INTERFERENCE DURATIONS OF BEARDED SPRANGLETOP (LEPTOCHLOA-FASCICULARIS) IN RICE (ORYZA-SATIVA)

Authors
CAREY VF SMITH RJ TALBERT RE
Citation
Vf. Carey et al., INTERFERENCE DURATIONS OF BEARDED SPRANGLETOP (LEPTOCHLOA-FASCICULARIS) IN RICE (ORYZA-SATIVA), Weed science, 42(2), 1994, pp. 180-183
Citations number
14
Categorie Soggetti
Plant Sciences",Agriculture
Journal title
Weed science → ACNP
ISSN journal
00431745
Volume
42
Issue
2
Year of publication
1994
Pages
180 - 183
Database
ISI
SICI code
0043-1745(1994)42:2<180:IDOBS(>2.0.ZU;2-I
Abstract
Effects of bearded sprangletop interference durations on Lemont and Ne wbonnet rice cultivars were studied. Interference durations of 63, 70, and 130 d after rice emergence reduced Lemont grain yields 11, 21, an d 50 %, respectively, and towered Newbonnet grain yields 11, 13, and 3 7 %, respectively. Interference durations of 21 to 56 d after emergenc e did not reduce grain yields of either cultivar. Bearded sprangletop grown in Lemont rice produced more biomass than that in Newbonnet. Sea son-tong interference reduced plant height and straw dry weight of Lem ont more than that of Newbonnet.