A bioassay for dl-Strigol using witchweed [Striga asiatica (L.) Kuntze] seed germination

Hsiao, A.I. and Worsham, A.D. and Moreland, D.E. (1981) A bioassay for dl-Strigol using witchweed [Striga asiatica (L.) Kuntze] seed germination. Zeitschrift für Pflanzenphysiologie, 104 (1). pp. 1-8.

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Abstract

A new, sensitive, quantitative germination bioassay for dl-strigol (ST) was developed using Witchweed [Striga asiatica (L.) Kuntze] seeds. The bioassay was based on the physiological role of ST as a Witchweed seed germination regulator that inhibits the conditioning process when applied during an early stage of conditioning and stimulates germination when applied at a later stage. Concentrations of ST from 10-14 to 10-6 M or the equivalent activity in solutions containing Witchweed germination stimulants or regulators from soil extracts of corn, cotton, peanuts, soybeans, sorghum, and wild oats were measured. A corn plant grown in sand or a cotton, sorghum, or soybean plant grown in a sandy loam soil exuded germination regulators equivalent to 0.3 µg of ST during the first 6 to 7 days of germination and growth

Item Type: Article
Uncontrolled Keywords: Parasitic plants; germination stimulation; weed control
Author Affiliation: Agriculture Canada, Research Station, Regina, Saskatchewan Canada and Department of Crop Science, North Carolina State University, Raleigh, N. C., USA
Subjects: Plant Protection
Plant Protection > Pesticides
Plant Protection > Pests
Crop Improvement > Seed Technology
Divisions: Groundnut
Sorghum
Soyabean
Depositing User: Ms K Syamalamba
Date Deposited: 06 Mar 2013 10:48
Last Modified: 06 Mar 2013 10:48
Official URL: http://dx.doi.org/10.1016/S0044-328X(81)80089-X
URI: http://eprints.icrisat.ac.in/id/eprint/9796

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