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as chlorosis of leaves and growing tips. We first observed differential clomazone tolerance among Citrullus germplasm accessions when the herbicide was used for weed control in research plots at the U.S. Vegetable Laboratory. Hines and Wilson (1992

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, TifSport, and TifGrand) and 46 germplasm accessions of bermudagrass were tested in two sequential experimental trials in 2009 in a greenhouse at the University of Florida Turfgrass Envirotron in Gainesville, FL. The bermudagrass accessions with origin

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, National Plant Germplasm System (NPGS). It currently contains 178 accessions of P. dulcis , including some that exist as small populations (with subaccession numbers) collected or donated originally as seed. Almonds are believed to have originated in

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. Kiwifruit cultivars on the world market are mostly selected from wild germplasm, budsports, seedlings, and controlled crosses ( Chen et al., 2009 ; Ferguson and Huang, 2007 ). The kiwifruit industry in Cangxi of Sichuan Province began with a batch of mixed

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identify and classify 84 olive accessions obtained by a national exploration survey and introduced in the “Boughrara”-Sfax olive germplasm collection (South of Tunisia). The work has been carried out using eight microsatellite markers, seven of them

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-related germplasm to researchers worldwide. Among the over 500,000 accessions of plant germplasm managed through the NPGS, ≈1100 accessions are of cultivated onion. Specific challenges for germplasm repositories include minimizing genetic change during seed increase

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.e., counted neither for nor against identity). Phenotypes and fruit images. Fruit images for each accession identified as a duplicate were downloaded from the Germplasm Resources Information Network database (USDA, 2012). Images were qualitatively compared for

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). However, no report has been assessed for analyzing genetic diversity of Kongpo Monkshood germplasm using molecular markers. The present investigation addresses to estimate the genetic diversity and variability among and within Kongpo Monkshood collected

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Worldwide, there are cuurently more than 60 germplasm banks that contain tomato (Lycopersicon esculentum) collections ranging is size from a few dozen to several thousands of accessions. In the utilization of these genetic resources sampling from only one germplasm bank may result in limiting available genetic diversity, whereas sampling from several germplasm banks may result in unnecessary redundancy. The current lack of knowledge regarding the relative magnitudes of genetic diversity contained within different collections makes it difficult to develop a core collection that maximizes genetic diversity. Two large tomato collections are housed at the Asian Vegetable Research and Development Center (AVRDC), Sanhua, Taiwan, R.O.C., and the Centro Agronomico Tropical de Investigacion y Enseoanza (CATIE), Turrialba, Costa Rica. Ninety-six accessions from CATIE and 102 accessions from AVRDC were randomly sampled from each base collection. The total of 198 accessions were charcterized for 103 polymorphic RAPD molecular marker bands. The results indicated that the two germplam banks sampled different genetic diversity. In addition, the magnitude of genetic diversity was greater in the AVRDC collection compared to CATIE.

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, Ga., provided enthusiastic encouragement in the use of SSRs for the documentation of genetic diversity in germplasm collections and leadership in using SSRs in germplasm management. Gel electrophoresis was conducted in the labs of Doug Knipple, Dept

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