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Mariem Bouhadida, Juan P. Martín, Gennady Eremin, Jorge Pinochet, María Á. Moreno, and Yolanda Gogorcena

). The basic chromosome number of Prunus is x = 8. Almond [ P. dulcis D.A. Webb (formerly P. amygdalus Batsch)], peach [ P. persica (L.) Batsch], apricot ( P. armeniaca L.), and sweet cherry ( P. avium L.) are diploids with 2 n = 2 x = 16

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Ossama Kodad, José M. Alonso, María T. Espiau, Gloria Estopañán, Teresa Juan, and Rafel Socias i Company

germplasm for addressing future challenges in almond breeding. As a consequence, these genotypes are preserved, characterized in several almond collections and incorporated into advanced breeding programs ( Kester et al., 1990 ). One of the most important

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J. Steven Brown, Raymond J. Schnell, Tomás Ayala-Silva, J. Michael Moore, Cecile L. Tondo, and Michael C. Winterstein

. The mango, like many perennial, cloned fruit tree species, has been considered to be a difficult plant species to improve by breeding as a result of several intrinsic biological factors ( Iyer and Dinesh, 1997 ; Iyer and Schnell, 2009 ): 1) a high

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David E. Zaurov, Sasha W. Eisenman, Timothy Ford, Sergei Khokhlov, Sovetbek Kenjebaev, Kaiyrkul T. Shalpykov, and C. Reed Funk

are unique to this region. To promote better use, management, and preservation of these important resources, dissemination of this information is critical. Recent and ongoing collection and breeding activities are also discussed. By accessing and using

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Qijing Zhang and Dajun Gu

with large fruit size of P. salicina and broaden the genetic base for further breeding within this genus. The objective of this research was to characterize the morphology of the hybrid and both parents and to validate the hybridity using molecular

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Marek Szymajda and Edward Żurawicz

commercial scale throughout the country. In 1991, the Research Institute of Pomology and Floriculture launched a new program of breeding stone fruit trees (plum, sour cherry, peach, and apricot), the aim of which has been to derive new cultivars with

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Noémi Makovics-Zsohár, Magdolna Tóth, Dezső Surányi, Szilvia Kovács, Attila Hegedűs, and Júlia Halász

from breeding programs started in the second half of the 20th century, and double crossing, pyramidic crossing, mutagenesis, and several laboratory assays were used in such programs compared with traditional breeding ( Hartman and Neumüller, 2009 ). The

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Shirin Shahkoomahally, Jose X. Chaparro, Thomas G. Beckman, and Ali Sarkhosh

, T. Univer, N. Uselis, N. Lanauskas, J. Buskienė, L. 2012 Baltic fruit rootstock studies: Evaluation of 12 apple rootstocks in North-East Europe Hort. Sci. 39 1 7 Leece, D. den Ende, B. 1975 Diagnostic leaf analysis for stone fruit. 6. Apricot Aust. J

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Omar Carrillo-Mendoza, José X. Chaparro, and Jeffrey Williamson

bearing habit was similar to peach but with some prevalence of fruiting spurs ( Gradziel, 2002 ). For apricot there is an influence from the genotype in sylleptic branching for three locations. This influence was greater when considering cumulative effects

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James W. Olmstead, Amy F. Iezzoni, and Matthew D. Whiting

attributed to differences in mesocarp cell number alone. Similarly, fruit weight differences between japanese apricot ( Prunus mume Sieb. et Zucc.) cultivars were correlated with flesh cell number ( Yamaguchi et al., 2004a ). However, Yamaguchi et al. (2002