The allelopathic activity of the leaf extract of wild sunflower [Tithonia diversifolia (Hemsl.) Gray]
Date
6-1993
Degree
Bachelor of Science in Biology
Major Course
Major in Cell Biology
College
College of Arts and Sciences (CAS)
Adviser/Committee Chair
Bonifacio T. Mercado
Abstract
The allelopathic potential of Tithonia diversifolia (Hemsl.) Gray was demonstrated through the effect of its green leaf extract and decomposed and dried leaves on the inhibited germination of pechay (Brassica pekinensis cv. Behi) and the hundred elnongation of the shoots and roots. The allelochemicals by T. diversifolia also cause abnormalities in the cell division and increased the length and width of the cell and nuclear size of onion (Allium cepa). Furthermore, the leaf extract damaged the cell membrane as shown by the rapid fading of the anthocyanin pigment of the treated Rhoeo spathacea leaf epidermal cells.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Ramos, Simonette M., "The allelopathic activity of the leaf extract of wild sunflower [Tithonia diversifolia (Hemsl.) Gray]" (1993). Undergraduate Theses. 11934.
https://www.ukdr.uplb.edu.ph/etd-undergrad/11934
Document Type
Thesis