Tendrils are borne at leaf nodes and are a common morphological feature of most cucurbits. Reports of tendrilless mutants are rare in the cucurbit family. In a perusal of recent gene lists for the major cucurbits two tendrilless mutants were reported, one in cucumber (4) and the other in watermelon (3). In spring of 2010 […]
Brent Loy
Tendril Morphology in Bush and Vine Genotypes of Squash and Pumpkin
Tendrils are threadlike, coiling organs differentiated from specialized lateral shoots initiated at leaf axils, and which function in mechanical support of plants with a vining habit of growth. Morphologically, they are commonly comprised of a basal stem or shoot axis of variable length which branches into tendrils which are thigmotropic, coiling around objects in which […]
Interaction of Three Loci, l-1, l-2, and d, in Conferring the Reverse Stripe Phenotype in Egg Gourd
There are more than a dozen described genes that govern rind color and rind color patterns in fruit of Cucurbita pepo L. (9), and expression of such traits is complex because colors and patterns can change at different stages of fruit development (11) and many of the gene loci affecting fruit pigmentation have multiple alleles. […]
Patterns of Broad Normal Striping in Egg Gourd
There are two general patterns of striped pigmentation patterns in Cucurbita pepo, reverse striping (3, 7), characterized by green narrow stripes over the vein tracts (vasculature) and wide white stripes between the vein tracts, and normal striping (5, 6, 8), characterized by narrow white to blue-gray stripes over vein tracts and wide green stripes between […]
2012 to 2013 Squash and Pumpkin Reports
Squash and Pumpkin (Cucurbita spp.) Two Cucurbita moschata Bush-Parthenocarpic Breeding Lines Through an Interspecific Cross Young Hyun Om CGC 35 & 36:11-12 (2012-2013) Identification of Natural Sources of Resistance to Powdery Mildew, Zucchini yellow mosaic virus (ZYMV) and Fruit Flies Infestation in the Indigenous Pumpkin (Cucurbita moschata) Germplasm Mohamed T. Yousif, Ali E. Eljack and […]
Seed Development and Seed Fill in Hull-less Seeded Cultigens of Cucurbita pepo L.
Cucurbit Genetics Cooperative Report 21:59-61 (article 21) 1998 Kelly Vining and Brent Loy Department of Plant Biology, University of New Hampshire, Durham, NH 03824 Introduction. A breeding program to develop hull-less seeded cultivars of pumpkin has been ongoing at the University of New Hampshire since the early 1980s (3). The initial goal of the program […]
Seed Fill Occurs in Stored Fruit of Cucurbita pepo L. Harvested Prematurely
Cucurbit Genetics Cooperative Report 21:57-58 (article 20) 1998 Kelly Vining and Brent Loy Department of Plant Biology, University of New Hampshire, Durham, NH 03824 Introduction. Pumpkin plants (Cucurbita pepo L.) often senesce prematurely in the fall because of disease pressures or low temperatures. Seeds from fruit of such plans are not well-filled, and it is […]
Effect of Fruit Thinning on Dry Matter Accumulation and Variability in Cucurbita maxima Winter Squash
Cucurbit Genetics Cooperative Report 6:72-73 (article 36) 1983 Deborah Evans and Brent Loy University of New Hampshire, Durham, NH 03824 In breeding efforts to develop small-fruited bush strains of C. maxima winter squash, we have encountered problems in obtaining strains with consistently high dry matter in the pericarp of fruit. Preliminary observations suggested that this […]