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Mark W. Farnham and Michael A. Grusak

(s) can adequately address any question of possible changes that may have occurred over time related to the release of new cultivars. When such direct comparisons are made, there are a number of issues that should be considered when interpreting results

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Laurie Hodges

developed, cuttings were taken and sent away to be tissue cultured. The new cultivar was named ‘Goldheart’ and was introduced to the trade in 1997 (N. Pope, personal communication). In 2009, a fourth cultivar of bleeding heart named Valentine was released to

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Jennifer Drew, Chengyan Yue, Neil O. Anderson, and Philip G. Pardey

plants through research and development (R&D) investment and increases of new cultivars. Overall crops these studies showed the effects were weak to nonexistent with some finding significant effects on just a few crops such as increased breeding efforts

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Huating Dou and Fred G. Gmitter

increased demand has occurred primarily in specialty fruit, mainly mandarins. The Fresh Orange and Specialty Advisory Council, under the Florida Citrus Commission, is planning to release three new cultivars each year for fresh fruit production beginning in

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Hirotoshi Tsuda, Hisato Kunitake, Mai Yamasaki, Haruki Komatsu, and Katsunori Yoshioka

that of ‘Spartan’. The hybrids of the present research are expected to become breeding materials for new cultivars with higher sugar content and more abundant functional components than those of existing blueberry cultivars. In addition to the overall

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R. Karina Gallardo, Qi Zhang, Michael Dossett, James J. Polashock, Cesar Rodriguez-Saona, Nicholi Vorsa, Patrick P. Edger, Hamid Ashrafi, Ebrahiem Babiker, Chad E. Finn, and Massimo Iorizzo

processed ( Brazelton et al., 2017 ). Development of new cultivars has played and will continue to play a major role in the growth of the blueberry market in North America and worldwide. In the last two decades, breeding programs have developed improved

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Fanjuan Meng, Mu Peng, and Fachun Guan

Fruit Research Institute of the Chinese Academy of Agricultural Sciences, which was founded in 1960, is a national professional research organization of deciduous fruit that studies peach germplasms and develops new cultivars. Thus, we should enrich the

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Yulia A. Kuzovkina

founded worldwide that continuously release new clones with improved characteristics ( Stanton et al., 2014 ). As new cultivars enter into commercial production, clear and standardized records of the described genotypes are becoming increasingly important

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Lorenzo León, Raúl de la Rosa, Diego Barranco, and Luis Rallo

in this work seems to indicate that the selection of seedlings for a short juvenile period has also provided a shorter unproductive period of the subsequent new cultivars, as previously suggested ( Santos-Antunes et al., 2005 ). The relationship

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Stanisław Pluta, Edward Żurawicz, Marcin Studnicki, and Wiesław Mądry

gene pool of the parental genotypes involved in the mating design ( Griffing, 1956a , 1956b ). The GCA of the parents for a trait describes their overall use for developing new cultivars with respect to the trait. The most valuable hybrid progeny in