Cucurbit Genetics Cooperative Report 17:111-115 (article 33) 1994 X.P. Zhang, B.B. Rhodes and J.W. Adelberg Department of Horticulture, E-142 Poole Agricultural Center, Clemson University, Clemson, SC 29634-0375 Genetic transformation and somaclonal variation can be efficient alternatives to traditional breeding techniques for varietal improvement. However, an efficient regeneration system is essential for in vitro techniques to […]
Watermelon Reports
Screening for Resistance to Anthracnose (Race 2), Gummy Stem Blight, and Root Knot Nematode in Watermelon Germplasm
Cucurbit Genetics Cooperative Report 17:106-110 (article 32) 1994 G.E. Boylan, J.D. Norton and B.R. Abrahams Department of Horticulture, Alabama Agricultural Experiment Station, Auburn University, AL 36849 Over the past six years Auburn University has increased watermelon germplasm for the USDA-ARS. This germplasm has been routinely screened for resistance to gummy stem blight, root knot nematodes […]
Determination of Watermelon Ploidy Level using Flow Cytometry
Cucurbit Genetics Cooperative Report 17:102-105 (article 31) 1994 X.P. Zhang and B.N. Rhodes; J.F. Whitesides Horticulture Department, Clemson University, Clemson, SC 29634-0375, Department of Poultry Science, Clemson University, Clemson, SC 29634-0379 Several approaches have been used to identify ploidy level in watermelon, citrullus lanatus. Generally, ploidy levels are suggested by plant morphology, leaf shape/size, pollen […]
A New Morphological Marker in Watermelon, Juvenile Albino (ja)
Cucurbit Genetics Cooperative Report 17:101 (article 30) 1994 Xingping Zhang and Bill Rhodes Horticulture Department, Box 340375, Clemson University, Clemson, Sc 29634-0375 In 1992, a new morphological variant, which we name “juvenile albino” (ja) was observed in two populations – selfed ‘Dixilee’ and an F2 population of G17AB (ms ms) x ‘Dixilee’. To our knowledge, […]
1993 Watermelon Reports
CGC Report No. 16 Watermelon (Citrullus lanatus) Inheritance of resistance to races 0, 1 and 2 of Fusarium oxysporum f.sp. niveum in watermelon (Citrullus sp. PI 296341) Xingping Zhang and Bill Rhodes (USA) CGC 16:77-78 (1993) Male sterile, ms, in watermelon not linked to delayed green, dg and I-dg Xingping Zhang and Bill Rhodes (USA) CGC 16:79 (1993) Fertility shift in an in vitro regenerated male- […]
Protoplast Isolation and Culture of Watermelon Cotyledons
Cucurbit Genetics Cooperative Report 16:81-83 (article 31) 1993 Caiping Ma, X.P. Zhang, B.B. Rhodes and J.W. Adelberg Horticulture Dept., Box 340375, Clemson University, Clemson, SC 29634 Protoplast culture and subsequent regeneration could lead to more rapid genetic progress with watermelon. Experiments were conducted to define conditions for protoplast culture of cotyledons. Effects of Mannitol, Cellulase […]
Fertility Shift in an In Vitro Regenerated Male-sterile Line in Watermelon
Cucurbit Genetics Cooperative Report 16:80 (article 30) 1993 Xingping Zhang and Bill Rhodes Department of Horticulture, Box 340375, Clemson University, Clemson, SC 29634-0375 Regeneration of a male-sterile line was begun in November of 1991. Cotyledons from 20-day old fruit (ms ms x Ms ms) were inoculated on 10 μ M BA regeneration medium (Adelberg and […]
Male Sterile, ms, in Watermelon not Linked to Delayed Green, dg and I-dg
Cucurbit Genetics Cooperative Report 16:79 (article 29) 1993 Xingping Zhang and Bill Rhodes Department of Horticulture, Clemson University, Clemson, SC 29634-0375 The genetic male-sterile ms, from China (1) has been reported to be unlinked to gms (1) and Sp (2). Data are reported here on its relationship to the two genes that determine delayed green […]
Inheritance of Resistance to Races 0, 1, and 2 of Fusarium oxysporum f. sp. niveum in Watermelon (Citrullus sp. PI 296341)
Cucurbit Genetics Cooperative Report 16:77-78 (article 28) 1993 Xingping Zhang and Bill Rhodes Horticulture Department, Clemson University, Clemson, SC 29634-0375 Martyn and Netzer (1) reported Citrullus sp. PI 296341-FR to be 100% resistant to races 0 and 1 of Fusarium oxysporum f. sp. niveum but segregating for resistance to race 2. We report here inheritance […]
Improved Germination Rate After 8 Years in Certain Watermelon Families
Cucurbit Genetics Cooperative Report 15:82-83 (article 32) 1992 Bill Rhodes, Jian Nong Zhang and Xingping Zhang, W.C. Bridges, Jr. Department of Horticulture, E-142 Poole Agricultural Center, Clemson University, Clemson, SC 29634, USA, Department of Experimental Statistics, F-148 Poole Agricultural Center, Clemson University, Clemson, SC 29634-0367 Rhodes and Love (1) noted that germination rates were severely […]