Limitations to photosynthesis of leaves of apple (Malus domestica) trees across the growing season prior to and after harvest
Photosynthetic responses to CO2 were followed on leaves of Malus domestica cv. Cox's Orange trees growing in orchard conditions, before and after harvest. Rates of photosynthesis, at ambient and CO2 saturated concentrations, were stable across the growing season, except for minor decreases at h...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of the Czech Republic, Institute of Experimental Botany
2019-05-01
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| Series: | Photosynthetica |
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| Online Access: | https://ps.ueb.cas.cz/artkey/phs-201902-0014_limitations-to-photosynthesis-of-leaves-of-apple-malus-domestica-trees-across-the-growing-season-prior-to-and.php |
| _version_ | 1811224577984954368 |
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| author | D.H. GREER |
| author_facet | D.H. GREER |
| author_sort | D.H. GREER |
| collection | DOAJ |
| description | Photosynthetic responses to CO2 were followed on leaves of Malus domestica cv. Cox's Orange trees growing in orchard conditions, before and after harvest. Rates of photosynthesis, at ambient and CO2 saturated concentrations, were stable across the growing season, except for minor decreases at harvest although rates recovered and remained high thereafter. Stomatal conductance increased over the growing season but declined transiently just before harvest and recovered for most of the season. Rates of ribulose-1,5-bisphosphate (RuBP) carboxylation declined before harvest, however, rates of RuBP regeneration mirrored assimilation. After harvest, rates of RuBP regeneration increased whereas rates of carboxylation increased but remained low, limiting photosynthesis. Lack of change in photosynthesis after harvest was at odds with the literature where photosynthesis of high crop load trees declined soon after, suggesting crop load was not as demanding on the Cox's Orange trees as in other studies. |
| first_indexed | 2024-04-12T08:50:16Z |
| format | Article |
| id | doaj.art-281d71acc642407d8244e6e7434299cf |
| institution | Directory Open Access Journal |
| issn | 0300-3604 1573-9058 |
| language | English |
| last_indexed | 2024-04-12T08:50:16Z |
| publishDate | 2019-05-01 |
| publisher | Academy of Sciences of the Czech Republic, Institute of Experimental Botany |
| record_format | Article |
| series | Photosynthetica |
| spelling | doaj.art-281d71acc642407d8244e6e7434299cf2022-12-22T03:39:35ZengAcademy of Sciences of the Czech Republic, Institute of Experimental BotanyPhotosynthetica0300-36041573-90582019-05-0157248349010.32615/ps.2019.063phs-201902-0014Limitations to photosynthesis of leaves of apple (Malus domestica) trees across the growing season prior to and after harvestD.H. GREER0National Wine and Grape Industry Centre, School of Agricultural and Wine Sciences, Charles Sturt University, Locked Bag 588, Wagga Wagga, NSW, AustraliaPhotosynthetic responses to CO2 were followed on leaves of Malus domestica cv. Cox's Orange trees growing in orchard conditions, before and after harvest. Rates of photosynthesis, at ambient and CO2 saturated concentrations, were stable across the growing season, except for minor decreases at harvest although rates recovered and remained high thereafter. Stomatal conductance increased over the growing season but declined transiently just before harvest and recovered for most of the season. Rates of ribulose-1,5-bisphosphate (RuBP) carboxylation declined before harvest, however, rates of RuBP regeneration mirrored assimilation. After harvest, rates of RuBP regeneration increased whereas rates of carboxylation increased but remained low, limiting photosynthesis. Lack of change in photosynthesis after harvest was at odds with the literature where photosynthesis of high crop load trees declined soon after, suggesting crop load was not as demanding on the Cox's Orange trees as in other studies.https://ps.ueb.cas.cz/artkey/phs-201902-0014_limitations-to-photosynthesis-of-leaves-of-apple-malus-domestica-trees-across-the-growing-season-prior-to-and.phpco2 response; gas exchange; nonstomatal limitation; post-harvest; pre-harvest; stomatal limitation. |
| spellingShingle | D.H. GREER Limitations to photosynthesis of leaves of apple (Malus domestica) trees across the growing season prior to and after harvest Photosynthetica co2 response; gas exchange; nonstomatal limitation; post-harvest; pre-harvest; stomatal limitation. |
| title | Limitations to photosynthesis of leaves of apple (Malus domestica) trees across the growing season prior to and after harvest |
| title_full | Limitations to photosynthesis of leaves of apple (Malus domestica) trees across the growing season prior to and after harvest |
| title_fullStr | Limitations to photosynthesis of leaves of apple (Malus domestica) trees across the growing season prior to and after harvest |
| title_full_unstemmed | Limitations to photosynthesis of leaves of apple (Malus domestica) trees across the growing season prior to and after harvest |
| title_short | Limitations to photosynthesis of leaves of apple (Malus domestica) trees across the growing season prior to and after harvest |
| title_sort | limitations to photosynthesis of leaves of apple malus domestica trees across the growing season prior to and after harvest |
| topic | co2 response; gas exchange; nonstomatal limitation; post-harvest; pre-harvest; stomatal limitation. |
| url | https://ps.ueb.cas.cz/artkey/phs-201902-0014_limitations-to-photosynthesis-of-leaves-of-apple-malus-domestica-trees-across-the-growing-season-prior-to-and.php |
| work_keys_str_mv | AT dhgreer limitationstophotosynthesisofleavesofapplemalusdomesticatreesacrossthegrowingseasonpriortoandafterharvest |