Biology and Life Sciences

Biology and Life Sciences

Effect of Acacai seyal Del tree age and distance on sorghum (sorghum bicolor) germination and mortality

Pages: 6  ,  Volume: 9  ,  Issue: 1 , July   2018
Received: 02 Aug 2018  ,  Published: 07 August 2018
Views: 36  ,  Download: 24

Authors

# Author Name
1 Mai M. A. Hassan
2 Fatima Algunaid Hassan

Abstract

A.seyal trees are widely spread species in Sudan, that could be recommended as agro forestry species but before that the existence of inhibitors must be examine . so this study was conducted in order to investigate the effect of tree age and the distance from the tree crown on the germination and mortality of sorghum. four categories diameter at breast height as indictor of the trees age selected (32-51cm, 52 -71cm, 72-81 cm and 82 –above cm) and Five trees in each category and two sorghum varieties (Tabat and HSD) were grown underneath these trees in different distance after the crown (1, 2 and 3 meter) The germination percentage, seedling mortality were recorded. The results showed that the oldest trees have significantly decreased the germination percentage even when the sorghum (Tabat variety) was grown 3 meter far from the crown (table 1).  But when this experiment was repeated with anther variety (HSD) the results were little bit varied . the seedling grown underneath the oldest trees(91- ≤ cm) had the lowest mortality percentage for both varieties and three distance from the tree crown (1,2 and 3 m). This results suggest that the different varieties have different response to inhibitors released by A. seyal trees.

Keywords

References

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F.J. Espinosa-Garcia 1,, E. Martinez-Hernernandez and A. Quiroz-Flores . 2008. Allelopathic potential of Eucalyptus spp plantations on germination and early growth of annual crops. Allelopathy Journal. 21 (1):25-37

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Stamp, N. (2003. Out of the quagmire of plant defense hypotheses. The Quarterly Review of Biology 78 (1): 23–55,

Kamel. M, Sabah A. Hammad. S.A, (2015). The Allelopathic Effect of the Exotic Tree Acacia saligna on the Germination of Wheat and Canola. ECOLOGIA BALKANICA. Vol.7, Issue 1. pp.103-112.

Noumi. Z and Chaieb, M (2011). Allelopathic Effects OF Acacia Tortilis (Forssk.) Hayne Subsp. Raddiana (Savi) Brena in Africa . Pak. J. Bot., 43(6): 2801-2805, 2011.

 

 

Kidd, C.V. and D. Pimentel. 1992. Integrated resource management. In: Agroforestry for evelopment. Academic Press, San Diego, USA, 233p.

 

Reigosa, M.J., J.F. Casal and A. Carballeira. 1984. Efectos alelopaticos de Acacia dealbata Link durante su floracion. Stud. Oecol ., 5: 135-150.

 

Rafiqul Hoque, A.T.M., R. Ahmed, M.B. Uddin and M.K. Hossain. 2003. Allelopathic effect of different concentration of water extracts of Acacia auriculiformis leaf on some initial growth parameters of five common agricultural crops. Pak. J. Agron., 2 .92-100.

 

Barnes, R.D., D.L. Filer and S.J. Milton. 1996. Acacia karroo  .Tropical Forestry Papers.32

. Oxford Forestry Institute,  Oxford University.

 

F.J. Espinosa-Garcia 1,, E. Martinez-Hernernandez and A. Quiroz-Flores . 2008. Allelopathic potential of Eucalyptus spp plantations on germination and early growth of annual crops. Allelopathy Journal. 21 (1):25-37

Rao and Reddy (1984)

 

.Thakur and Bhardwaj (1992)