[Objective] The study aimed at investigating the influence of enhanced UV-B radiation on photosynthesis of grapevine.[Method] The seedlings of Cabernet sauvignon were treated with different intensities of UV-B radiation under outdoor conditions,and then the contents of photosynthetic pigments and flavonoids in leaves were determined by measuring the absorbance of leaves extracts at 663,645,470 and 300 nm,respectively.[Result] The content of photosynthetic pigments in the leaves of grapevine obviously increased with time under the treatments of different enhanced UV-B radiation.Compared with the control,the chlorophyll a,chlorophyll b,total chlorophyll and carotenoid were obviously increased by 5%,2%,4% and 3% in the enhanced UV-B radiation treatment of 10.8 μW/cm2（T1）,and in the treatment of 25.6 μW/cm2（T2） the corresponding levels were subsequently increased by 11%,9%,10% and 7% with a significant increase in the content of chlorophyll a.On the other hand,the flavonoids content in the leaves of grapevine were obviously increased by 13%,9% in T1 and T2.[Conclusion] The grapevine has strong adaptability to UV-B radiation,and appropriate enhanced UV-B radiation couldn＇t decrease the photosynthesis of grapevine leaves.
采用文献计量法对Web of Science(WOS)核心合集和中国知网(CNKI)中1990—2022年数据库有关酿酒葡萄成熟度文献进行可视化分析。结果表明,研究酿酒葡萄成熟度领域的国家主要为西班牙125次、意大利97次、美国93次,国际上University of Adelaide、French National Agriculture Research Institute、University of California是目前领域中最为重要和关键的机构,各机构合作关系较为紧密。国内西北农林科技大学和宁夏大学保持较高发文量,但合作较少,应多加强合作。研究热点主要集中在“酿酒葡萄”“果实品质”“成熟度”“采收期”“气候”“温度”“颜色”等关键词,报道了光照、温度、水肥、气候、采收期等对酿酒葡萄及葡萄酒感官品质、理化指标、酚类物质的影响。
