A system for plant regeneration from individual cells or explants is essential for the application of genetic engineering. In Cucurbitaceae, in vitro regeneration has been reported across a wide spectrum of crops, including summer squash (Cucurbita pepo L.) (7), winter squash (Cucurbita maxima Duch.) (9), bottle gourd (Lagenaria siceraria Standl.) (6) and, recently, figleaf gourd (Cuburbita fic...

Powdery mildew is a major fungal disease on squash and pumpkin (Cucurbita spp.) in the US and throughout the world. Genetic resistance to the disease is not known to occur naturally within Cucurbita pepo and only infrequently in Cucurbita moschata, but has been achieved in both species through the introgression of a major resistance gene from the wild species Cucurbita okeechobeensis subsp. mar...

The properties of starches isolated from two squash cultivars (Cucurbita maxima) were studied and compared with those of two pumpkin cultivars (Cucurbita moschata) and one normal potato cultivar. The amylose content of pumpkin and squash starches ranged from 16.18% to 21.29%. The pumpkin and squash starches appeared as a mixture of spherical, polyhedral and dome shaped granules. The pumpkin and...

a r t i c l e i n f o The bees of the Peponapis genus (Eucerini, Apidae) have a Neotropical distribution with the center of species diversity located in Mexico and are specialized in Cucurbita plants, which have many species of economic importance, such as squashes and pumpkins. Peponapis fervens is the only species of the genus known from southern South America. The Cucurbita species occurring...

Simple sequence repeats (SSRs) are widely used in mapping constructions and comparative genetic diversity analyses. Here, 103,056 SSR loci were found Cucurbita species by silico PCR. In general, the frequency of these SSRs decreased with increase motif length, di-nucleotide motifs most common type. For same repeat types, sharply number. The majority suitable for marker development (84.75% mosch...

The effects of different Cucurbita spp. rootstocks on melon cultivars belonging to different horticultural groups were studied by comparing grafted plants with non-grafted ones under greenhouse and open ®eld growing conditions. Winter melons (Cucumis melo L.) of the Inodorus group, cvs. `Thraki', `Peplo' and `Lefko Amynteou', and a summer melon of the Cantalupensis group, cv. `Kokkini Banana', ...

Interspecific hybridization among the three most economically important cultivated species of Cucurbita spp., Cucurbita pepo, C. moschata, and C. maxima can be made but not readily. By means of various pollination measures, different mating systems, and varying selection methods, nine advanced interspecific-bridge lines were developed, in which the crossing barrier among the species and the mal...