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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >Effects of Different Nitrogen Doses and Row Spacing Applications on Yield and Quality of Oenothera biennis L. Grown in Irrigated Lowland and Unirrigated Dryland Conditions
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Effects of Different Nitrogen Doses and Row Spacing Applications on Yield and Quality of Oenothera biennis L. Grown in Irrigated Lowland and Unirrigated Dryland Conditions

机译：氮素用量和行距施用对旱地和旱地种植月见草产量和品质的影响。

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Common evening primrose (Oenothera biennis L., Onagraceae) is a biennial herbaceous forb. It is commercially cultivated in over 15 countries for its seed oil, which contains the essential fatty acids, linoleic and gamma-linolenic acid. The present study was carried out to determine the effects of different nitrogen doses (0, 60, 120 and 180 kg ha-1) and row spacing applications (20, 40 and 60 cm) on yield and quality of Oenothera biennis L. grown in irrigated lowland and unirrigated dryland in the Gukurova conditions region in 2000 and 2001. The field trials were arranged in split-split-plot design with 3 replicates. Some plant and technological traits of evening primrose such as plant height, the number of branches, the number of capsules in the main branch, biological and seed yields, seed crude oil content, seed oil linoleic and gamma-linolenic acid contents were studied. The biological and seed yields of Oenothera biennis L. varied with different growing areas, and the highest values were obtained under irrigated lowland conditions in both experimental years. For the highest yield and quality, the optimum applications were 120 kg ha-1 nitrogen and 40 cm row spacing. The seed yields changed between 750 and 7617 kg ha-1 according to different agricultural techniques. Because of the higher temperature during the vegetation period in the Gukurova region, the content of g-linolenic acid of the seed oil was lower than the normal ranges reported, and varied between 3.04% and 5.98%. Furthermore, the higher doses of nitrogen fertilization affected the g-linolenic acid content negatively
机译：常见的月见草（Oenothera biennis L.，Onagraceae）是一种两年生的草本植物。它的种子油在15个以上国家/地区进行了商业种植，其中包含必需脂肪酸，亚油酸和γ-亚麻酸。进行本研究以确定不同氮素剂量（0、60、120和180 kg ha-1）和行距施用（20、40和60 cm）对种植于月见草的月见草的产量和品质的影响。于2000年和2001年在古库洛娃条件地区的低地和未灌溉旱地上进行了灌溉。田间试验按分裂-样地设计进行，重复了3次。研究了月见草的一些植物和技术特性，例如植物高度，枝条数，主枝中的荚膜数，生物学和种子产量，种子原油含量，种子油中亚油酸和γ-亚麻酸含量。月见草的生物学和种子产量随生长区域的不同而变化，并且在两个试验年中在灌溉的低地条件下均获得最高值。为了获得最高的产量和质量，最佳的应用是120 kg ha-1氮和40 cm行距。根据不同的农业技术，种子产量在750至7617 kg ha-1之间变化。由于古库洛娃地区植被期的高温，种子油中的亚麻酸含量低于报道的正常范围，在3.04％至5.98％之间变化。此外，较高的氮肥用量对g-亚麻酸含量有负面影响

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