Foliar application of calcium and magnesium improves growth, yield, and essential oil yield of oregano (Origanum vulgare ssp hirtum)
Foliar application of calcium and magnesium improves growth, yield, and essential oil yield of oregano (Origanum vulgare ssp hirtum)
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DOI：
10.1016/j.indcrop.2008.11.004
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发表时间：
2009-03-01
影响因子：
5.9
通讯作者：
Dordas, Christos
中科院分区：
文献类型：
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作者：
Dordas, Christos
牛至是最重要的香料之一，在世界各地使用，包括许多物种。最重要的商业种植物种之一是牛至（Origanum vulgare ssp.）hirtum（Link）letsw（syn.：O. Heracleoticum.），是地中海地区特有的O. vulgare ssp. hirtum是一种很好地适应旱地条件和石灰性土壤的作物品种。本研究的目的是确定叶面呼叫和Mg 2+的应用对生长，产量，精油含量和牛至精油产量的影响。五个处理（0，0.5%的钙，1%的钙，1%的镁，2%的镁），并在两个地点重复实验超过两个生长期（2005年和2006年）在北方希腊的桑迪壤土和桑迪粘土。叶面喷施Ca ~（2+）和Mg ~（2+）可增加叶片中Ca ~（2+）和Mg ~（2+）的含量。Ca 2+和Me的施用影响了株高，因为对照处理的植株较矮，而Ca 2+和Mg 2+的施用在2年期间和两个地点与对照相比平均增加了10%。此外，Ca 2+和Mg 2+的应用程序增加了茎每株植物的平均23%，在这两年和两个地点。叶绿素浓度受Ca 2+和Mg 2+的影响，随后与对照相比，Ca 2+和Mg 2+分别平均增加23%和38%。与对照相比，施用Ca 2+和Mg 2+使牛至植物开花所需的天数平均减少3-4天。干物质产量也增加了22%，与Ca 2+和Mg 2+在2年的研究，并在这两个位置相比，对照处理。此外，Ca ~（2+）和Mg ~（2+）的施用对精油产量有一定影响，但对精油含量无明显影响。这些结果表明，Ca 2+和Me 2+的应用可以影响牛至的生长和产量，特别是当植物生长在酸性土壤中时。然而，这种效应的生理基础仍然未知。(C)2008 Elsevier B.V保留所有权利。
Oregano is one of the most important spices, is used all over the world, and includes many species. One of the most important commercially grown species is Origanum vulgare ssp. hirtum (Link) letsw (syn.: O. heracleoticum.), which is endemic to the Mediterranean area. O. vulgare ssp. hirtum is a crop species which is well adapted to both dry land conditions and calcareous soils. The objectives of this study were to determine the effects of foliar Call and Mg2+ applications on growth, yield, essential oil content, and essential oil yield of oregano. Five treatments (0, 0.5% Ca, 1% Ca, 1% Mg, and 2% Mg) were used, and the experiment was repeated at two locations over two growth periods (2005 and 2006) in northern Greece in a sandy loam and sandy clay soil. Foliar applications with Ca2+ and Mg2+ increased the Ca2+ and Mg2+ concentration of the leaves. Ca2+ and Me, applications affected plant height as the plants were shorter in the control treatment and increased with Ca2+ and Mg2+ applications by an average of 10% during the 2-year period and at the both locations compared with the control. Also, Ca2+ and Mg2+ applications increased the number of stems per plant by an average of 23% in both years and at both locations. Chlorophyll concentration was affected by Ca2+ and Mg2+ applications and subsequently increased an average of 23% with Ca2+ and 38% with Mg2+ compared with the control. Applications of Ca2+ and Mg2+ decreased the number of days required for oregano plants to flower by an average of 3-4 days compared with the control. Dry matter yield also increased 22% with Ca2+ and Mg2+ during the 2-year study and at both locations compared with the control treatment. In addition, the Ca2+ and Mg2+ applications affected the essential oil yield, but they did not affect the essential oil content. These results show that Ca2+ and Me2+ applications can affect the growth and yield of oregano, especially when the plant is grown in acid soils. However, the physiological basis of this effect remains unknown. (C) 2008 Elsevier B.V All rights reserved.