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Is N-resorption efficiency related to secondary compounds and leaf longevity in coexisting plant species of the arid Patagonian Monte, Argentina?
(Wiley Blackwell Publishing, Inc, 2011)
Maize senescence under contrasting source-sink ratios during the grain filling period
(Pergamon-Elsevier Science Ltd, 2020-12)
Grain growth and leaf senescence are the main processes during post-silking in maize. An unanswered question is how changes in sink strength (the number of grains to be filled) affect leaf senescence. We studied the effect ...
Using phenological cameras to track the green up in a cerrado savanna and its on-the-ground validation
(Elsevier B.V., 2014-01-01)
Plant phenology has gained new importance in the context of global change research, stimulating the development of novel technologies for phenological observations. Regular digital cameras have been effectively used as ...
Plant phenology, leaf traits and leaf litterfall of contrasting life forms in the arid Patagonian Monte, Argentina
(Wiley Blackwell Publishing, Inc, 2008-02)
Question: Do coexisting plant life forms differ in overall phenology, leaf traits and patterns of leaf litterfall? Location: Patagonian Monte, Chubut Province, Argentina. Methods: We assessed phenology, traits of green and ...
Leaf senescence and the profile of expanded leaf area in maize (Zea mays L.)
(University of Guelph, 2002-08)
Leaf senescence is a major factor affecting light interception and dry matter accumulation during the grain-filling period. Reduced leaf senescence has been associated with maize yield genetic improvement. The objectives ...
Estimativa da área foliar de Crotalaria juncea L. a partir de dimensões lineares do limbo foliar
(2011-11-01)
Knowledge of the leaf area plant are needed for agronomic and physiological studies involving plant growth. The aim of this study was to obtain a mathematical model using linear measures of leaf dimensions, which will allow ...
Sunflower Leaf Senescence: A Complex Genetic Process with Economic Impact on Crop Production
(IntechOpen, 2017)
Leaf senescence is a complex process controlled by multiple genetic and environmental variables. In different crops, a delay in leaf senescence has an important impact on grain yield trough the maintenance of the photosynthetic ...
Leaf protein allocation across the canopy and during senescence in earlier and later senescing maize hybrids, and implications for the use of chlorophyll as a proxy of leaf N
(Springer Heidelberg, 2019-08-01)
Leaf chlorophyll (chl) and protein distribution were analyzed throughout grain flling in four modern maize hybrids with contrasting senescence behavior, at three diferent canopy levels and at low-N (LN, 18 kg N ha−1) and ...
Cytokinins: A key player in determining differences in patterns of canopy senescence in Stay-Green and Fast Dry-Down sunflower (Helianthus annuus L.) hybrids
(Elsevier Science, 2017-05)
Leaf senescence during grain filling can reduce crop yield. We studied, under field conditions and during grain-filling, the association between leaf cytokinin levels and the onset of leaf senescence in sunflower hybrids ...