Criteria for Decision Making and Economic Threshold Level for Wild Radish in Wheat Crop
ABSTRACT: Weed competition limits wheat yield by reducing the availability of essential resources for its growth and development. In this sense, this study aimed to estimate the economic threshold level (ETL) of wild radish (Raphanus raphanistrum) in competition with wheat cultivars. Treatments were arranged in a factorial scheme. The factor wheat cultivar consisted of early (BRS 328), medium (BRS 177), and late (BRS Umbu) cycles and the factor wild radish population ranged from 0 to 564 plants m-2 (10 populations) for the cultivar BRS 328, 0 to 472 plants m-2 for the cultivar BRS 177 (11 populations), and 0 to 724 plants m-2 for the cultivar BRS Umbu (10 populations). The early-cycle BRS 328 presented a higher competitive ability when compared to the medium-cycle BRS 177 and late-cycle BRS Umbu. Yield losses of wheat grains due to wild radish interference can be satisfactorily estimated by the rectangular hyperbola model using the variables plant population, shoot dry matter, soil cover, and leaf area of the weed. ETL values varied as a function of the cultivar cycle, being higher for the cultivar BRS 328 (early) > BRS 177 (medium) > BRS Umbu (late). Wild radish is competitive in wheat crop, requiring at least 1.6 plants m-2 for control to be justified.
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Brasileira da Ciência das Plantas Daninhas
2019
|
| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100204 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
oai:scielo:S0100-83582019000100204 |
|---|---|
| record_format |
ojs |
| spelling |
oai:scielo:S0100-835820190001002042019-02-13Criteria for Decision Making and Economic Threshold Level for Wild Radish in Wheat CropTAVARES,L.C.LEMES,E.S.RUCHEL,Q.WESTENDORFF,N.R.AGOSTINETTO,D. Triticum aestivum L. Raphanus raphanistrum cultivars populations ABSTRACT: Weed competition limits wheat yield by reducing the availability of essential resources for its growth and development. In this sense, this study aimed to estimate the economic threshold level (ETL) of wild radish (Raphanus raphanistrum) in competition with wheat cultivars. Treatments were arranged in a factorial scheme. The factor wheat cultivar consisted of early (BRS 328), medium (BRS 177), and late (BRS Umbu) cycles and the factor wild radish population ranged from 0 to 564 plants m-2 (10 populations) for the cultivar BRS 328, 0 to 472 plants m-2 for the cultivar BRS 177 (11 populations), and 0 to 724 plants m-2 for the cultivar BRS Umbu (10 populations). The early-cycle BRS 328 presented a higher competitive ability when compared to the medium-cycle BRS 177 and late-cycle BRS Umbu. Yield losses of wheat grains due to wild radish interference can be satisfactorily estimated by the rectangular hyperbola model using the variables plant population, shoot dry matter, soil cover, and leaf area of the weed. ETL values varied as a function of the cultivar cycle, being higher for the cultivar BRS 328 (early) > BRS 177 (medium) > BRS Umbu (late). Wild radish is competitive in wheat crop, requiring at least 1.6 plants m-2 for control to be justified.info:eu-repo/semantics/openAccessSociedade Brasileira da Ciência das Plantas Daninhas Planta Daninha v.37 20192019-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100204en10.1590/s0100-83582019370100004 |
| institution |
SCIELO |
| collection |
OJS |
| country |
Brasil |
| countrycode |
BR |
| component |
Revista |
| access |
En linea |
| databasecode |
rev-scielo-br |
| tag |
revista |
| region |
America del Sur |
| libraryname |
SciELO |
| language |
English |
| format |
Digital |
| author |
TAVARES,L.C. LEMES,E.S. RUCHEL,Q. WESTENDORFF,N.R. AGOSTINETTO,D. |
| spellingShingle |
TAVARES,L.C. LEMES,E.S. RUCHEL,Q. WESTENDORFF,N.R. AGOSTINETTO,D. Criteria for Decision Making and Economic Threshold Level for Wild Radish in Wheat Crop |
| author_facet |
TAVARES,L.C. LEMES,E.S. RUCHEL,Q. WESTENDORFF,N.R. AGOSTINETTO,D. |
| author_sort |
TAVARES,L.C. |
| title |
Criteria for Decision Making and Economic Threshold Level for Wild Radish in Wheat Crop |
| title_short |
Criteria for Decision Making and Economic Threshold Level for Wild Radish in Wheat Crop |
| title_full |
Criteria for Decision Making and Economic Threshold Level for Wild Radish in Wheat Crop |
| title_fullStr |
Criteria for Decision Making and Economic Threshold Level for Wild Radish in Wheat Crop |
| title_full_unstemmed |
Criteria for Decision Making and Economic Threshold Level for Wild Radish in Wheat Crop |
| title_sort |
criteria for decision making and economic threshold level for wild radish in wheat crop |
| description |
ABSTRACT: Weed competition limits wheat yield by reducing the availability of essential resources for its growth and development. In this sense, this study aimed to estimate the economic threshold level (ETL) of wild radish (Raphanus raphanistrum) in competition with wheat cultivars. Treatments were arranged in a factorial scheme. The factor wheat cultivar consisted of early (BRS 328), medium (BRS 177), and late (BRS Umbu) cycles and the factor wild radish population ranged from 0 to 564 plants m-2 (10 populations) for the cultivar BRS 328, 0 to 472 plants m-2 for the cultivar BRS 177 (11 populations), and 0 to 724 plants m-2 for the cultivar BRS Umbu (10 populations). The early-cycle BRS 328 presented a higher competitive ability when compared to the medium-cycle BRS 177 and late-cycle BRS Umbu. Yield losses of wheat grains due to wild radish interference can be satisfactorily estimated by the rectangular hyperbola model using the variables plant population, shoot dry matter, soil cover, and leaf area of the weed. ETL values varied as a function of the cultivar cycle, being higher for the cultivar BRS 328 (early) > BRS 177 (medium) > BRS Umbu (late). Wild radish is competitive in wheat crop, requiring at least 1.6 plants m-2 for control to be justified. |
| publisher |
Sociedade Brasileira da Ciência das Plantas Daninhas |
| publishDate |
2019 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100204 |
| work_keys_str_mv |
AT tavareslc criteriafordecisionmakingandeconomicthresholdlevelforwildradishinwheatcrop AT lemeses criteriafordecisionmakingandeconomicthresholdlevelforwildradishinwheatcrop AT ruchelq criteriafordecisionmakingandeconomicthresholdlevelforwildradishinwheatcrop AT westendorffnr criteriafordecisionmakingandeconomicthresholdlevelforwildradishinwheatcrop AT agostinettod criteriafordecisionmakingandeconomicthresholdlevelforwildradishinwheatcrop |
| _version_ |
1756390634359357440 |