Allelopathy Journal

  • Year: 2008
  • Volume: 22
  • Issue: 2

Allelopathic effects of Vietnamese rice varieties

  • Author:
  • Duong Pham Minh Chau, Tran Thi Kieu, Duong Van Chin
  • Total Page Count: 4
  • DOI:
  • Page Number: 409 to 412

Cuulong Delta Rice Research Institute, Co Do- Can Tho-Vietnam.

Abstract

In Lab bioassay, the allelochemicals released from 19 Vietnamese improved indica rice varieties were studies on the seedlings growth of lettuce (Lactuca sativa), kale (Brassica oleracea) and weedy rice (Oryza sativa). Results revealed that AS 996 variety stimulated the root length (32.8%) of lettuce, while, most of the remaining varieties were inhibitory. The 8 rice varieties (OM 5930, OM 4900, OM 5900, OM 3536, OM 4498, OM 4059, OM 2395, OM 4887) proved highly allelopathic and caused reduction (51.6; 81.5 and 81.5%) in root length of lettuce, kale and weedy rice, hile, reduction in hypocotyl lengths was 50.7; 40.1 and 79.4%, respectively.

Keywords

Allelopathy, inhibitory effect, rice, weedy rice