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Jasim Uddain, Sanzida Islam Tripti, Mohammad Shah Jahan, Nasrin Sultana, Md Jahedur Rahman, and Sreeramanan Subramaniam

Squash ( Cucurbita pepo L.) is one of the most nutritive and delicious vegetables; its origins are central Mexico, Peru, and the United States ( Kathiravan et al., 2006 ). Squash belongs to the family of Cucurbitaceae and genus of Cucurbita

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Juan Pablo Arce-Ochoa, Frank Dainello, Leonard M. Pike, and David Drews

`Pavo', a commercially grown, virus-susceptible squash (Cucurbita pepo L.) hybrid, and two experimental virus-resistant transgenic squash hybrids, XPH-1719 and XPH-1739, were tested for field performance. The two transgenic squash hybrids possess the desired fruit and plant characteristics of their parental line, `Pavo', plus resistance to zucchini yellow mosaic virus and watermelon mosaic virus 2 (XPH-1719), and resistance to zucchini yellow mosaic virus, watermelon mosaic virus 2, and cucumber mosaic virus (XPH-1739). Percent emergence and days to flowering were similar among the three hybrids. XPH-1719 and XPH-1739 were equally effective in producing a high percentage of quality marketable fruit and yields with 90% and 13,800 kg·ha–1 and 87% and 16,500 kg·ha–1, respectively. XPH-1719 and XPH-1739 demonstrated their outstanding virus resistance over `Pavo' by producing only 3% and 14% symptomatic plants, respectively, compared to 53% for `Pavo'. They also produced the lowest percentage of infected fruit, 0% and 7%, respectively, with `Pavo' at 26%.

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Kristen Young and Eileen A. Kabelka

Squash silverleaf (SSL) disorder is an economically important physiological disorder affecting squash ( Cucurbita pepo L.) throughout the United States, the Caribbean region, and Israel ( Cardoza et al., 1999 ). It is characterized by silvering

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Aly M. Ibrahim, A.I. Al-Suliman, and K.A. Al-Zeir

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Elsa S. Sánchez, Thomas M. Butzler, Lee J. Stivers, Timothy E. Elkner, Steven M. Bogash, R. Eric Oesterling, and Michael D. Orzolek

Winter squashes are valued for their edible and ornamental uses. They are sources of vitamin A, beta-carotene, potassium, vitamin C, and fiber [ Pennsylvania Department of Public Welfare (DPW), 2005 ; U.S. Department of Agriculture (USDA), 2012

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Timothy Coolong

Summer squash is widely grown in spring and fall seasons in southwestern Georgia. Georgia is a significant supplier of yellow (crookneck and straightneck) and zucchini squash for the United States and is typically ranked in the top three nationally

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Caitlin E. Splawski, Emilie E. Regnier, S. Kent Harrison, Karen Goodell, Mark A. Bennett, and James D. Metzger

effect on crop management. Although crop pollinators in general may benefit from reductions in herbicide use and tillage operations, pollinators that use agricultural fields for nesting deserve consideration. One such pollinator is the squash bee, a major

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Les D. Padley Jr, Eileen A. Kabelka, and Pamela D. Roberts

. argyrosperma (formerly C. mixta ), and C. ficifolia . Cucurbita cultivars are categorized as summer or winter squash. Summer squash is eaten immature when tender and seeds are small and soft. Winter squash is generally eaten when rind and seeds are fully

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R.W. Robinson and Stephen Reiners

Summer squash (Cucurbita pepo L.) cultivars were compared for ability to set parthenocarpic fruit. Some cultivars set no parthenocarpic fruit and others varied in the amount of fruit set when not pollinated. The degree of parthenocarpy varied with season, but the relative ranking of cultivars for parthenocarpy was generally similar. Cultivars with the best parthenocarpic fruit set were of the dark green, zucchini type, but some cultivars of other fruit types also set parthenocarpic fruit. A summer squash cultivar was developed that combines a high rate of natural parthenocarpy with multiple disease resistance. Yield of summer squash plants grown under row covers that excluded pollinating insects was as much as 83% of that of insect-pollinated plants in the open.

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Harry S. Paris and Aviva Hanan

Summer squash plants are monoecious, producing staminate and pistillate flowers. The flowers are borne at the stem nodes, more precisely at the leaf axils, the junctions of the stem with the bases of the leaf petioles. Staminate flowers