Alvarenga Ivan C A, Pacheco Fernanda V, Alvarenga Amauri A, Bertolucci Suzan K V, Pinto José Eduardo B P
Laboratório de Cultura de Tecidos e Plantas Medicinais, Departamento de Agricultura, Universidade Federal de Lavras, Caixa Postal 3037, 37200-000 Lavras, MG, Brazil.
Laboratório de Crescimento e Desenvolvimento de Plantas, Departmento de Fisiologia Vegetal, Setor de Biologia, Universidade Federal de Lavras, Caixa Postal 3037, 37200-000 Lavras, MG, Brazil.
An Acad Bras Cienc. 2018 Oct-Dec;90(4):3901-3910. doi: 10.1590/0001-3765201820180092. Epub 2018 Nov 1.
Yarrow (Achillea millefolium L., Asteraceae) is an important medicinal plant used worldwide for its medicinal properties such as the analgesic, antioxidant and anti-inflammatory ones. The aim of this study was to evaluate the growth and production of photosynthetic pigments and of volatile constituents of Achillea millefolium L. under different irrigation depths. The treatments were the application of 55, 110, 220, 440 and 880 mm of water for a period of 110 days. Data were submitted to polynomial regression analysis at 5% probability, while the volatile constituents were analyzed by standard deviation. Different irrigation depths provided quadratic growth responses being the highest dry matter production at the depth of 440 mm. The contents of chlorophyll a, b, total and carotenoids were higher at the lower depth tested (55 mm). The major volatile compounds identified were sabinene, 1,8-cineol, borneol and β-caryophyllene. Increased water availability reduced the complexity of the volatile fraction of essential oil. Thus, it is recommended that the species be cultivated at 440 mm irrigation depth to have a higher production of dry matter and lower variation in the volatile profile of the essential oil.
蓍草（Achillea millefolium L.，菊科）是一种重要的药用植物，因其具有止痛、抗氧化和抗炎等药用特性而在全球范围内被广泛使用。本研究的目的是评估不同灌溉深度下蓍草的生长情况、光合色素和挥发性成分的产生。处理方式为在110天内分别施加55、110、220、440和880毫米的水量。数据以5%的概率进行多项式回归分析，而挥发性成分则通过标准差进行分析。不同的灌溉深度呈现二次生长响应，在440毫米深度时干物质产量最高。叶绿素a、b、总量和类胡萝卜素的含量在测试的较低深度（55毫米）时较高。鉴定出的主要挥发性化合物为桧烯、1,8-桉叶素（1,8- cineol）、冰片和β-石竹烯。水分供应增加降低了精油挥发性成分的复杂性。因此，建议在440毫米的灌溉深度种植该物种，以获得更高的干物质产量和更低的精油挥发性成分变化。
