Search Results

You are looking at 51 - 60 of 2,459 items for :

  • Refine by Access: All x
Clear All
Free access

Nickolee Zollinger, Richard Koenig, Teresa Cerny-Koenig, and Roger Kjelgren

which irrigation water does not come in contact with leaves. A limited number of commonly grown herbaceous perennials have native distributions in saline environments and are thought to have some tolerance to salinity. For example, Leucanthemum

Free access

Rosanna Freyre and Erin Tripp

and variable genus ( Daniel et al., 1984 , 1990 ; Daniel and Chuang, 1993). Twenty-four species of Ruellia have been described as found in the continental United States, Hawaii, Puerto Rico, and the Virgin Islands, five of which are native to

Free access

Gary Paul Nabhan, Mahina Drees, and Kevin Dahl

The binational Southwest remains rich in native crop land races and crop wild relatives, despite numerous pressures favoring genetic erosion. Native Seeds/SEARCH is promoting in situ conservation in traditional Indian fields and nearby wild habitats, but also maintains a gene bank as a back-up, to allow future reintroductions. Seeds are distributed to Native American communities for free, and their value is reinforced through a variety of educational materials and presentations. Our regional focus allows us to serve as an effective bridge between in situ and ex situ conservationists, between Indian and international organizations, and between tribes. Methods, ethics and accomplishments to date will be highlighted.

Free access

Gen-Fa Zhu and Dong-Mei Li

characteristics and other beneficial traits, a large number of novel cultivars of Dendrobium have been produced through interspecific hybridization in Japan and Korea. In China, there are 74 native species and two varieties of Dendrobium classified into 12

Open access

E.J. Garvey and P.M. Lyrene


Nineteen native blueberry (Vaccinium ashei Reade) clones selected from several areas in northern Florida and southeastern Georgia were self- and cross-pollinated in a greenhouse. Fruit set for the 19 clones averaged 15% after self-pollination and 58% after cross-pollination. Viable seeds per berry averaged four for self-pollination and 11 for cross-pollination. Average berry weight was 0.7 g for self-pollination and 1.1 g for cross-pollination, and average interval from flowering to ripening was 106 days for selfing and 92 days for crossing. Following self-pollination, pollen germinated and pollen tubes grew down the style as rapidly as after cross-pollination.

Open access

Andrew Sherwood, Lisa W. Alexander, Matthew D. Clark, Steve McNamara, and Stan C. Hokanson

. quercifolia is relatively recent, with only a few cultivars that have known pedigrees available ( Reed, 2010 ; Reed and Alexander, 2015 ). Additionally, the native range of the species is relatively small in the southeastern United States, making it amenable

Free access

Matthew Chappell, Carol Robacker, and Tracie M. Jenkins

, interspecific hybridization and introgression were confirmed in more than 75% of the surveyed individuals. This study verified the value of DNA-based studies to distinguish between species of deciduous azaleas and indicated that introgression in native azaleas

Free access

Deborah Dean, Phillip A. Wadl, Denita Hadziabdic, William E. Klingeman, Bonnie H. Ownley, Timothy A. Rinehart, Adam J. Dattilo, Brian Scheffler, and Robert N. Trigiano

). Viburnum rufidulum , one of the 12 species native to North America ( U.S. Department of Agriculture, 2008 ), is a small deciduous tree capable of growing to a height of about 3.0 to 9.0 m ( Dirr, 2007 ). Cymes of small white flowers attract a variety of

Open access

Hanah T. Rheay, Kevin Lombard, Catherine Brewer, and F. Omar Holguin

Common hops ( Humulus lupulus ) used in brewing are typically of European genetics and cultivated between latitudes 45°N to 50°N ( Dodds, 2017 ). Lesser studied, neomexicanus hops ( H. lupulus var. neomexicanus ) are native to the western United

Open access

Lyn A. Gettys and Kimberly A. Moore

Projects that focus on restoration, mitigation, and enhancement of aquatic and wetland regions provide valuable ecosystem services and habitat for native flora and fauna ( Brix, 1994 ). These projects call for a mixture of plant types and sizes to