Petracca F, Arena C, Cirillo C, de Micco V
University of Naples Federico II, Department of Agricultural Sciences, 80055 Portici, Naples, Italy.
University of Naples Federico II, Department of Biology, 80126 Naples, Italy.
Photosynthetica. 2023 May 15;61(2):244-249. doi: 10.32615/ps.2023.013. eCollection 2023.
In many crops, including grapevine, the distribution of reflecting dust on foliage is a practice potentially leading to the mitigation of environmental stresses such as excessive light and limited water supply. This study aimed to evaluate whether the presence of dust on the leaves may affect PSII photochemical efficiency and gas-exchange measurements, thus leading to biased results. The study was conducted in a winery located at Benevento (Italy) on L. subsp. 'Falanghina' where the application of basalt dust was tested on the canopy to alleviate the effects of water stress. The results showed that there is no difference in PSII photochemistry or gas-exchange parameters measured in the presence of dust or after cleaning the leaves. Therefore, we conclude there is no need to remove dust from leaves before performing the ecophysiological investigations, thus fastening and simplifying the data collection.
在包括葡萄树在内的许多作物中，在叶片上分布反光尘埃是一种可能有助于缓解诸如光照过强和供水受限等环境压力的做法。本研究旨在评估叶片上存在尘埃是否会影响PSII光化学效率和气体交换测量结果，从而导致结果出现偏差。该研究在意大利贝内文托的一家酒庄对亚种“法兰吉娜”进行，在树冠上测试了玄武岩尘埃的施用，以减轻水分胁迫的影响。结果表明，在有尘埃存在时或清洁叶片后测量的PSII光化学或气体交换参数没有差异。因此，我们得出结论，在进行生态生理调查之前无需去除叶片上的尘埃，从而加快并简化数据收集工作。
