Littérature scientifique sur le sujet « Winter reddening »
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Articles de revues sur le sujet "Winter reddening"
Hughes, Nicole M. « Winter leaf reddening in ‘evergreen’ species ». New Phytologist 190, no 3 (4 mars 2011) : 573–81. http://dx.doi.org/10.1111/j.1469-8137.2011.03662.x.
Texte intégralHughes, Nicole M., Kaylyn L. Carpenter et Jonathan G. Cannon. « Estimating contribution of anthocyanin pigments to osmotic adjustment during winter leaf reddening ». Journal of Plant Physiology 170, no 2 (janvier 2013) : 230–33. http://dx.doi.org/10.1016/j.jplph.2012.09.006.
Texte intégralSeredin, T. M., A. F. Agafonov, E. V. Baranova, V. V. Shumilina, R. I. Omarov et A. V. Soldatenko. « New grades of onions cultures by selection of federal scientific center of vegetable growing ». Tovaroved prodovolstvennykh tovarov (Commodity specialist of food products), no 9 (1 septembre 2020) : 22–25. http://dx.doi.org/10.33920/igt-01-2009-03.
Texte intégralCarpenter, Kaylyn, Timothy Keidel, Melissa Pihl et Nicole Hughes. « Support for a Photoprotective Function of Winter Leaf Reddening in Nitrogen-Deficient Individuals of Lonicera japonica ». Molecules 19, no 11 (3 novembre 2014) : 17810–28. http://dx.doi.org/10.3390/molecules191117810.
Texte intégralZou, Jiaqi, Zhichao Gong, Zhiyong Liu, Jie Ren et Hui Feng. « Investigation of the Key Genes Associated with Anthocyanin Accumulation during Inner Leaf Reddening in Ornamental Kale (Brassica oleracea L. var. acephala) ». International Journal of Molecular Sciences 24, no 3 (2 février 2023) : 2837. http://dx.doi.org/10.3390/ijms24032837.
Texte intégralNikiforou, Constantinos, Konstantina Zeliou, Velissarios-Phaedon Kytridis, Alexandra Kyzeridou et Yiannis Manetas. « Are red leaf phenotypes more or less fit ? The case of winter leaf reddening in Cistus creticus ». Environmental and Experimental Botany 67, no 3 (janvier 2010) : 509–14. http://dx.doi.org/10.1016/j.envexpbot.2009.09.005.
Texte intégralBella, I. E., et S. Navratil. « Growth losses from winter drying (red belt damage) in lodgepole pine stands on the east slopes of the Rockies in Alberta ». Canadian Journal of Forest Research 17, no 10 (1 octobre 1987) : 1289–92. http://dx.doi.org/10.1139/x87-199.
Texte intégralGuo, Xiaohong, Qianting Liu, Jiaming Du, Yidan Guo, Xiaoyu Hu, Jiangtao Yu, Junqing Bai, Xingang Li et Liping Kou. « X-rays irradiation affects flavonoid synthesis and delays reddening of winter jujube (Zizyphus jujuba Mill. cv. Dalidongzao) during cold storage ». Postharvest Biology and Technology 193 (novembre 2022) : 112048. http://dx.doi.org/10.1016/j.postharvbio.2022.112048.
Texte intégralZeliou, K., Y. Manetas et Y. Petropoulou. « Transient winter leaf reddening in Cistus creticus characterizes weak (stress-sensitive) individuals, yet anthocyanins cannot alleviate the adverse effects on photosynthesis ». Journal of Experimental Botany 60, no 11 (6 mai 2009) : 3031–42. http://dx.doi.org/10.1093/jxb/erp131.
Texte intégralJayangondaperumal, R., M. K. Murari, P. Sivasubramanian, N. Chandrasekar et A. K. Singhvi. « Luminescence dating of fluvial and coastal red sediments in the SE Coast, India, and implications for paleoenvironmental changes and dune reddening ». Quaternary Research 77, no 3 (mai 2012) : 468–81. http://dx.doi.org/10.1016/j.yqres.2012.01.010.
Texte intégralThèses sur le sujet "Winter reddening"
Van, Rooij Mahaut. « Etude du rougissement hivernal du Douglas : entre températures douces & ; formation de glace ». Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2023. http://www.theses.fr/2023UCFA0154.
Texte intégralThe Douglas fir is the first reforestation species in the Auvergne-Rhône-Alpes region and the second in France as a whole, and is of considerable economic importance in France, where 13 million trees are produced each year. Winter reddening affects young Douglas-fir (< 15 years old), affecting up to 80% of the plantation. A reddening tree has no silvicultural future and typically dies within a year after reddening. The objectives of my PhD thesis were to have a better understanding of winter reddening by identifying the climatic parameters that trigger reddening and, more importantly, the physiological mechanism(s) that cause needle reddening.A thorough literature review and bioclimatic analysis were undertaken to identify critical climatic factors. The literature synthesis identified certain climatic conditions characteristic of 'reddening' years, including anticyclonic periods after winter and/or alternating cold and warm periods. Both the literature synthesis and the bioclimatic analysis identified a combination of climatic variables: warm daily temperatures, high daily temperature amplitude, at least moderate wind speeds and relative humidity. However, the freeze-thaw cycles with cold night temperatures did not emerge from the climate analysis, although they are mentioned in the literature.In order to understand how Douglas fir reddens, we first identified gaps in our knowledge of winter reddening and proposed potential mechanisms, either single or interacting, that cause this physiological disorder: 1) winter drought leading to hydraulic failure, 2) photo-oxidative stress, and 3) premature deacclimation. Under controlled conditions, young Douglas fir trees were exposed to winter drought through a temperature differential between roots and canopy (TSOIL < 5°C; TMOY_AIR ~ 14°C). Some of these trees were exposed to light intensities that could induce photooxydative stress (> 1800 PPFD). Cold soil temperatures induced moderate water stress by limiting root water uptake, while warm air temperatures caused water loss at the needle level. However, Douglas fir was able to acclimate to this new environment and even resumed growth. Exposure to high light intensity did not cause irreversible damage to PSII or photooxydative stress. No reddening of the Douglas fir was observed, thus refuting hypothesis 2, but partially supporting hypothesis 1, as the canopy was not exposed to freezing stress. In the field, continuous measurements of young Douglas fir diameter variation were coupled with temperature/humidity measurements from four plots in the Massif Central from December 2020 to June 2023. Spring frosts in April 2021 on deacclimated Douglas fir did not result in needle reddening or cambial damages, thus failing to validate hypothesis 3. Nevertheless, comparison of a asymptomatic winter (2021) with a asymptomatic winter i.e. with winter reddening (2022) revealed significant hydraulic stress generated from the apex, associated with an anticyclone period in January 2022. Hydraulic failure could be exacerbated by daily transpiration, combined with freeze-thaw cycles that increase hydraulic stress, leading to canopy hydraulic failure that could explain needle desiccation and reddening. We therefore favour hypothesis 1, which should be tested under controlled conditions