Radiation and nitrogen use at the leaf and canopy level by wheat and oilseed rape during the critical period for grain number definition
During the critical period for grain number definition, the amount of biomass produced per unit absorbed radiation is more sensitive to nitrogen (N) supply in oilseed rape than in wheat, and reaches a higher value at high N. This response was investigated by combining experimental and modelling work...
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| Veröffentlicht in: | Australian journal of plant physiology 2000, Vol.27 (10), p.899-910 |
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| creator | Dreccer, M.F Schapendonk, H.C.M Oijen, M. van Pot, C.S Rabbinge, R |
| description | During the critical period for grain number definition, the amount of biomass produced per unit absorbed radiation is more sensitive to nitrogen (N) supply in oilseed rape than in wheat, and reaches a higher value at high N. This response was investigated by combining experimental and modelling work. Oilseed rape and wheat were grown at three levels of N supply, combined with two levels of plant density at high N supply. Canopy photosynthesis and daytime radiation use efficiency ( RUE A ) were calculated with a model based on observed N-dependent leaf photosynthesis and observed canopy vertical distribution of light and leaf N. In oilseed rape, RUE A was higher than in wheat and, in contrast to wheat, the sensitivity to canopy leaf N content increased from the start to the end of the critical period. These results were partly explained by the higher leaf photosynthesis in oilseed rape vs wheat. In addition, oilseed rape leaves were increasingly shaded by the inflorescence. Thus, RUE A increased because more leaves were operating at non-saturating light levels. In both species, the vertical distribution of leaf N was close to that optimising canopy photosynthesis. The results are discussed in relation to possibilities for improvement of N productivity in these crops. Keywords: leaf photosynthesis, nitrogen use efficiency, oilseed rape, period of grain number definition, radiation use efficiency, wheat. Australian Journal of Plant Physiology 27(10) 899 - 910 Full text doi:10.1071/PP00019 © CSIRO 2000 |
| doi_str_mv | 10.1071/PP00019 |
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Lab. of Theoretical Production Ecology</creatorcontrib><description>During the critical period for grain number definition, the amount of biomass produced per unit absorbed radiation is more sensitive to nitrogen (N) supply in oilseed rape than in wheat, and reaches a higher value at high N. This response was investigated by combining experimental and modelling work. Oilseed rape and wheat were grown at three levels of N supply, combined with two levels of plant density at high N supply. Canopy photosynthesis and daytime radiation use efficiency ( RUE A ) were calculated with a model based on observed N-dependent leaf photosynthesis and observed canopy vertical distribution of light and leaf N. In oilseed rape, RUE A was higher than in wheat and, in contrast to wheat, the sensitivity to canopy leaf N content increased from the start to the end of the critical period. These results were partly explained by the higher leaf photosynthesis in oilseed rape vs wheat. In addition, oilseed rape leaves were increasingly shaded by the inflorescence. Thus, RUE A increased because more leaves were operating at non-saturating light levels. In both species, the vertical distribution of leaf N was close to that optimising canopy photosynthesis. The results are discussed in relation to possibilities for improvement of N productivity in these crops. Keywords: leaf photosynthesis, nitrogen use efficiency, oilseed rape, period of grain number definition, radiation use efficiency, wheat. Australian Journal of Plant Physiology 27(10) 899 - 910 Full text doi:10.1071/PP00019 © CSIRO 2000</description><identifier>ISSN: 0310-7841</identifier><identifier>ISSN: 1445-4408</identifier><identifier>EISSN: 1445-4416</identifier><identifier>EISSN: 1446-5655</identifier><identifier>DOI: 10.1071/PP00019</identifier><identifier>CODEN: AJPPCH</identifier><language>eng</language><publisher>Collingwood: Commonwealth Scientific and Industrial Research Organization</publisher><subject>ABONOS NITROGENADOS ; Agricultural and forest climatology and meteorology. Irrigation. Drainage ; Agricultural and forest meteorology ; Agronomy. Soil science and plant productions ; APPLICATION RATES ; Biological and medical sciences ; BIOMASS PRODUCTION ; BRASSICA NAPUS VAR. OLEIFERA ; CANOPY ; CONTENIDO DE NITROGENO ; COUVERT ; Crop climate. Energy and radiation balances ; CUBIERTA DE COPAS ; DOSE D'APPLICATION ; DOSIS DE APLICACION ; ENGRAIS AZOTE ; FEUILLE ; FOTOSINTESIS ; Fundamental and applied biological sciences. Psychology ; General agronomy. Plant production ; HOJAS ; LEAVES ; Leerstoelgroep Plantaardige productiesystemen ; LIGHT ; LUMIERE ; LUZ ; MATHEMATICAL MODELS ; MODELE MATHEMATIQUE ; MODELOS MATEMATICOS ; NITROGEN CONTENT ; NITROGEN FERTILIZERS ; PE&RC ; PHOTOSYNTHESE ; PHOTOSYNTHESIS ; PLANT POPULATION ; Plant Production Systems ; Plant Research International ; Plantaardige Productiesystemen ; POBLACION VEGETAL ; POPULATION VEGETALE ; RADIACION SOLAR ; RADIATION SOLAIRE ; SOLAR RADIATION ; TENEUR EN AZOTE ; TRITICUM AESTIVUM</subject><ispartof>Australian journal of plant physiology, 2000, Vol.27 (10), p.899-910</ispartof><rights>2000 INIST-CNRS</rights><rights>Wageningen University & Research</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c370t-e3401ce9055b653564763d2cf2917bf7ff6792a015ef44216f8edbc450d4adaf3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,315,782,786,887,3352,3353,4026,27930,27931,27932</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1500586$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Dreccer, M.F</creatorcontrib><creatorcontrib>Schapendonk, H.C.M</creatorcontrib><creatorcontrib>Oijen, M. van</creatorcontrib><creatorcontrib>Pot, C.S</creatorcontrib><creatorcontrib>Rabbinge, R</creatorcontrib><creatorcontrib>Wageningen Univ. and Research Center (Netherlands). Lab. of Theoretical Production Ecology</creatorcontrib><title>Radiation and nitrogen use at the leaf and canopy level by wheat and oilseed rape during the critical period for grain number definition</title><title>Australian journal of plant physiology</title><description>During the critical period for grain number definition, the amount of biomass produced per unit absorbed radiation is more sensitive to nitrogen (N) supply in oilseed rape than in wheat, and reaches a higher value at high N. This response was investigated by combining experimental and modelling work. Oilseed rape and wheat were grown at three levels of N supply, combined with two levels of plant density at high N supply. Canopy photosynthesis and daytime radiation use efficiency ( RUE A ) were calculated with a model based on observed N-dependent leaf photosynthesis and observed canopy vertical distribution of light and leaf N. In oilseed rape, RUE A was higher than in wheat and, in contrast to wheat, the sensitivity to canopy leaf N content increased from the start to the end of the critical period. These results were partly explained by the higher leaf photosynthesis in oilseed rape vs wheat. In addition, oilseed rape leaves were increasingly shaded by the inflorescence. Thus, RUE A increased because more leaves were operating at non-saturating light levels. In both species, the vertical distribution of leaf N was close to that optimising canopy photosynthesis. The results are discussed in relation to possibilities for improvement of N productivity in these crops. Keywords: leaf photosynthesis, nitrogen use efficiency, oilseed rape, period of grain number definition, radiation use efficiency, wheat. Australian Journal of Plant Physiology 27(10) 899 - 910 Full text doi:10.1071/PP00019 © CSIRO 2000</description><subject>ABONOS NITROGENADOS</subject><subject>Agricultural and forest climatology and meteorology. Irrigation. Drainage</subject><subject>Agricultural and forest meteorology</subject><subject>Agronomy. Soil science and plant productions</subject><subject>APPLICATION RATES</subject><subject>Biological and medical sciences</subject><subject>BIOMASS PRODUCTION</subject><subject>BRASSICA NAPUS VAR. OLEIFERA</subject><subject>CANOPY</subject><subject>CONTENIDO DE NITROGENO</subject><subject>COUVERT</subject><subject>Crop climate. Energy and radiation balances</subject><subject>CUBIERTA DE COPAS</subject><subject>DOSE D'APPLICATION</subject><subject>DOSIS DE APLICACION</subject><subject>ENGRAIS AZOTE</subject><subject>FEUILLE</subject><subject>FOTOSINTESIS</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General agronomy. Plant production</subject><subject>HOJAS</subject><subject>LEAVES</subject><subject>Leerstoelgroep Plantaardige productiesystemen</subject><subject>LIGHT</subject><subject>LUMIERE</subject><subject>LUZ</subject><subject>MATHEMATICAL MODELS</subject><subject>MODELE MATHEMATIQUE</subject><subject>MODELOS MATEMATICOS</subject><subject>NITROGEN CONTENT</subject><subject>NITROGEN FERTILIZERS</subject><subject>PE&RC</subject><subject>PHOTOSYNTHESE</subject><subject>PHOTOSYNTHESIS</subject><subject>PLANT POPULATION</subject><subject>Plant Production Systems</subject><subject>Plant Research International</subject><subject>Plantaardige Productiesystemen</subject><subject>POBLACION VEGETAL</subject><subject>POPULATION VEGETALE</subject><subject>RADIACION SOLAR</subject><subject>RADIATION SOLAIRE</subject><subject>SOLAR RADIATION</subject><subject>TENEUR EN AZOTE</subject><subject>TRITICUM AESTIVUM</subject><issn>0310-7841</issn><issn>1445-4408</issn><issn>1445-4416</issn><issn>1446-5655</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNp9kM1u1DAUhS1EJYaCeAGQvEBiFbATO06WqCoUaQRV1a6tG_9MjVI7uk46zBvw2DidUZesrqz7nXN8LiHvOPvMmeJfrq8ZY7x_QTZcCFkJwduXZMMazirVCf6KvM75dyFkU6sN-XsDNsAcUqQQLY1hxrRzkS7ZUZjpfO_o6MA_LQ3ENB3K-9GNdDjQ_b0ryLpJYczOWYowOWoXDHH3JDUY5mBgpJPDkCz1CekOIUQal4fBIbXOh5JZ4t-QMw_F5e1pnpO7b5e3F1fV9tf3Hxdft5VpFJsr1wjGjeuZlEMrG9kK1Ta2Nr7uuRq88r5VfQ2lnvNC1Lz1nbODEZJZARZ8c076o-8eSs_yURd1BDQh6wRBj2FAwIPeL6jjuI5pGbJuhVBd0X46ag2mnNF5PWF4WHHO9Hp8fTp-IT8eyQly6e8R4prwjEvGZNcW7MMR85A07LAgP7d1cWCs7vrVhp4Cc8D0LD-l6PnPXJD3_0Gaf7Q7pCQ</recordid><startdate>2000</startdate><enddate>2000</enddate><creator>Dreccer, M.F</creator><creator>Schapendonk, H.C.M</creator><creator>Oijen, M. van</creator><creator>Pot, C.S</creator><creator>Rabbinge, R</creator><general>Commonwealth Scientific and Industrial Research Organization</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>QVL</scope></search><sort><creationdate>2000</creationdate><title>Radiation and nitrogen use at the leaf and canopy level by wheat and oilseed rape during the critical period for grain number definition</title><author>Dreccer, M.F ; Schapendonk, H.C.M ; Oijen, M. van ; Pot, C.S ; Rabbinge, R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c370t-e3401ce9055b653564763d2cf2917bf7ff6792a015ef44216f8edbc450d4adaf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>ABONOS NITROGENADOS</topic><topic>Agricultural and forest climatology and meteorology. Irrigation. Drainage</topic><topic>Agricultural and forest meteorology</topic><topic>Agronomy. Soil science and plant productions</topic><topic>APPLICATION RATES</topic><topic>Biological and medical sciences</topic><topic>BIOMASS PRODUCTION</topic><topic>BRASSICA NAPUS VAR. OLEIFERA</topic><topic>CANOPY</topic><topic>CONTENIDO DE NITROGENO</topic><topic>COUVERT</topic><topic>Crop climate. Energy and radiation balances</topic><topic>CUBIERTA DE COPAS</topic><topic>DOSE D'APPLICATION</topic><topic>DOSIS DE APLICACION</topic><topic>ENGRAIS AZOTE</topic><topic>FEUILLE</topic><topic>FOTOSINTESIS</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General agronomy. Plant production</topic><topic>HOJAS</topic><topic>LEAVES</topic><topic>Leerstoelgroep Plantaardige productiesystemen</topic><topic>LIGHT</topic><topic>LUMIERE</topic><topic>LUZ</topic><topic>MATHEMATICAL MODELS</topic><topic>MODELE MATHEMATIQUE</topic><topic>MODELOS MATEMATICOS</topic><topic>NITROGEN CONTENT</topic><topic>NITROGEN FERTILIZERS</topic><topic>PE&RC</topic><topic>PHOTOSYNTHESE</topic><topic>PHOTOSYNTHESIS</topic><topic>PLANT POPULATION</topic><topic>Plant Production Systems</topic><topic>Plant Research International</topic><topic>Plantaardige Productiesystemen</topic><topic>POBLACION VEGETAL</topic><topic>POPULATION VEGETALE</topic><topic>RADIACION SOLAR</topic><topic>RADIATION SOLAIRE</topic><topic>SOLAR RADIATION</topic><topic>TENEUR EN AZOTE</topic><topic>TRITICUM AESTIVUM</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dreccer, M.F</creatorcontrib><creatorcontrib>Schapendonk, H.C.M</creatorcontrib><creatorcontrib>Oijen, M. van</creatorcontrib><creatorcontrib>Pot, C.S</creatorcontrib><creatorcontrib>Rabbinge, R</creatorcontrib><creatorcontrib>Wageningen Univ. and Research Center (Netherlands). Lab. of Theoretical Production Ecology</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>NARCIS:Publications</collection><jtitle>Australian journal of plant physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dreccer, M.F</au><au>Schapendonk, H.C.M</au><au>Oijen, M. van</au><au>Pot, C.S</au><au>Rabbinge, R</au><aucorp>Wageningen Univ. and Research Center (Netherlands). Lab. of Theoretical Production Ecology</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Radiation and nitrogen use at the leaf and canopy level by wheat and oilseed rape during the critical period for grain number definition</atitle><jtitle>Australian journal of plant physiology</jtitle><date>2000</date><risdate>2000</risdate><volume>27</volume><issue>10</issue><spage>899</spage><epage>910</epage><pages>899-910</pages><issn>0310-7841</issn><issn>1445-4408</issn><eissn>1445-4416</eissn><eissn>1446-5655</eissn><coden>AJPPCH</coden><abstract>During the critical period for grain number definition, the amount of biomass produced per unit absorbed radiation is more sensitive to nitrogen (N) supply in oilseed rape than in wheat, and reaches a higher value at high N. This response was investigated by combining experimental and modelling work. Oilseed rape and wheat were grown at three levels of N supply, combined with two levels of plant density at high N supply. Canopy photosynthesis and daytime radiation use efficiency ( RUE A ) were calculated with a model based on observed N-dependent leaf photosynthesis and observed canopy vertical distribution of light and leaf N. In oilseed rape, RUE A was higher than in wheat and, in contrast to wheat, the sensitivity to canopy leaf N content increased from the start to the end of the critical period. These results were partly explained by the higher leaf photosynthesis in oilseed rape vs wheat. In addition, oilseed rape leaves were increasingly shaded by the inflorescence. Thus, RUE A increased because more leaves were operating at non-saturating light levels. In both species, the vertical distribution of leaf N was close to that optimising canopy photosynthesis. The results are discussed in relation to possibilities for improvement of N productivity in these crops. Keywords: leaf photosynthesis, nitrogen use efficiency, oilseed rape, period of grain number definition, radiation use efficiency, wheat. Australian Journal of Plant Physiology 27(10) 899 - 910 Full text doi:10.1071/PP00019 © CSIRO 2000</abstract><cop>Collingwood</cop><pub>Commonwealth Scientific and Industrial Research Organization</pub><doi>10.1071/PP00019</doi><tpages>12</tpages></addata></record> |
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| ispartof | Australian journal of plant physiology, 2000, Vol.27 (10), p.899-910 |
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| recordid | cdi_fao_agris_NL2001002899 |
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| subjects | ABONOS NITROGENADOS Agricultural and forest climatology and meteorology. Irrigation. Drainage Agricultural and forest meteorology Agronomy. Soil science and plant productions APPLICATION RATES Biological and medical sciences BIOMASS PRODUCTION BRASSICA NAPUS VAR. OLEIFERA CANOPY CONTENIDO DE NITROGENO COUVERT Crop climate. Energy and radiation balances CUBIERTA DE COPAS DOSE D'APPLICATION DOSIS DE APLICACION ENGRAIS AZOTE FEUILLE FOTOSINTESIS Fundamental and applied biological sciences. Psychology General agronomy. Plant production HOJAS LEAVES Leerstoelgroep Plantaardige productiesystemen LIGHT LUMIERE LUZ MATHEMATICAL MODELS MODELE MATHEMATIQUE MODELOS MATEMATICOS NITROGEN CONTENT NITROGEN FERTILIZERS PE&RC PHOTOSYNTHESE PHOTOSYNTHESIS PLANT POPULATION Plant Production Systems Plant Research International Plantaardige Productiesystemen POBLACION VEGETAL POPULATION VEGETALE RADIACION SOLAR RADIATION SOLAIRE SOLAR RADIATION TENEUR EN AZOTE TRITICUM AESTIVUM |
| title | Radiation and nitrogen use at the leaf and canopy level by wheat and oilseed rape during the critical period for grain number definition |
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