Effects of aqueous extracts and residues decomposition of Mikania micrantha H.B.K. on selected crops

Ismail Sahid, A. Kumar

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Laboratory and greenhouse experiments were conducted to determine the effects of aqueous extract and different periods of decomposition of Mikania micrantha H.B.K. residues on the germination and growth of cucumber (Cucumis salivas L.) and Chinese cabbage (Brassica chinensis L.). Germination, radicle length and fresh weight of the two crops decreased progressively when plants were exposed to increasing concentrations (12.5, 25 and SO g/1) of aqueous leaf or root extract of Mikania. The phytotoxic effect of root extract on the germination and growth of both test crops was greater than that of leaf extract. The fresh weight and the rate of emergence of the two bioassay species decreased with an increase of Mikania residues (leaf or root residues). The emergence of both species was greatly reduced when Mikania debris (root or leaf) was incorporated into the soil after two weeks of decomposition. Fresh weight of cucumber seedlings was considerably reduced by exposure to root debris at both 1 and 2 weeks of decomposition, whereas that of Chinese cabbage was reduced only when exposed to debris after 2 weeks of decomposition. In general, root decomposed for.2 weeks or longer caused more reduction in fresh weight of both test species than did leaf.

Original languageEnglish
Pages (from-to)195-206
Number of pages12
JournalAllelopathy Journal
Volume3
Issue number2
Publication statusPublished - 1996

Fingerprint

Mikania micrantha
Mikania
degradation
extracts
crops
Chinese cabbage
water
germination
cucumbers
leaves
root radicle
Brassica rapa subsp. chinensis
Cucumis
saliva
greenhouse experimentation
leaf extracts
bioassays
testing
seedlings

Keywords

  • Allelopathy
  • Aqueous leaf extract
  • Chinese cabbage
  • Cucumber
  • Debris
  • Mikania micrantha
  • Root extract

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Effects of aqueous extracts and residues decomposition of Mikania micrantha H.B.K. on selected crops. / Sahid, Ismail; Kumar, A.

In: Allelopathy Journal, Vol. 3, No. 2, 1996, p. 195-206.

Research output: Contribution to journalArticle

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