for assessment of drought stress effects on agro characteristics of 30 lines and 6 wheat cultivars and for introducing of drought tolerant and susceptible ones one trial were established using split plot base of randomized complete block design with two replications, main plots were stress and non-stress condition and sub plots contain 30 lines and six wheat cultivars in the check trial, irriga...

Ditylenchus dipsaci-infected and noninfected alfalfa plants in a naturally infested field were studied from July 1980 to September 1982. Forty-one percent of the plants died during the study. Ninety-seven percent of the plants that died were infected with D. dipsaci. Sixty-nine percent of the observed mortality occurred during winter. Forage yield of infected plants was significantly lower than...

About ten years ago, Bob Lucky asked me for a list of open research questions in networking. I didn’t have a ready list and reacted it would be good to have one. This essay is my (long-belated) reply.

The language register used in academic communities has the special features of density, complexity, and abstractness which are associated with nominalization with which new members of the communities might not be familiar. To explore the possible distance between novice and established members regarding their awareness of this grammatical feature, the present study investigated the employment o...

ABRAMS, M. D. AND S. E. JOHNSON (School of Forest Resources, Forest Resources Building, Penn State University, University Park, PA 16802). Long-term impacts of deer exclosures on mixed-oak forest composition at the Valley Forge National Historical Park, Pennsylvania, USA. J. Torrey Bot. Soc. 139: 167– 180. 2012.—Odocoileus virginianus Zimmerman (white-tailed deer) populations at Valley Forge Na...

Estonian Agricultural University, Institute of Forestry and Rural Engineering, Kreutzwaldi 5, 51014 Tartu, Estonia. Email: [email protected] __________________________________________________________________________________ Abstract Tree-wise re-measured permanent sample plot data are needed to create and maintain modern forest growth models for Estonia. For that purpose an all-Estonian networ...

Many contemporary ecosystems are likely to be affected by multiple environmental drivers, complicating efforts to predict future changes in those ecosystems. We studied long-term changes (1980–2012) in forest dynamics and liana (woody vine) abundance and biomass in fragmented and intact forests of the central Amazon. We did so by contrasting trends in 33 permanent 1-ha plots near forest edges (...

Rapid blight is a new disease of cool season turf grasses caused by Labyrinthula terrestris. It is problematic in Arizona and ten other states in cool season turfgrasses at sites with elevated salinity of soil and/or irrigation water. L. terrestris colonizes Tifgreen bermudagrasses in the field, but causes no apparent disease. Laboratory trials have shown that as concentrations of sodium chlori...