Competitive ability of cultivated rice against weedy rice biotypes: A review

Weedy rice has been identified as a threat to rice production worldwide. Its phenotypic and genotypic diversity and its potential to compete against rice in all development stages from germination to maturity have resulted in a loss of rice yield and grain quality, which is remarkably high in direct...

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Autores principales:	Olajumoke,Bashira, Juraimi,Abdul Shukor, Uddin,Md. Kamal, Husni,Mohd H.A., Alam,Md. Amirul
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2016
Materias:	Competitive ability Oryza rice weedy rice
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000200015
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spelling	oai:scielo:S0718-583920160002000152018-10-01Competitive ability of cultivated rice against weedy rice biotypes: A reviewOlajumoke,BashiraJuraimi,Abdul ShukorUddin,Md. KamalHusni,Mohd H.A.Alam,Md. Amirul Competitive ability Oryza rice weedy rice Weedy rice has been identified as a threat to rice production worldwide. Its phenotypic and genotypic diversity and its potential to compete against rice in all development stages from germination to maturity have resulted in a loss of rice yield and grain quality, which is remarkably high in direct- seeded rice cultivation. Weedy rice dormancy varies, it has a higher germination rate, and tolerates deeper germination depth compared to rice cultivars. Interactions of weedy rice with cultivars often reflect early vigor, more tillering, nutrient utilization ability for shoot development with respect to rice cultivars even though the latter also show an improvement in shoot development under competition. An exponential relationship has been reported between cultivated rice loss and weedy rice density: this is true for all rice cultivars. The degree of loss is dependent on the competitive ability of the rice cultivar being studied, and each weedy rice biotype also interacts differently. Hence, the need for a comprehensive study of the biology of various weedy rice variants. Difficulties arise in the management of weedy rice due to its physiological, anatomical, and morphological similarities to cultivated rice. The manipulation of the environment to improve cultivated rice production and suppress the emergence of weedy rice variants is important in the management of weedy rice, as well as other cultural practices and use of pesticides. The development of herbicide-resistant rice cultivars is necessary to totally eliminate the weedy rice variants. This review provides information on the competitive ability of weedy rice against rice cultivars; this information is essential to create management options to control weedy rice.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.76 n.2 20162016-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000200015en10.4067/S0718-58392016000200015
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Competitive ability Oryza rice weedy rice
spellingShingle	Competitive ability Oryza rice weedy rice Olajumoke,Bashira Juraimi,Abdul Shukor Uddin,Md. Kamal Husni,Mohd H.A. Alam,Md. Amirul Competitive ability of cultivated rice against weedy rice biotypes: A review
description	Weedy rice has been identified as a threat to rice production worldwide. Its phenotypic and genotypic diversity and its potential to compete against rice in all development stages from germination to maturity have resulted in a loss of rice yield and grain quality, which is remarkably high in direct- seeded rice cultivation. Weedy rice dormancy varies, it has a higher germination rate, and tolerates deeper germination depth compared to rice cultivars. Interactions of weedy rice with cultivars often reflect early vigor, more tillering, nutrient utilization ability for shoot development with respect to rice cultivars even though the latter also show an improvement in shoot development under competition. An exponential relationship has been reported between cultivated rice loss and weedy rice density: this is true for all rice cultivars. The degree of loss is dependent on the competitive ability of the rice cultivar being studied, and each weedy rice biotype also interacts differently. Hence, the need for a comprehensive study of the biology of various weedy rice variants. Difficulties arise in the management of weedy rice due to its physiological, anatomical, and morphological similarities to cultivated rice. The manipulation of the environment to improve cultivated rice production and suppress the emergence of weedy rice variants is important in the management of weedy rice, as well as other cultural practices and use of pesticides. The development of herbicide-resistant rice cultivars is necessary to totally eliminate the weedy rice variants. This review provides information on the competitive ability of weedy rice against rice cultivars; this information is essential to create management options to control weedy rice.
author	Olajumoke,Bashira Juraimi,Abdul Shukor Uddin,Md. Kamal Husni,Mohd H.A. Alam,Md. Amirul
author_facet	Olajumoke,Bashira Juraimi,Abdul Shukor Uddin,Md. Kamal Husni,Mohd H.A. Alam,Md. Amirul
author_sort	Olajumoke,Bashira
title	Competitive ability of cultivated rice against weedy rice biotypes: A review
title_short	Competitive ability of cultivated rice against weedy rice biotypes: A review
title_full	Competitive ability of cultivated rice against weedy rice biotypes: A review
title_fullStr	Competitive ability of cultivated rice against weedy rice biotypes: A review
title_full_unstemmed	Competitive ability of cultivated rice against weedy rice biotypes: A review
title_sort	competitive ability of cultivated rice against weedy rice biotypes: a review
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000200015
work_keys_str_mv	AT olajumokebashira competitiveabilityofcultivatedriceagainstweedyricebiotypesareview AT juraimiabdulshukor competitiveabilityofcultivatedriceagainstweedyricebiotypesareview AT uddinmdkamal competitiveabilityofcultivatedriceagainstweedyricebiotypesareview AT husnimohdha competitiveabilityofcultivatedriceagainstweedyricebiotypesareview AT alammdamirul competitiveabilityofcultivatedriceagainstweedyricebiotypesareview
_version_	1714205360159457280

Competitive ability of cultivated rice against weedy rice biotypes: A review

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