Grain sorghum hybrid response to Lasso and Dual herbicides and efficacy of Screen, Concep II, and Concep II/Apron seed safeners

Wright , D.L. and Vanderlip, R.L. and Regehr, D.L. and et al, . (1992) Grain sorghum hybrid response to Lasso and Dual herbicides and efficacy of Screen, Concep II, and Concep II/Apron seed safeners. Kansas State University: Bulletin (659). pp. 1-28.

[img] PDF - Accepted Version
Restricted to ICRISAT researchers only

Abstract

Greenhouse and field studies were conducted from 1987 to 1989 to determine sensitivity of 20 grain sorghum hybrids to preplant incorporated treatments of 4.0 lb ai Dual/acre or 5.0 lb ai Lasso/acre. The safening abilities of Screen, Concep II, and Concep II plus Apron seed treatments were compared utilizing an unsafened control under greenhouse and field conditions. Analysis of variance revealed a significant year by hybrid by herbicide by seed safener interaction. Seed safeners did not slow seedling emergence in the no-herbicide treatments in the field or greenhouse. In general, Screen, Concep II, and Concep II/Apron prevented herbicide injury to all hybrids. However, some instances of seed safener failure occurred. These failures were not consistent to any seed safener, herbicide, or sorghum hybrid. Concep II and Screen provided reciprocal protection from Dual and Lasso injury. Apron, in combination with Concep II as a seed treatment, did not reduce the safening ability of Concep II. Although some differences in efficacy did occur among seed treatments, most differences were due to hybrid response. Use of seed safeners with Dual and Lasso is still recommended. Grain sorghum hybrids responded differently to application of Dual and Lasso herbicides and the response was inconsistent among years. Variation among hybrids used in this study was too great to recommend any as more tolerant of these herbicides. However, sound production practices can reduce the potential for injury from herbicides

Item Type: Article
Uncontrolled Keywords: Sorghum bicolor; Hybrids; Herbicides; Herbicide safeners, RP7358
Author Affiliation: Kansas State University, Manhattan,
Subjects: Crop Improvement
Divisions: Sorghum
Depositing User: Mr Daneti Raju
Date Deposited: 29 Mar 2014 09:29
Last Modified: 29 Mar 2014 09:29
URI: http://eprints.icrisat.ac.in/id/eprint/12646

Actions (login required)

View Item View Item
EPrints Logo
eprints is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.