Search Results

You are looking at 31 - 40 of 231 items for :

  • "Solanaceae" x
  • Refine by Access: All x
Clear All
Free access

Alan W. Meerow, Rick J. Schoellhorn, and Michael Kartuz

Free access

Félix H. França and Ward M. Tingey

The influence of light level on the expression of resistance in Solanum berthaultii Hawkes (accessions PI 473331 and PI 473334) to the Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), was studied by exposing plants to two levels of photosynthetically active radiation: 272 ± 37 μE/m2 per sec and 1025 ± 150 μE/m2 per sec. Over 26 days, shading generally reduced densities of type A and B glandular trichomes, volume of trichome exudate, and phenolic oxidation activity of type A trichomes. In both light regimes, larvae reared on S. tuberosum L. were heavier, developed more rapidly, and had greater survival than those reared on S. berthaultii. Similarly, females reared on S. tuberosum were heavier and produced 10- to 20-fold more egg masses and 68 to 472 times more eggs than those reared on S. berthaultii grown at the same light level. Light level did not affect larval weight, developmental time, survival, adult weight, or fecundity of CPB on either host plant species.

Free access

Alfredo Reyes-Tena, Arturo Castro-Rocha, Gerardo Rodríguez-Alvarado, Gerardo Vázquez-Marrufo, Martha Elena Pedraza-Santos, Kurt Lamour, John Larsen, and Sylvia Patricia Fernández-Pavía

The oomycete Phytophthora capsici is highly destructive to vegetable species in the Solanaceae, Cucurbitaceae, and Fabaceae families ( Kamoun et al., 2015 ). Worldwide, it is the main pathogen limiting chili pepper ( Capsicum annuum ) production

Free access

Philipp von Bieberstein, Ya-ming Xu, A.A. Leslie Gunatilaka, and Raphael Gruener

; Nagella and Murthy, 2011 ). Our study compares these variables for Withania somnifera when grown under soilless hydroponic and aeroponic conditions. W. somnifera (L.) Dunal (Solanaceae) has been used for over 3000 years in the Ayurvedic medical

Free access

John W. Scott

genomics be part of the process. The USDA AFRI Coordinated Agricultural Projects (CAPs) are an effort to address this. Tomato/solanaceae issues regarding translational genomics were discussed by Francis (2005) and later the SolCAP project was funded in

Free access

Aaron E. Walworth and Ryan M. Warner

brings about an increase in freezing tolerance through a process termed cold acclimation ( Thomashow, 1999 ). Within the family Solanaceae, even within the genus Solanum , species vary considerably in their ability to cold-acclimate. The chilling

Full access

Sven Verlinden, Louis McDonald, James Kotcon, and Silas Childs

-input treatment is shown in Table 3 . Fertility in low-input plots was managed solely with cover crop and mulch. Mixed species hay mulches used to control weeds in the Solanaceae and Cucurbitaceae plots (Years 3 and 4 of the rotation) were incorporated and short

Free access

Serge Bégin, Joe Calandriello, and Pierre A. Dubé

In Québec the intensive use of plastic films in field production of vegetables and fruit is evident by increased acreage for this sector of agriculture since 1985. This technique is used particularly for sweet corn, cucurbitaceae and solanaceae, and strawberry production. Since 1987 some research projects have been established by the research and development division of the Quebec ministry of agriculture (MAPAQ) to adapt this technology to the Québec climate and to the needs of producers. The objectives of MAPAQ researchers are to extend the production season, improve the quality and productivity of fruit and vegetable crops, diminish production costs, and propose profitable alternatives for controlling crop pests.

Free access

J. Prohens, J.J. Ruiz, and F. Nuez

Tamarillo [Cyphomandra betacea (Cav.) Sendt., Solanaceae] dark-red-, red-, and yellow-type fruit were sorted into two maturity stages (green and turning); dipped in ethephon at 0, 250, 500, or 750 mg·liter–1; and kept at 18 or 28C. Seven days later, fruit dipped in ethephon at 500 or 750 mg·liter–1 and stored at 28C showed a color score, maturity index, and ascorbic acid content similar to those tree-ripened, thus making it possible for harvesting to be advanced 36 days. Under these conditions, weight loss was always lower than 8.5%, resulting in only slight symptoms of shriveling that did not affect commercial quality. Postharvest ripening reduces the risk of crop failure, increases earliness, and concentrates harvesting. Chemical name used: (2-chloroethyl)phosphonic acid (ethephon).

Full access

Paul W. Bosland

Capsicum, a New World genus, has a richness in diversity that has not received much attention. Along with tomato and potato, chile is one of the important New World crops belonging to the Solanaceae family. The Capsicum fruits are popular and used in cuisines from all over the world. There are many different cultivars, forms, and uses of Capsicum. Most cultivars grown in the United States belong to one species, Capsicum annuum. The species is divided into groups based on fruit shape, flavor, and culinary use. Unfortunately, there is confusion about the names associated with the various fruit types. This article attempts to reduce some of the confusion. Whatever the name, there can be no argument that Capsicum is an amazing plant genus.