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Cabbage (Brassica oleracea) Response to Pendimethalin Applied Posttransplant

Published online by Cambridge University Press:  20 January 2017

Andrew J. Miller ,
Robin R. Bellinder ,
Bin Xu ,
Bradley J. Rauch ,
Martin C. Goffinet  and
Mary Jean C. Welser
Andrew J. Miller
Affiliation:
Department of Horticulture, Cornell University, Ithaca, NY 14853
Robin R. Bellinder*
Affiliation:
Department of Horticulture, Cornell University, Ithaca, NY 14853
Bin Xu
Affiliation:
Department of Horticulture, Cornell University, Ithaca, NY 14853
Bradley J. Rauch
Affiliation:
Department of Horticulture, Cornell University, Ithaca, NY 14853
Martin C. Goffinet
Affiliation:
Horticultural Sciences, Cornell University, New York State Agricultural Experiment Station, Geneva, NY 14456
Mary Jean C. Welser
Affiliation:
Horticultural Sciences, Cornell University, New York State Agricultural Experiment Station, Geneva, NY 14456
*
Corresponding author's E-mail: [email protected]
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Abstract

Field and greenhouse studies were conducted from 1997 to 2001 to determine cabbage response to posttransplant applications of pendimethalin (0.56 to 2.24 kg ai/ha). Differential variety response was minimal, and applications greater than 0.56 kg caused severe and persistent crop injury and reduced head number and yield in ‘Azan’, ‘Storage 4’, ‘Super Elite’, and ‘Super Red 90’. Pendimethalin (1.7 kg) applied posttransplant reduced cabbage yield weights 23, 30, and 87% with bare root, large, and small transplants, respectively. Application (0.84 kg) to soil, foliage, or soil and foliage caused 0, 81, and 82% dry weight reduction by 21 d after treatment, respectively. Anatomical analysis of two-leaf seedlings collected 3 wk after pendimethalin treatment (1.12 kg ai/ha) showed stunting of the shoot apical meristem and its emerging leaves, disorganization of apical structure with disruption of normal cell division and cell expansion, and abnormal differentiation of the vasculature in leaves and hypocotyls.

Keywords

Pendimethalincabbage, Brassica oleracea LAbsorptionapical meristemplant anatomytransplant sensitivityvariety responseDAT, days after treatmentPOST, postemergence or posttransplantPTR, pretransplantWAT, weeks after treatment
Type
Research
Information
Weed Technology , Volume 17 , Issue 2 , June 2003 , pp. 256 - 260
Copyright
Copyright © Weed Science Society of America 

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References

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