Evidence for Allelopathic Activity of Mikania micrantha H.B.K. on Three Weed Species
Laboratory, greenhouse and field studies were conducted to determine the allelopathic potential of Mikania micrantha H.B.K. on the germination and growth of three weed species, A.systasia gangetica (L.) T. Anders., Chrysopogon aciculatus (Ritz.) Trin and Paspalum conjugatum Berg. Germination and...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Universiti Putra Malaysia Press
1994
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/3129/1/Evidence_for_Allelopathic_Activity_of_Mikania_micrantha.pdf http://psasir.upm.edu.my/id/eprint/3129/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Universiti Putra Malaysia |
| Language: | English English |
| Summary: | Laboratory, greenhouse and field studies were conducted to determine the allelopathic potential of Mikania micrantha H.B.K. on the germination and growth
of three weed species, A.systasia gangetica (L.) T. Anders., Chrysopogon aciculatus
(Ritz.) Trin and Paspalum conjugatum Berg. Germination and fresh weight of all
three weeds decreased progressively when exposed to increasing concentrations
of aqueous leaf or root extract of Mikania. The phytotoxic effect of root extract
on the radicle elongation of the test species was greater than that of leaf extract.
The dry weight and rate of emergence of the bioassay species used were affected
when Mikania debris (leaf or root) were placed on soil surfaces or incorporated into the soil. P. conjugatum emergence was strongly affected when Mikania (root
orleaf) was incorporated into the soil. Soil collectedfrom the field where Mikania
had been growing had no effecton the final germination of the three weed species.
However, dry weights of A. gangetica and P. conjugatum were significantly reduced
when grown in the Mikanilt-infested soi |
|---|