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Establishment and early persistence of ten forage legumes under three grazing regimes in southern Mozambique

 

作者: J.P. Muir,  

 

期刊: African Journal of Range & Forage Science  (Taylor Available online 1993)
卷期: Volume 10, issue 3  

页码: 135-139

 

ISSN:1022-0119

 

年代: 1993

 

DOI:10.1080/10220119.1993.9638340

 

出版商: Taylor & Francis Group

 

关键词: Forage banks;semi‐arid;tropical legumes

 

数据来源: Taylor

 

摘要:

Leucaena leucocephala, Clitoria ternatea, Macroptilium atropurpureumcv. Siratro,Cassia rotundifoliacv. Wynn,Macrotyloma axillarecv. Archer,Stylosanthes guianensisvar.guianensiscv. Graham,S. guianensisvar.intermediacv. Oxley,S. hamatacv. Verano and 5.scabracv. Fitzroy and cv. Seca were screened for their ability to establish at five coastal sites of Maputo province, Mozambique. Three grazing treatments were imposed in strips: continuous access, dry‐season‐only access and an ungrazed control. Grazing pressure was dependent on the movement of communal cattle and goat herds. Mean seedling emergence ranged from a low of 28% for Graham to a high of 78% for Siratro. First season mean seedling vigour (1–10) differed (P=0.01) among entries and ranged from 4.0 for Graham to 8.0 for Seca. First‐year dry season individual plant vigour showed an interaction (P=0.1) between grazing treatment and entry with Siratro and Seca plots averaging 3.0 or better. Dry season plot cover likewise showed an interaction (P=0.002) between treatment and entry with Siratro and Seca averaging over 20%. Second rainy season vigour showed differences (P=0.03) among species only, with Siratro and Seca having values over 7.0. Plot cover was likewise differentiated only among species(P=0.0006) with Siratro and Seca both covering 59% of their plots, superior toC. ternatea(19%),L. leucocephala(9%), Archer (7%), Verano (16%), Fitzroy (28%), Graham (29%), and Wynn (4%). Oxley (36%) was undifferentiated from either group. Overall, Siratro and Seca had the best establishment whilst Oxley showed promise. Deferred grazing generally appeared to have little effect on establishment.

 

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