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Aneela Nijabat, Adam Bolton, Muhammad Mahmood-ur-Rehman, Adeel Ijaz Shah, Rameez Hussain, Naima Huma Naveed, Aamir Ali, and Philipp Simon

confirmed to be an important measure of heat tolerance to be used to identify, select, and screen for genetic variation in heat tolerance among and within carrot germplasm accessions and breeding stocks. This in turn suggests that, as in other crops

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María S. Alessandro and Claudio R. Galmarini

characteristic for carrot root and seed production, understanding the genetics of this trait is valuable for breeding programs. For example, introgression of genes between annual and biennial forms will broaden the genetic base of each group, allowing

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Phillip Joy, Rajasekaran Lada, Angus Ells, and Brian Williams

The individually quick frozen “baby” carrot industry is growing. Crack development during freezing (CDF) has recently become a quality issue. There is little scientific information available on the causes of CDF. Studies were initiated to determine genetic resistance for CDF and to identify crack-resistant varieties. Ten varieties and breeding lines (Columbia, HMX-0331, Sugarsnax, Sweet Bites, Tasty Peel, Top Cut, Trinity, XCR-0124, XCR-9650, and XCR-9840) were grown under the same field conditions, harvested identically, and processed. Samples were removed after a quick freeze tunnel and tested immediately for membrane stability using electrical conductivity (EC/g) and a membrane injury index. Percentage cracked, the length, width, and depth of cracks were also measured. Another set of samples were placed in freezer storage at –10 °C for 8 weeks and tested again for the same parameters. EC/g and membrane injury indexes showed significant interactions between variety and length of storage time. Crack length, width, and depth were significantly higher in XCR-9650 and XCR-9840, while Trinity had the smallest dimensions. Crack depths after week 8 in freezer storage were also significantly higher (0.30 cm) than those at week 0 (0.21 cm). Finally, percent cracked was also dependent on the variety and length of storage time. Trinity had the lowest percentage of cracked pieces (16%), whereas XCR-9650 (70%) had the highest percentage of visible cracking. Freezer storage time also played a role in CDF, since cracked percent significantly increased by 4% over the 8 weeks. Our results clearly reveal that there are differences in CDF among varieties. Among all, Trinity had the highest resistance to cracking, comparable to all the varieties except XCR-9650 and XCR-9840.

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Ramesh R. Sagili, Carolyn R. Breece, Rhonda Simmons, and John H. Borden

pheromone on the production of triploid watermelon. Proc. IXth EUCARPIA Mtg. Genetics and Breeding of Cucurbitaceae, Avignon, France, 21–24 May 2008. p. 385–389 Hart, J. Butler, M. 2004 Nutrient management guide: Hybrid seed carrot. Oregon State Univ. Ext

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Lucianne Braga Oliveira Vilarinho, Derly Jose Henriques da Silva, Ann Greene, Kara Denee Salazar, Cristiane Alves, Molly Eveleth, Ben Nichols, Sana Tehseen, Joseph Kalil Khoury Jr., Jodie V. Johnson, Steven A. Sargent, and Bala Rathinasabapathi

on the inheritance of fruit quality traits are needed to devise breeding programs to tailor specific traits. Research on fruit development in peppers can be expected to contribute to our understanding of fleshy fruit evolution in the Solanaceae and

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Gayle M. Volk and Christopher M. Richards

The role of wild germplasm in agricultural breeding is undergoing a profound change. The wide use of genomic-level characterization data has changed the way breeders can access and exploit the diversity within these accessions. Both low

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Silver Tumwegamire, Regina Kapinga, Patrick R. Rubaihayo, Don R. LaBonte, Wolfgang J. Grüneberg, Gabriela Burgos, Thomas zum Felde, Rosemary Carpio, Elke Pawelzik, and Robert O.M. Mwanga

, ≈1.6 to 9.4 ppm iron, and ≈2.7 to 18.9 ppm zinc in sweetpotato accessions from the South Pacific. Courtney (2007) observed up to ≈10 ppm iron and ≈6.4 ppm zinc in fresh storage roots for North American breeding material. The provitamin A and

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Philipp W. Simon

direct involvement in breeding, growing, storing, processing, and marketing the vegetable and fruit crops that are receiving this heightened level of interest and attention by nutritionists and health scientists. This situation provides an excellent

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Paul W. Bosland and Danise Coon

.), carrot ( Daucus carota L.), tomato ( Solanum lycopersicum L.), and bell peppers to New Mexican-type chile peppers ( Capsicum annuum L.). Colorful vegetables provide high value products to a growing market of upscale consumers, and in turn furnish

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Yeh-Jin Ahn and Na-Hyun Song

under various abiotic stresses, where DcHsp17.7 in carrot ( Daucus carota L.) was expressed under conditions of heat ( Kim and Ahn, 2009 ), cold ( Song and Ahn, 2010 ), and salinity ( Song and Ahn, 2011 ). Furthermore, the heterologous expression of