Effects of fire, bruchid beetles and soil type on germination and seedling establishment ofAcacia drepanolobium
作者:
B.D. Okello,
T.P. Young,
期刊:
African Journal of Range & Forage Science
(Taylor Available online 2000)
卷期:
Volume 17,
issue 1-3
页码: 46-51
ISSN:1022-0119
年代: 2000
DOI:10.2989/10220110009485738
出版商: Taylor & Francis Group
关键词: ARID UPLANDS;BLACK COTTON SOILS;KENYA;LAIKIPIA;REGENERATION
数据来源: Taylor
摘要:
The effects of fire, bruchid seed beetles and soil type on the germination and seedling establishment ofAcacia drepanolobiumwere experimentally investigated. Seeds subjected to three seed treatments (bruchid damaged, bruchid-free burnt, and bruchid-free unburned) were germinated in three different soil types (black cotton, red sandy, and clay loam soils). Undamaged seeds had significantly higher germination (85.3%) than either beetle damaged (20.6%), or burnt seeds (3.4%). Soil type did not influence germination or seedling survival. Burnt seeds had an average germination of 2% in clay loams and 5.4% in red sandy soils, while beetle damaged seeds had an average germination of 15.6% in clay loams and 28.7% in black cotton soils. Treatment effects on seedling mortality or survival were not significant but seedlings from undamaged seeds had higher survival rates than those damaged by bruchid beetles.
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