Effects of Trichoderma harzianum on the yield and fruit quality of tomato plants (Lycopersicon esculentum) grown in an unheated greenhouse
U. Bal A B and S. Altintas AA Trakya University, Tekirdag Faculty of Agriculture, Department of Horticulture, 59030, Turkey.
B Corresponding author. Email: ugur.bal@tu.tzf.edu.tr
Australian Journal of Experimental Agriculture 46(1) 131-136 https://doi.org/10.1071/EA04003
Submitted: 15 January 2004 Accepted: 16 May 2005 Published: 9 February 2006
Abstract
Trichoderma harzianum was applied to seedling growing media (a peat and soil-based mixture or greenhouse soil) at the time of sowing, at transplanting to vials and at planting. The factorial experiment using 2 seedling growing media, 2 cultivars and 4 dosages of T. harzianum at 0 (control), 4 g/m2, 10 g/m2 and 24 g/m2 showed that the Trichoderma dosage had no significant effect on the yield or fruit quality. None of the 3 factor interactions between the criteria studied, that is, total yield, marketable yield, early yield, individual fruit weight, total soluble solids and titratable acidity, were significant except for fruit diameter. The 3 factor combination of Peat × Belleveu F1 × 10 g/m2 resulted in the highest total yield, marketable yield and early yield with 1552, 1373 and 681 g/plant, respectively. The interaction between media and cultivars was significant for all the yield characteristics studied. However, the main effect of T. harzianum on early yield was the highest at 4 g/m2, producing 527 g/plant in comparison to the control with 374 g/plant. It was, therefore, hypothesised that the positive effect of T. harzianum, observed in the early yield, may be extended to the whole growing period by further applications, that is, by periodical renewal of the T. harzianum population at the root zone.
Additional keywords: biological control agent, early yield, total yield, Trichoderma spp.
Altomare C,
Norvell WA,
Bjökman T, Harman GE
(1999) Solubilization of phosphates and micronutrients by the plant-growth-promoting and biocontrol fungus Trichoderma harzianum Rifai 1295–22. Applied and Environmental Microbiology 65, 2926–2933.
| PubMed |
(verified 12 December 2005)
Harman GE
(2000) Myths and dogmas of biocontrol changes in perception derived from research on Trichoderma harzianum T-22. Plant Disease 84, 377–393.
Howell CR
(2003) Mechanisms employed by Trichoderma species in the biological control of plant diseases: the history and evolution of current concepts. Plant Disease 87, 4–10.
Inbar J,
Abramsky M,
Cohen D, Chet I
(1994) Plant growth enhancement and disease control by Trichoderma harzianum in vegetable seedlings grown under commercial conditions. European Journal of Plant Pathology 100, 337–346.
| Crossref | GoogleScholarGoogle Scholar |
Kloepper JW,
Lifshitz R, Zablotowicz RM
(1989) Free-living bacterial inocula for enhancing productivity. Trends in Biotechnology 7, 39–43.
| Crossref | GoogleScholarGoogle Scholar |
Lewis JA, Lumsden RD
(2001) Biocontrol of damping off of greenhouse grown crops caused by Rhizoctonia solani with a formulation of Trichoderma spp. Crop Protection 20, 49–56.
| Crossref | GoogleScholarGoogle Scholar |
Mannina L,
Segre AL,
Ritieni A,
Fogliano V,
Vinale F,
Randazzo G,
Maddau L, Bottalico A
(1997) A new fungal growth inhibitor from Trichoderma viride. Tetrahedron 53, 3135–3144.
| Crossref | GoogleScholarGoogle Scholar |
Rabeendran N,
Moot DJ,
Jones EE, Stewart A
(2000) Inconsistent growth promotion of cabbage and lettuce from Trichoderma isolates. New Zealand Plant Protection 53, 143–146.
Yedidia I,
Benhamou N, Chet I
(1999) Induction of defense responses in cucumber plants (Cucumis sativus L.) by the biocontrol agent Trichoderma harzianum. Applied Environmental Microbiology 65, 1061–1070.
Yedidia I,
Srivastva AK,
Kapulnik Y, Chet I
(2001) Effects of Trichoderma harzianum on microelement concentrations and increased growth of cucumber plants. Plant and Soil 235, 235–242.
| Crossref | GoogleScholarGoogle Scholar |
Yedidia I,
Shoresh M,
Kerem Z,
Benhamou N,
Kapulnik Y, Chet I
(2003) Concomitant induction of systemic resistance to Pseudomonas syringae pv. lachrymans in cucumber by Trichoderma asperellum (T-203) and accumulation of phytoalexins. Applied Environmental Microbiology 69, 7343–7353.
| Crossref |