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首页> 外文期刊>Acta Horticulturae >Effects of different irrigation regimes on yield and berry composition of field grown Myrtus communis L. in north-western Sardinia.
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Effects of different irrigation regimes on yield and berry composition of field grown Myrtus communis L. in north-western Sardinia.

机译：撒丁岛西北部不同灌溉方式对田间小白菜产量和浆果组成的影响。

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摘要

Myrtus communis L. is a widely spread Mediterranean native shrub that is nowadays being cultivated to improve berries production aimed to industrial transformation in liqueur. In a three-year trial (2006-2008) myrtle plants cultivar 'Daniela' were irrigated according to different irrigation strategies: (1) no stress (NS, 100% crop evapotranspiration (ETc)), (2) high stress (HS, 25% ETc), (3) medium stress (MS, 50% ETc), (4) low stress (LS, 75% ETc), (5) partial root-zone drying (PRD), 50% ETc where water was applied on only one side of the plant at a time switching water application between plant sides every fifteen days, and (6) farmer self irrigation management (FIM). A randomised block design was carried out, using water saving irrigation as variability factor. The midday stem water potential (mSWP) was used as a water stress indicator. Phenological phases, biometric parameters of berries, yield and berry composition (reducing sugars and anthocyanins) were determined. The main results showed that different water saving irrigation strategies could significantly influence and improve the berries productivity without considerable effects on quality parameters. The severe water reduction of the FIM treatment induced a drastic yield reduction especially in the first year. The mSWP was a reliable plant water stress indicator. HS treatment gave the best water use efficiency result in all years. The open field cropped myrtle should be lightly irrigated, in Sardinian climate, according to a non intensive watering system as HS or MS to guarantee a good yield and vegetative vigour of plants.
机译：Myrtus communis L.是一种分布广泛的地中海原生灌木，如今正在种植以改善旨在利口酒工业转化的浆果产量。在一项为期三年的试验（2006年至2008年）中，根据不同的灌溉策略灌溉了默特尔植物'Daniela'：（1）无胁迫（NS，100％作物蒸散（ETc）），（2）高胁迫（HS， 25％ETc），（3）中度应力（MS，50％ETc），（4）低应力（LS，75％ETc），（5）部分根区干燥（PRD），50％ETc（加水）一次仅在工厂的一侧，每十五天在工厂侧之间切换一次供水，以及（6）农民自灌溉管理（FIM）。使用节水灌溉作为变异系数进行了随机区组设计。将午间茎水势（mSWP）用作水分胁迫指标。确定了物候期，浆果的生物特征参数，产量和浆果组成（还原糖和花色苷）。主要结果表明，不同的节水灌溉策略可以显着影响和提高浆果的产量，而对质量参数没有显着影响。 FIM处理的严重减水导致产量大幅下降，尤其是在第一年。 mSWP是可靠的植物水分胁迫指标。多年来，HS处理的用水效率最高。在撒丁岛气候下，应根据非集约灌溉系统HS或MS的要求，对开放田间种植的桃金娘进行轻度灌溉，以确保植物的高产和营养。

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