Claim · model-written summary
Combined warming and water deficit reduced photosynthesis, stomatal conductance and Rubisco carboxylation.
- Taxon
- Panicum maximum Jacq.
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Megathyrsus maximuse1 - Treatment
- wSeT treatmente0
- Outcome
- A , g s , V cmaxe0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“The combined wSeT treatment reduced A , g s , V cmax and the forage quality”
e1“Panicum maximum Jacq. using a temperature‐free air‐controlled enhancement (T‐FACE) system. The wS and eT treatments showed no effects on photosystem II photochemistry. However, wS under ambient temperature decreased net photosynthesis rate ( A ), stomatal conductance ( g s ) and maximum rate of carboxylation of Rubisco ( V cmax ), leading to a reduced starch content in leaves. A 16% reduction in leaf dry mass (LDM) and reduction in forage quality by increasing fibers, reducing crude protein (CP) and decreasing the IVDMD was also observed by effect of wS . Warming under adequate soil moisture ( eT ) significantly increased LDM by 25% but reduced the forage quality, increasing the lignin content and reducing starch, CP and digestibility. The combined wSeT treatment reduced A , g s , V cmax and the forage quality. When compared to control, the lignin content in leaves increased by 43, 28 and 17% in wS , eT and wSeT , respectively”
Title
Eduardo Habermann; Eduardo Augusto Dias de Oliveira; Daniele Ribeiro Contin; et al. Physiologia Plantarum 2018. doi:10.1111/ppl.12891
Other claims from this paper (15)
- Intervention effect Water deficit and warming had no effect on photosystem II photochemistry.
- Intervention effect Water deficit at ambient temperature decreased net photosynthesis, stomatal conductance and Rubisco carboxylation.
- Intervention effect Water deficit reduced leaf starch.
- Intervention effect Water deficit reduced leaf dry mass by 16%.
- Intervention effect Water deficit increased forage fiber.
- Intervention effect Water deficit reduced crude protein.
- Intervention effect Water deficit decreased dry matter digestibility.
- Intervention effect Warming with adequate moisture increased leaf dry mass by 25%.
- Intervention effect Warming increased lignin content.
- Intervention effect Warming reduced starch, crude protein and digestibility.
- Intervention effect Combined warming and water deficit reduced forage quality.
- Intervention effect Water deficit raised leaf lignin by 43% versus control.
- Intervention effect Warming raised leaf lignin by 28% versus control.
- Intervention effect Combined warming and deficit raised leaf lignin by 17% versus control.
- Mechanism Raised lignin caused a significant reduction in dry matter digestibility.