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1 January 2003 Response of Glufosinate-Resistant Rice (Oryza sativa) to Glufosinate Application Timings
DAVID Y. LANCLOS, ERIC P. WEBSTER, WEI ZHANG, STEVE D. LINSCOMBE
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Abstract

At 14 d after treatment (DAT), glufosinate-resistant CPRS PB-13 rice was injured with early- and late-season glufosinate applications in 1998 and 1999. At 35 DAT, injury was less than 5%. Glufosinate delayed CPRS PB-13 heading by 7 to 15 d and reduced plant height at harvest but did not affect grain moisture and yield compared with the nontreated CPRS PB-13. But yield was reduced compared with conventional Cypress. At 14 DAT, glufosinate-resistant BNGL HC-11/62 rice was injured with early- and late-season applications. Treated BNGL HC-11/62 reached 50% heading 3 to 5 d later than did the nontreated. An application of glufosinate reduced plant height and increased grain moisture compared with the nontreated. Rice treated at the three- to five-leaf, preboot, and boot timings resulted in reduced yields compared with the nontreated BNGL HC-11/62.

Nomenclature: Glufosinate; rice, Oryza sativa L. ‘BNGL HC-11/62’, ‘Cypress’, ‘CPRS PB-13’.

Additional index words: Application intervals, injury, tolerance.

Abbreviations: DAT, days after treatment; POST, postemergence.

DAVID Y. LANCLOS, ERIC P. WEBSTER, WEI ZHANG, and STEVE D. LINSCOMBE "Response of Glufosinate-Resistant Rice (Oryza sativa) to Glufosinate Application Timings," Weed Technology 17(1), 157-160, (1 January 2003). https://doi.org/10.1614/0890-037X(2003)017[0157:ROGRRO]2.0.CO;2
Published: 1 January 2003
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