The seeds of Cucurbita maxima, C. moschata and C. pepo present an excellent potential for human nourishment since they are a source of proteins (1) and minerals. Their lack of use is due to the hardness of the hull and lack of knowledge regarding the existence of hull-less seeds of C. pepo and C. maxima. […]
Squash & Pumpkin Reports
An Austrian Cucumber Mosaic Virus Isolate is Causing Severe Symptoms on Resistant Cucurbita pepo Cultigens
In 2005, we discovered some plants of a zucchini yellow mosaic virus (ZYMV)-tolerant oilpumpkin breeding line (Cucurbita pepo), severely affected by a virus. Our first assumption was that ZYMV might have overcome the resistance, but ELISA tests revealed that most likely cucumber mosaic virus (CMV) caused the symptoms, although ZYMV was detected in very low […]
Confirmation of a Dominant Hard Rind (Hr) Locus in a Cucurbita argyrosperma ssp. sororia x C. moschata Cross
One of the traits that often characterize fruits of non-domesticated Cucurbita is lignified (hard) rinds. Fruit of domesticated Cucurbita can have either lignified or nonlignified (soft) rinds. Schaffer et al. (6) noted that many summer squash cultivars of C. pepo, which are usually consumed within 10 days post-anthesis, have lignified rinds at maturity. On the […]
Performance of Zucchini Yellow Mosaic Virus Resistant ‘Golden Delicious’ Type Pumpkin Hybrids
The Cucurbita maxima ‘Golden Delicious’ (GD) type is the preferred pumpkin grown for processing and culinary seed production in the Willamette Valley of Oregon. Processors value their large size (five – 10 kg), thin, red-orange skin (which will not blemish processed product) and high quality flesh (7% soluble solids and 10% total solids). Culinary seed […]
Breeding Classic Cucurbita maxima Buttercup Squash for Increased Genetic Diversity
The unique ability for cucurbits, naturally outcrossers, to withstand inbreeding has allowed pedigree line breeding techniques to become the industry standard for development of new squash varieties, buttercup included (1; 7). Self-fertilization is preferred because it ensures rapid homozygosity and the fixation of desirable characteristics within the variety (1). A method of recurrent selection breeding […]
2008 to 2009 Squash and Pumpkin Reports
Squash and Pumpkin (Cucurbita spp.) Breeding Classic Cucurbita maxima Buttercup Squash for Increased Genetic Diversity Nicki Dallmann & Michael Dallmann CGC 31-32:17-18 (2008-2009) Performance of Zucchini Yellow Mosaic Virus Resistant ‘Golden Delicious’ Type Pumpkin Hybrids Jim Myers, Deborah Kean & Rebecca Brown CGC 31-32:19-24 (2008-2009) Confirmation of a Dominant Hard Rind (Hr) Locus in a […]
2007 Squash and Pumpkin Reports
Cucurbit Genetics Cooperative Report No. 30 Squash and Pumpkin (Cucurbita spp.) Diversity within Cucurbita maxima and C. moschata for resistance to RNA viruses Menahem Edelstein, Harry S. Paris, Amit Gal-On, Giora Barkan, Diana Leibman, and Rivka Hadas (Israel) CGC 30:31-32 (2007) New Plant Variety Protection (PVP) Forms for Pumpkin/Squash/Gourd Harry S. Paris, Janice Strachan, Mark […]
2005 to 2006 Squash and Pumpkin
Report No. 28-29 Squash and Pumpkin (Cucurbita spp.) Systematic Studies on the Family Cucurbitaceae of Eastern Bihar, India M.A. Ali and A.K. Pandey (India) CGC 28-29:66-69 (2005-2006) Cucumis SSR Markers Applied to the Study of Genetic Diversity in the Cucurbita Genus B. Pico, A. Sifres, C. Esteras, and F. Nuez (Spain) CGC 28-29:70-72 (2005-2006) Inheritance of Yellow Seedling Lethal in Cucurbita maxima Duch. […]
2004 Squash and Pumpkin Report
Report No. 27 Squash and Pumpkin (Cucurbita spp.) Morphological Traits of Possible Use as Species Markers in Cucurbita moschata and C. argryosperma L. Wessel-Beaver, J.S. Gonzales, and H.C. Marrero (Puerto Rico) CGC 27:54-56 (2004) Enhanced Haploids Regeneration in Anther Culture of Summer Squash (Cucurbita pepo L.) M.F. Mohamed and E.F.S. Refaei (Egypt) CGC 27:57-60 (2004) Development and Characterization of […]
2003 Squash and Pumpkin Report
Report No. 26 Squash and Pumpkin (Cucurbita spp.) Two Oriental Squash Varieties Resistant to Powdery Mildew Bred through Interspecific Crosses M.C. Cho, Y.H. Om, Y.C. Huh, I.G. Mok and H.G. Park (Korea) CGC 26:40-41 (2003) Seed transmission of Zucchini Yellow Mosaic Virus on Cucurbita pepo conv. citrullinina var. styriaca (Oilseed Pumpkin) I. Tóbiás, L. Sári and H. Kuhlmann (Hungary and Germany) CGC […]