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Bacterial (Bacillus thuringiensis subsp. thuringiensis and B. thuringiensis subsp. kurstaki) entomocidal preparations decrease chlorophyll accumulation in larch needles

Mao ZiJun; Burov, G.P.; Naghi, S.; Zoh Yanhon

Russian Journal of Plant Physiology 50(1): 105-107

2003


ISSN/ISBN: 1021-4437
DOI: 10.1023/a:1021900904848
Accession: 003656620

Chlorophyll a plus b content and absorption spectra of the homogenates from the cotyledonary leaves of 30-day-old seedlings of two larch species, Larix gmelinii and L. sibirica were studied. The seedlings were grown on Perlite containing aqueous solutions of entomocidal biopreparations isolated from Bacillus thuringiensis subsp. thuringiensis (bitoxybacillin) and B. thuringiensis subsp. kurstaki (lepidocide) at various final concentrations (2, 6, and 12 g/litre).

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