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Donald R. Davis

et al., 2004 ). Ca and Mg in broccoli are the first examples known to me of a newly recognized kind of dilution effect, a genetic dilution effect, a term introduced by Davis (2005) after personal communication with Wesley M. Jarrell. Unlike

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Donald Livingstone III, Barbie Freeman, Cecile L. Tondo, Kathleen A. Cariaga, Nora H. Oleas, Alan W. Meerow, Raymond J. Schnell, and David N. Kuhn

of samples or can serve as a guide for manual dilution. Genetic marker analysis. Genetic marker analysis was performed using primers and polymerase chain reaction (PCR) conditions as previously described for Phaedranassa ( Oleas et al., 2005

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Benard Yada, Phinehas Tukamuhabwa, Bramwell Wanjala, Dong-Jin Kim, Robert A. Skilton, Agnes Alajo, and Robert O.M. Mwanga

remedy to the limitation of dosage effect detection in SSRs as previously proposed by Buteler et al. (1999) . Genetic distances among sweetpotato genotypes. The frequency of pairwise genetic distance coefficients for the SSR analysis is shown in

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Paul W. Bosland, Danise Coon, and Gregory Reeves

Chile peppers ( Capsicum sp.) are cultivated worldwide and are often prized for their heat ( Bosland and Votava, 2012 ). A widely used heat measurement for chile peppers is the SHU ( Scoville, 1912 ). This measurement is the highest dilution of a

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Carlos Calderón-Vázquez, Mary L. Durbin, Vanessa E.T.M. Ashworth, Livia Tommasini, Kapua K.T. Meyer, and Michael T. Clegg

took place at least three times, yielding the three distinct races of cultivated avocado that are used today (see Ashworth et al., 2011 ). This history of separate domestications results in a wide base of genetic variation ( Chen et al., 2008 , 2009

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Philip J. White, John E. Bradshaw, M. Finlay, B. Dale, Gavin Ramsay, John P. Hammond, and Martin R. Broadley

hypothesized that increasing yields has resulted in decreased concentrations of mineral elements in produce because of a “dilution effect” caused by plant growth rates exceeding the ability of plants to acquire these elements ( Jarrell and Beverly, 1981 ) that

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Paul W. Bosland and Jit B. Baral

significant effect on pungency of chiles ( Capsicum annuum L.) HortScience 32 1992 International Plant Genetic Resources Institute (IPGRI) 1995 Descriptors for Capsicum Intl. Plant Genetic Resources Inst Rome Mathur

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Karen Harris-Shultz, Melanie Harrison, Phillip A. Wadl, Robert N. Trigiano, and Timothy Rinehart

native plants have successfully targeted consumers to buy ornamental grasses. Few genetic or genomic tools are available for little bluestem, although non-sequence-specific random amplified polymorphic DNA [RAPD ( Huff et al., 1998 )] and amplified

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Howard F. Harrison Jr., Chandrasekar S. Kousik, and Amnon Levi

a portable cement mixer for 5 min. Clomazone was incorporated into the potting medium by adding the appropriate volume of the commercial formulation (Command 3 ME; FMC Corp., Philadelphia, PA) to 500 mL of water, spraying the dilution directly onto

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Charles E. Christianson, Stephen S. Jones, and Lindsey J. du Toit

crop seasons overlap by 4 to 8 weeks in the Pacific Northwest, resulting in a “green bridge” effect that facilitates movement of pathogens and pests among crops. This has contributed to the endemic presence of Xhc in this primary carrot seed