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The effect of burial depth on the tuber viability of Bolboschoenus laticarpus and B. planiculmis under terrestrial conditions

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Abstract:

Adaptation to survival under drought stress was studied in two weedy Bolboschoenus species, Bolboschoenus laticarpus and B. planiculmis. Sprouting ability and viability/mortality ratio of underground tubers were studied in experimental cultivation at different burial depths. Drought strongly limited tuber sprouting. A considerable proportion of living dormant tubers was found to be stored in the soil especially at deeper soil depths. This may prevent the decay of aboveground shoots during dry periods and enable the renewal of the whole population after an unfavourable period. No strong differences in the response to dry conditions appeared between both studied species. Tubers of B. planiculmis appeared to be somewhat less viable compared to B. laticarpus.

Keywords: BOLBOSCHOENUS; BURIAL DEPTH; DROUGHT; SURVIVAL STRATEGY; TUBER DORMANCY

Document Type: Research Article

Publication date: June 1, 2007

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  • The Belgian Journal of Botany (now known as Plant Ecology and Evolution) is an international journal open to all fields of plant sciences. Please note, however, that papers restricted to purely nomenclatural matters or to floristical data of only local interest will not be accepted. The Journal appears in one volume of two issues per year. It publishes reviews, original research papers, short notes, letters to the editor, and book reviews. Click here for current issues of this journal
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