Plant-emitted semi-volatile compounds have low vaporization rates at 20–25°C and may therefore persist on surfaces such as plant foliage. The passive adsorption of arthropod-repellent semi-volatiles ...
IT has been shown that for ‘seeds’ (achenes) of Betula pubescens a much higher percentage germination is obtained in long days than in short days (approximately 90 and 25 per cent respectively) 1. The ...
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