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The following is substantially the authors' summary. To provide means of predicting with precision the duration of the puparial stage of Glossina mors...
Read moreThe following is substantially the authors' summary. Investigations on the diurnal activity and seasonal distribution of Glossina morsitans orientalis...
Read moreClimax grassland consisting mainly of Trachypogon spicatus, Tristachya hispida, Elyonurus argenteus, Digit-aria tricholaenoides and Heteropogon contor...
Read moreTo estimate the effect of foliage at different positions in the profiles of kale crops on the rate of photosynthesis below it, crop LAI was varied by ...
Read moreNatural populations of Trifolium repens collected from contrasting soil types differed in response to Ca, Mg and K when grown in sand culture. Populat...
Read moreResults of some experiments on a range of species, including maize, birdsfoot trefoil, perennial ryegrass, meadow foxtail and intermediate wheatgrass,...
Read moreThe Zn and Cu tolerance of populations of Agrostis tenuis, A. stolonifera, Anthoxanthum odoratum, Festuca rubra and F. ovina was tested on root growth...
Read moreThe Luangwa Valley is about 700 km long and up to 90 km wide, and contains about 15, 000 km2 of game reserves where local overgrazing and overbrowsing...
Read moreTo estimate the effect of foliage at different positions in the profiles of kale crops on the rate of photosynthesis below it, crop LAI was varied by ...
Read moreWhen weather was favourable (warm, dry) for ovi-position by O. frit, the combined activity of predators and parasites was found to be inadequate to pr...
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