Evaluation of the growth enhancing effect of Trichoderma viride Pers. Fr. on seedlings of pechay (Brassica pekinensis (Lour.)Rup), tomato(Lycopersicon escolentum Mill.) and rice(Oryza sativa L.)
Date
10-2001
Degree
Bachelor of Science in Biology
Major Course
Major in Cell Biology
College
College of Arts and Sciences (CAS)
Adviser/Committee Chair
Arcelia A. Alejar
Abstract
ABSTRACT Juaneza, Maria Anna Li, M., University of the Philippines Los Banos. October 2001. Evaluation of the Growth Enhancing Effect of Trichoderma viride Pers. Fr. on Seedlings of Pechay (Brassica peliinensis (Lour.) Rup), Tomato (Lycopersicon esculenlum Mill.) and Rice (Oryza saliva L.). Undergraduate Thesis B.S. Biology (Cell Biology). ADVISER: Dr. Arcelia Alfonso-Alejar This study is a preliminary investigation on some effects of Trichoderma viride Pers. Fr. in enhancing the growth of pechay, tomato and two rice cultivars namely IR 36 (modem plant type) and IR 65598-112-2 BSI 505 (New Plant Type). The two methods employed in treating the seedlings with Trichoderma viride, were soil inoculation and seed coating. Results showed that there were increases in the dry matter production of the treated seedlings. Microscopic examination of the root apex revealed that meristem size were longer in the treated than in the non-treated roots pronounced in pechay. Later differentiation was also observed in all the species shown by the greater distance from the root cap boundary to the first root hair. Analysis of the water extracts from soil planted to treated seedlings revealed that there were increases of soluble phosphorus in the rhizosphere consistent for all the species tested. Bioassay of the hormone-like substances present in the water extract showed no trend. Nevertheless, it appears that the gibberellic acid-like substance increased in Trichoderma treated seedlings. Statistically, seed coating with Trichoderma was more effective in enhancing seedling growth over incorporation of Trichoderma in soil. Based on the results, the growth enhancing effect of Trichoderma viride maybe via increased availability of phosphorus. The likely role of hormones in promoting growth caused by Trichoderma viride could be due to its effect on the initial events occurring in the root apex and hence its subsequent growth. However, further studies are needed to strengthen this hypothesis.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Juaneza, Maria Anna Li M., "Evaluation of the growth enhancing effect of Trichoderma viride Pers. Fr. on seedlings of pechay (Brassica pekinensis (Lour.)Rup), tomato(Lycopersicon escolentum Mill.) and rice(Oryza sativa L.)" (2001). Undergraduate Theses. 11173.
https://www.ukdr.uplb.edu.ph/etd-undergrad/11173
Document Type
Thesis
