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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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