Effect of some common rhizosphere fungi on root growth of seedlings

Effect of soil microorganisms on the growth of roots in rice seedlings

“…In the present experiment, the suppression of the meristematic activity of primary roots by microorganisms seemed to stimulate the development of secondary roots. The retardation of primary root growth by soil microorganisms has also been reported with grasses (14), corn, barley and pea seedlings (8,20,25,26). In addition, similar effects of microorganisms on the formation of primary and secondary roots have been reported in tomato, clover and some other plants (6).…”

“…Among the effects of soil microorganisms on the growth of plants, considerable retardations of root growth have been reported with clover and tomato (6,25), com and barley (26), pea (8), grasses (14) and cucumber (20). However, detailed figure of those microbial activities for root growth has not been sufficiently investigated.…”

Effect of metabolites ofAspergillus niger andTrichoderma viride on development and structure of radicle of cocoa (Theobroma cacao) seedlings

“…Important observations include suppression of seed germination (Leelavathy, 1969;Narain and Prakash, 1968) and malformation and retardation of growth of seedlings (Bowen and Rovira, 1961;Curtis, 1958a, b). In many of these studies, the fungi involved included Aspergillus niger, Van Tieghem and Trichoderma viride Pers ex Fr.…”