
Journal ArticleDOI
Plant regeneration from leaf explants of Rhododendron ‘P.J.M. Hybrids’
John E. Preece,Miles R Imel +1 more
TL;DR: Pre-culture of leaves on a pre-conditioning medium containing 10 μM indolebutyric acid (IBA) and 50 μM isopentenyladenine (2iP) for 2 weeks before transfer to shoot multiplication medium increased explant survival to greater than 90% as compared with 0–50% when a pre -conditioning treatment was not used.
Journal ArticleDOI
Genetic Diversity Analysis of Cultivated and Wild Grapevine (Vitis Vinifera L.) Accessions Around the Mediterranean Basin and Central Asia
Summaira Riaz,Gabriella De Lorenzis,Dianne Velasco,Anne Koehmstedt,David Maghradze,Z. Bobokashvili,M. Musayev,Goran Zdunić,Valérie Laucou,M. Andrew Walker,Osvaldo Failla,John E. Preece,Mallikarjuna K. Aradhya,Rosa Arroyo-García +13 more
TL;DR: The analysis of genetic relationships among the tested genotypes provided evidence of genetic relationship between wild and cultivated accessions in the Mediterranean basin and Central Asia, and indicated that grapes with mixed ancestry occur in the regions where wild grapevines were domesticated.