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Table III

Phytotoxic capacity of various Acacia species.

Donor species Phytotoxic effect Target species Reference
Acacia auriculiformis A.Cunn. ex Benth. Inhibitory effect on germination, root and shoot elongation and development of lateral roots Brassica juncea L. Phaseolus mungo L. Raphanus sativus L. Vigna unguiculata (L.) Walp. Cicer arietinum L. (Rafiqul Hoque et al., 2003)

Weak effect on root weight/root length ratio Oriza sativa L. (Bernhard-Reversat, 1999)

Reduction of germination, growth and dry matter accumulation of plumule and radicle Oriza sativa Vigna unguiculata (Jadhav and Gaynar, 1992)

Acacia sp. Strong inhibitory effect on seed germination Lepidium sativum L. (Heil et al., 2002)

Acacia confusa Merr. Acacia sp. Inhibition of radicle growth of test plants Lactuca sativa L. Brassica chinensis L. Medicago sativa L. (Chou et al., 1998)

Acacia dealbata Link Inhibition of germination and radicle growth Lactuca sativa (Carballeira and Reigosa, 1999)

Effects on germination, radicle and shoot length Acacia dealbata Lactuca sativa Arabidopsis thaliana (L.) Heynh. Dactylis glomerata L. Zea mays L. (Lorenzo et al., 2008)

Acacia mangium Willd Reduction of height growth Shorea leprosula Miq. Shorea stenoptera Burck (Anwar, 1992)

Acacia mearnsii De Wild. Suppression of weed establishment Conyza sumatrensis (Retz.)E.Walker Trifolium sp. Echinochloa utilis Ohwi & Yab. Lactuca sativa L. (Schumann et al., 1995)

Acacia melanoxylon R.Br. Strong toxic effect on radicle growth and germination Lactuca sativaDactylis glomerata (González et al., 1995)

Negative effects on nitrogen cycle microorganisms, inhibitory effects on germination and growth of understory plants Nitrosomonas sp. Proteolytic microorganisms Lactuca sativa Dactylis glomerata Trifolium repens L. (Souto et al., 2001)

Acacia nilotica (L.) Willd. ex. Del. Stronger allelopathic effect on growth Grasses under tree (Bashir Hussain, 1991)