Search
All content is free for everyone to browse, read and share. You’ll find journal articles and non-peer reviewed grey literature. Type keywords into the search box or Use the filtering options below to browse the content.
Showing 812 results
Measurements were made of the length and disposition of all branches on young trees of P. contorta (a) planted in Peeblesshire, Scotland, in 1966, and...
Read moreGrowth characteristics and response to atrazine were studied in atrazine resistant (R) and susceptible (S) populations of Amaranthus retroflexus and A...
Read moreMixtures of equal numbers of plants of different barley varieties or of a barley variety and an oat variety were grown in 5 field trials and 1 glassho...
Read moreThis paper discusses the recognition, protection and utilization of the wild relatives of domesticated crops that naturally occur in Arizona (USA), wh...
Read moreA reconstruction of rate of spread, frontal-fire intensity and fuel consumption for the Galatea fire of Aug. 1936 in the Alberta foothills of the Cana...
Read moreDiurnal movements of heads and leaves of sunflower cv. Hysun 30 were determined from 3-dimensional maps of the organs. Dirunal E.-W. oscillations of t...
Read moreThis study describes a modified mowing regime that allowed green-winged orchids Anacamptis morio, discovered in 1985 on coastal grassland on a rifle r...
Read moreThe input and output of water, Na, K, Ca, P and N were measured over a 14 month period in a 45 m2 watercress bed containing 6927 kg of a soil/gravel m...
Read moreCotton was grown with 15, 45, 60 and 90 cm of irrigation water, applied before sowing. After irrigation there were 10, 28, 45 and 60 cm of available w...
Read moreAchenes of 7 species of Carduus, Cirsium and Onopordum were collected in August-September and mixed with the top 2.5 or 7.5 cm of soil which was then ...
Read more