Search Results

You are looking at 161 - 170 of 390 items for :

  • ecological distribution x
Clear All
Full access

Josep Padullés Cubino, Josep Vila Subirós and Carles Barriocanal Lozano

.01). Therefore, water managers should focus on assessing water use in young and newly built gardens composed of unconsolidated plant communities and less established plants. Turfgrass species offer the significant ecological function of reducing erosion and

Free access

Luisa Dalla Costa, Nicola Tomasi, Stefano Gottardi, Francesco Iacuzzo, Giovanni Cortella, Lara Manzocco, Roberto Pinton, Tanja Mimmo and Stefano Cesco

temperature as an ecological factor in boreal forests 126 143 Shugart H.H. Leemans R. Bonan G.B. A systems analysis of the Global Boreal Forest Cambridge University Press Cambridge, UK Bowen, G.D. 1991 Soil temperature, root growth, and plant function 309 330

Free access

Bruce W. Wood and Larry J. Grauke

selective accumulation of REEs, especially by tetraploids, identifies these taxa as a phenomenon of potential physiological and ecological uniqueness and raises questions regarding REEs relevance of to Carya nutritional physiology. The recent discovery

Free access

Eric B. Brennan and Jim E. Leap

seed distribution and seeding depth, soil–seed contact, and predation of seed on the soil surface. These challenges explain why extension publications typically recommend 20% to 50% higher seeding rates when broadcasting than drilling ( Jeffers and

Free access

Warren E. Copes, Haibo Zhang, Patricia A. Richardson, Bruk E. Belayneh, Andrew Ristvey, John Lea-Cox and Chuanxue Hong

·cm −1 . These results are encouraging, yet too few Phytophthora species have been evaluated to understand the larger ecological implications of EC on zoospore longevity and how variable the response might be by Phytophthora species. The influence of

Free access

Hannah R. Swegarden, Craig C. Sheaffer and Thomas E. Michaels

trend was observed on a national scale; organic dry bean production increased from 1.08% to 2.38% of total dry bean acreage between 2008 and 2011 ( USDA, 2011b ). Organic dry bean price premiums and ecological system services serve as primary incentives

Free access

Phillip A. Wadl, Timothy A. Rinehart, Adam J. Dattilo, Mark Pistrang, Lisa M. Vito, Ryan Milstead and Robert N. Trigiano

seeds that were not contaminated after bleach treatment and pappus removal. A total of 500 unfilled seeds were evaluated and the distribution of contamination for the five bleach concentrations and pappus removal are reported in Table 1 . The difference

Open access

Roland Ebel

, which results in high aggregation and low compaction. Bulk densities are less than 1, and the porosity reaches values of 61% to 90%. Well-aerated and waterlogged soil compartments are present and vary in distribution. The soils show an alkaline pH of 8

Free access

A. Maaike Wubs, Yun T. Ma, Ep Heuvelink, Lia Hemerik and Leo F.M. Marcelis

each other and that variance differed between the measurements of different fruit. The method assumes a normal distribution of the parameter values and estimates the average values and standard deviations for the parameters of the fitted function ( w

Free access

Jaroslav Ďurkovič, František Kačík, Miroslava Mamoňová, Monika Kardošová, Roman Longauer and Jana Krajňáková

rapid distribution of new and improved cultivars ( Biroščíková et al., 2004 ; Conde et al., 2008 ; Ďurkovič et al., 2010 ; Harvengt et al., 2004 ; Shukla et al., 2012 ). Transgenic elms showing reduced DED symptoms have been regenerated ( Gartland et