Leaf blade dimensions of rice (Oryza sativa L. and Oryza glaberrima Steud.). Relationships between tillers and the main stem
The effects of genotype and environment on the leaf area index of rice are well documented, but the rules governing leaf area distribution among main stem and tillers are less well understood. This study investigated the ontogenetic patterns of leaf blade area and dimensions on the main stem and tillers of three rice cultivars, IAC47, Javaé (Oryza sativa L.) and CG14 (O. glaberrima Steud.) grown in pots without competition among plants. No differences in phyllochron were observed among culms, but leaves on tillers appeared 0.5 to 0.8 phyllochrons earlier than the genealogically corresponding leaves on the main stem (system of Katayama). Cohorts were thus not fully synchronized. All culms produced their largest leaves soon after panicle initiation (PI), despite differences in tiller age. Leaves that appeared subsequently were smaller owing to reduced length but not width, which remained constant. Three different hypothetical rules governing the behaviour of culms were tested: (1) tillers behave as clones of the main stem; (2) cohorts behave uniformly, and (3) behaviour is determined by leaf position (sum of genealogical leaf and tiller indices). The results were best explained by hypotheses (2) and (3), with leaf blade width and length showing markedly different patterns.
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Subjects: | F62 - Physiologie végétale - Croissance et développement, Oryza sativa, feuille, Oryza glaberrima, surface foliaire, indice de surface foliaire, développement biologique, variété, http://aims.fao.org/aos/agrovoc/c_5438, http://aims.fao.org/aos/agrovoc/c_4243, http://aims.fao.org/aos/agrovoc/c_5436, http://aims.fao.org/aos/agrovoc/c_16110, http://aims.fao.org/aos/agrovoc/c_35196, http://aims.fao.org/aos/agrovoc/c_921, http://aims.fao.org/aos/agrovoc/c_8157, |
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dig-cirad-fr-4846142024-01-28T09:48:51Z http://agritrop.cirad.fr/484614/ http://agritrop.cirad.fr/484614/ Leaf blade dimensions of rice (Oryza sativa L. and Oryza glaberrima Steud.). Relationships between tillers and the main stem. Tivet Florent, Da Silveira Pinheiro B., De Raïssac Marcel, Dingkuhn Michaël. 2001. Annals of Botany, 88 : 507-511.https://doi.org/10.1006/anbo.2001.1447 <https://doi.org/10.1006/anbo.2001.1447> Leaf blade dimensions of rice (Oryza sativa L. and Oryza glaberrima Steud.). Relationships between tillers and the main stem Tivet, Florent Da Silveira Pinheiro, B. De Raïssac, Marcel Dingkuhn, Michaël eng 2001 Annals of Botany F62 - Physiologie végétale - Croissance et développement Oryza sativa feuille Oryza glaberrima surface foliaire indice de surface foliaire développement biologique variété http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5436 http://aims.fao.org/aos/agrovoc/c_16110 http://aims.fao.org/aos/agrovoc/c_35196 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_8157 The effects of genotype and environment on the leaf area index of rice are well documented, but the rules governing leaf area distribution among main stem and tillers are less well understood. This study investigated the ontogenetic patterns of leaf blade area and dimensions on the main stem and tillers of three rice cultivars, IAC47, Javaé (Oryza sativa L.) and CG14 (O. glaberrima Steud.) grown in pots without competition among plants. No differences in phyllochron were observed among culms, but leaves on tillers appeared 0.5 to 0.8 phyllochrons earlier than the genealogically corresponding leaves on the main stem (system of Katayama). Cohorts were thus not fully synchronized. All culms produced their largest leaves soon after panicle initiation (PI), despite differences in tiller age. Leaves that appeared subsequently were smaller owing to reduced length but not width, which remained constant. Three different hypothetical rules governing the behaviour of culms were tested: (1) tillers behave as clones of the main stem; (2) cohorts behave uniformly, and (3) behaviour is determined by leaf position (sum of genealogical leaf and tiller indices). The results were best explained by hypotheses (2) and (3), with leaf blade width and length showing markedly different patterns. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/484614/1/484614.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1006/anbo.2001.1447 10.1006/anbo.2001.1447 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=168364 info:eu-repo/semantics/altIdentifier/doi/10.1006/anbo.2001.1447 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1006/anbo.2001.1447 |
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F62 - Physiologie végétale - Croissance et développement Oryza sativa feuille Oryza glaberrima surface foliaire indice de surface foliaire développement biologique variété http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5436 http://aims.fao.org/aos/agrovoc/c_16110 http://aims.fao.org/aos/agrovoc/c_35196 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_8157 F62 - Physiologie végétale - Croissance et développement Oryza sativa feuille Oryza glaberrima surface foliaire indice de surface foliaire développement biologique variété http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5436 http://aims.fao.org/aos/agrovoc/c_16110 http://aims.fao.org/aos/agrovoc/c_35196 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_8157 |
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F62 - Physiologie végétale - Croissance et développement Oryza sativa feuille Oryza glaberrima surface foliaire indice de surface foliaire développement biologique variété http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5436 http://aims.fao.org/aos/agrovoc/c_16110 http://aims.fao.org/aos/agrovoc/c_35196 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_8157 F62 - Physiologie végétale - Croissance et développement Oryza sativa feuille Oryza glaberrima surface foliaire indice de surface foliaire développement biologique variété http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5436 http://aims.fao.org/aos/agrovoc/c_16110 http://aims.fao.org/aos/agrovoc/c_35196 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_8157 Tivet, Florent Da Silveira Pinheiro, B. De Raïssac, Marcel Dingkuhn, Michaël Leaf blade dimensions of rice (Oryza sativa L. and Oryza glaberrima Steud.). Relationships between tillers and the main stem |
description |
The effects of genotype and environment on the leaf area index of rice are well documented, but the rules governing leaf area distribution among main stem and tillers are less well understood. This study investigated the ontogenetic patterns of leaf blade area and dimensions on the main stem and tillers of three rice cultivars, IAC47, Javaé (Oryza sativa L.) and CG14 (O. glaberrima Steud.) grown in pots without competition among plants. No differences in phyllochron were observed among culms, but leaves on tillers appeared 0.5 to 0.8 phyllochrons earlier than the genealogically corresponding leaves on the main stem (system of Katayama). Cohorts were thus not fully synchronized. All culms produced their largest leaves soon after panicle initiation (PI), despite differences in tiller age. Leaves that appeared subsequently were smaller owing to reduced length but not width, which remained constant. Three different hypothetical rules governing the behaviour of culms were tested: (1) tillers behave as clones of the main stem; (2) cohorts behave uniformly, and (3) behaviour is determined by leaf position (sum of genealogical leaf and tiller indices). The results were best explained by hypotheses (2) and (3), with leaf blade width and length showing markedly different patterns. |
format |
article |
topic_facet |
F62 - Physiologie végétale - Croissance et développement Oryza sativa feuille Oryza glaberrima surface foliaire indice de surface foliaire développement biologique variété http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_4243 http://aims.fao.org/aos/agrovoc/c_5436 http://aims.fao.org/aos/agrovoc/c_16110 http://aims.fao.org/aos/agrovoc/c_35196 http://aims.fao.org/aos/agrovoc/c_921 http://aims.fao.org/aos/agrovoc/c_8157 |
author |
Tivet, Florent Da Silveira Pinheiro, B. De Raïssac, Marcel Dingkuhn, Michaël |
author_facet |
Tivet, Florent Da Silveira Pinheiro, B. De Raïssac, Marcel Dingkuhn, Michaël |
author_sort |
Tivet, Florent |
title |
Leaf blade dimensions of rice (Oryza sativa L. and Oryza glaberrima Steud.). Relationships between tillers and the main stem |
title_short |
Leaf blade dimensions of rice (Oryza sativa L. and Oryza glaberrima Steud.). Relationships between tillers and the main stem |
title_full |
Leaf blade dimensions of rice (Oryza sativa L. and Oryza glaberrima Steud.). Relationships between tillers and the main stem |
title_fullStr |
Leaf blade dimensions of rice (Oryza sativa L. and Oryza glaberrima Steud.). Relationships between tillers and the main stem |
title_full_unstemmed |
Leaf blade dimensions of rice (Oryza sativa L. and Oryza glaberrima Steud.). Relationships between tillers and the main stem |
title_sort |
leaf blade dimensions of rice (oryza sativa l. and oryza glaberrima steud.). relationships between tillers and the main stem |
url |
http://agritrop.cirad.fr/484614/ http://agritrop.cirad.fr/484614/1/484614.pdf |
work_keys_str_mv |
AT tivetflorent leafbladedimensionsofriceoryzasativalandoryzaglaberrimasteudrelationshipsbetweentillersandthemainstem AT dasilveirapinheirob leafbladedimensionsofriceoryzasativalandoryzaglaberrimasteudrelationshipsbetweentillersandthemainstem AT deraissacmarcel leafbladedimensionsofriceoryzasativalandoryzaglaberrimasteudrelationshipsbetweentillersandthemainstem AT dingkuhnmichael leafbladedimensionsofriceoryzasativalandoryzaglaberrimasteudrelationshipsbetweentillersandthemainstem |
_version_ |
1792495093076197376 |