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首页> 外文期刊>Journal of Science and Technology of Greenhouse Culture >Effect of deficit irrigation on evapotranspiration, water use efficiency, yield and growth of Hamadanian pepper in greenhouse cultivation
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Effect of deficit irrigation on evapotranspiration, water use efficiency, yield and growth of Hamadanian pepper in greenhouse cultivation

机译：亏缺灌溉对温室栽培哈马丹辣椒蒸散量，水分利用效率，产量和生长的影响

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Effect of deficit irrigation on evapotranspiration, yield, water use efficiency and some growth parameters of Hamadanian pepper (Bivar) using a completely randomized design (CRD) with a full irrigation treatment (FI) and three deficit irrigation treatments (85, 70 and 55% application of water requirement; DI_(85), DI_(70), and DI_(55), respectively) in five replications was examined. Evapotranspiration in the FI, DI_(85), DI_(70), and DI_(55) treatments during the 66 days of the deficit irrigation application, were 337.8, 307.5, 281.1 and 244.2 mm and in the whole growth period were 396.2, 365.9, 339.5 and 302.6 mm, respectively. The plant's morphological characteristics were decreased with decreasing the soil water content. However, in 79% of the cases, the difference between FI and DI_(85) treatments was not significant. Whereas, in all the cases, the difference between DI_(55) treatment and FI and DI_(85) treatments was significant. Applying deficit irrigation decreased the number of good-shaped fruits from 33.0/plant in the FI treatment to 15.6/plant in the DI_(55) treatment and similarly increased the number of bad-shaped fruits from 5.4 to 18.0 per plant. Crop yield and water use efficiency in the FI treatment were 18.98 ton/ha and 4.79 kg/m~(3), which did not have significant difference with the DI_(85) treatment (which had a yield of 17.75 ton/ha and a water use efficiency of 4.85 kg/m~(3)). While there is not a statistically significant difference between the crop yields of FI and DI_(85) treatments, the DI_(85) treatment uses less water and gives crop yield very close to that of full irrigation treatment. Hence, the DI_(85) treatment can be recommended in the cultivation of Hamadanian pepper. In the severe water-scarce conditions, the DI_(70) treatment could be used to yield 13.48 ton/ha, which is 29% less than the FI treatment. Also, water use efficiency in the DI_(70) treatment was decreased by 17% compared to the FI treatment. Irrigation efficiency was 61.9, 65.3, 69.6 and 73.4% in the FI, DI_(85), DI_(70), and DI_(55) treatments, respectively.
机译：完全灌溉设计（FI）和三种亏水灌溉处理（85、70和55％）的完全随机设计（CRD），亏缺灌溉对哈马丹辣椒（Bivar）的蒸散量，产量，水分利用效率和某些生长参数的影响在五个重复中检查了对水的需求; DI_（85），DI_（70）和DI_（55））。 FI，DI_（85），DI_（70）和DI_（55）处理在缺水灌溉的66天期间的蒸散量分别为337.8、307.5、281.1和244.2 mm，在整个生长期分别为396.2、365.9分别为339.5和302.6毫米。随着土壤含水量的减少，植物的形态特征降低。但是，在79％的病例中，FI和DI_（85）治疗之间的差异并不显着。而在所有情况下，DI_（55）治疗与FI和DI_（85）治疗之间的差异均很大。进行亏缺灌溉将好形果实的数量从FI处理的33.0 /株减少到DI_（55）处理中的15.6 /株，同样，不良形水果的数量也从5.4 / 1增加到每株。 FI处理的农作物产量和水分利用效率分别为18.98吨/公顷和4.79 kg / m〜（3），与DI_（85）处理的产量（17.75吨/公顷和用水效率为4.85 kg / m〜（3））。尽管FI和DI_（85）处理的作物产量之间没有统计学上的显着差异，但DI_（85）处理使用的水量较少，使作物的产量非常接近完全灌溉处理。因此，在哈马丹辣椒的栽培中可以推荐使用DI_（85）处理。在严重缺水的条件下，DI_（70）处理可用于生产13.48吨/公顷，比FI处理少29％。此外，与FI处理相比，DI_（70）处理中的用水效率降低了17％。 FI，DI_（85），DI_（70）和DI_（55）处理的灌溉效率分别为61.9％，65.3、69.6和73.4％。

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