Irrigation scheduling based on pan evaporation values for cucumber (Cucumis sativus L.) grown under field conditions

Ertek, Ahmet; Şensoy, Suat; Gedik, İbrahim; Küçükyumuk, Cenk

doi:10.1016/j.agwat.2005.03.008

Cited by 89 publications

(45 citation statements)

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“…Production effects of cucumber irrigation are unremarkable and in particular years are not the same, which is caused by the amount and distribution of atmospheric precipitation in the vegetation season Mao et al, 2003;Ş imş ek et al, 2005;Ertek et al, 2006). Cucumber yield harvested from an irrigated plantation is substantially bigger from the yield obtained in controlled conditions.…”

Section: A) B)mentioning

confidence: 99%

“…For example, in a moderately dry region of Turkey, production effects of irrigation in the drip system oscillated between 6.1 and 9.9 kg m -3 (Ş imş eket al, 2005). According to Ertek et al (2006), cucumber yield, under influence of irrigation can increase from 18 even up to 45 t ha -1 . The recorded precipitation deficiency, in the years 1966-2005, in Poland and especially in its central part confirms usefulness of carrying out research on cucumber irrigation.…”

Section: A) B)mentioning

confidence: 99%

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Temporal and spatial diversity of the occurrence of atmospheric drought in Poland (1966-2005) and its effect of yield of pickling cucumber (Cucumis sativus L.)

Kalbarczyk

1970

Span. j. agric. res.

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Counteracting the negative effects of drought in vegetal production should include drought monitoring, determination of drought tolerance and, thus, the assessment of risk, limitations and losses of yield for various species of cultivated plants. The aim of the work was to assess temporal and spatial variability of the occurrence of atmospheric drought in Poland and to determine the risk of cultivation of pickling cucumber caused by this phenomenon. To carry out the task, starting data concerning the marketable and total yield of cucumber, durations of cucumber development stages and also daily atmospheric precipitation totals, collected respectively from 28 experimental stations and 51 meteorological stations through 1966-2005, were used. Atmospheric drought of different intensity: moderate, severe and extreme, in four analysed cucumber development stages was determined on the basis of the standard precipitation index. On the other hand, relationship between cucumber yield and precipitation deficiency in the period of the highest demand for water was determined by means of curvilinear regression analysis. In Poland, drought occurred mostly in the central-western part of the country. In this area, an average decrease in the cucumber total yield amounted to over 12% every 2-3 years, and the marketable yield over 15% every 2 years. The results obtained in the present work can be used in the research concerning the assessment of drought influence on growth, development and crop productivity of other cultivated plants.Additional key words: cultivation risk; regression analysis; standard precipitation index; vegetable. ResumenDiversidad temporal y espacial de la incidencia de la sequía atmosférica en Polonia (1966-2005) y su efecto sobre la producción de pepino encurtido (Cucumis sativus L.)Para contrarrestar los efectos negativos de la sequía en la producción de las plantas se debe incluir una vigilancia de la sequía, determinando la tolerancia a la sequía y evaluando riesgos, limitaciones y pérdidas de producción de las plantas cultivadas. El objetivo de este trabajo fue evaluar la variabilidad espacial y temporal de la ocurrencia de la sequía atmosférica en Polonia y determinar el riesgo existente en el cultivo de pepino encurtido causado por este fenó-meno. Se utilizaron datos de producción comercial y total de pepino, y de precipitación atmosférica diaria, recogidos de 28 estaciones experimentales y 51 meteorológicas, respectivamente, entre 1966 y 2005. Se determinó, sobre la base del índice de precipitación estándar, una sequía atmosférica de diferentes intensidades: moderada, severa y extrema, en cuatro etapas de desarrollo del pepino analizadas. Por otro lado, se determinó la relación existente entre la producción de pepino y la deficiencia de las precipitaciones, en el período de más alta demanda de agua, mediante un análisis de regresión curvilínea. Se observó que la sequía se concentró en la parte centro-occidental del país; en este área, la disminución media en la producción total de pepino fue de...

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Section: A) B)mentioning

confidence: 99%

Section: A) B)mentioning

confidence: 99%

Temporal and spatial diversity of the occurrence of atmospheric drought in Poland (1966-2005) and its effect of yield of pickling cucumber (Cucumis sativus L.)

Kalbarczyk

1970

Span. j. agric. res.

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“…As water resources become increasingly scarce, the only irrigation water available in some areas is manually applied from collected precipitation. Therefore, more attention has been paid to irrigation scheduling (Ertek et al 2006), water-use efficiency (Mao 2003) and the mechanism by which cucumber responds to water loss. The pressure to improve the tolerance of cucumber to water loss has attracted the interest of many researchers.…”

Section: Introductionmentioning

confidence: 99%

Effects of exogenous abscisic acid pre-treatment of cucumber (Cucumis sativus) seeds on seedling growth and water-stress tolerance

Wang

Sui

et al. 2010

New Zealand Journal of Crop and Horticultural Science

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The effect of treating cucumber seeds (Cucumis sativus 'Zhongnong 12') with exogenous abscisic acid (ABA) on seedling growth and various plant characteristics, including chlorophyll a fluorescence, net photosynthesis, antioxidant enzyme activity and water-stress tolerance under dehydration was investigated. The results showed that the photosynthesis rate (Pn), stomatal conductance (Gs), transpiration rate (Tr) and the apparent quantum yield of photosynthesis (AQY) all declined gradually, but the decline in ABA seed pre-treated seedlings (ASPS) was less than in non-ABA seed pre-treated seedlings (NASPS), especially for Pn during dehydration. Water use efficiency (WUE) was observed in ASPS, which was three times greater than that in NASPS, implying that the corresponding increase in WUE, calculated on the basis of water uptake, was the result of increased Pn and a reduction in transpiration in ASPS. During dehydration, the levels of electron transport rate (ETR), photochemical efficiency of PSII (F v /F m ), photochemical quenching (qP), quantum efficiency of PSII photochemistry (F PSII ) and the ratio of photochemicals (Pc) all decreased; in particular, the decline in NASPS was more than that in ASPS. The levels of non-photochemical quench (NPQ), ratio of antenna heat dissipation (Hd) and ratio of heat dissipation in PSII (Ex) all increased more in NASPS than in ASPS, suggesting that ABA could protect cucumber seedlings from the damage of photoinhibition by improved heat dissipation. Dehydration caused an increase in antioxidant enzyme activities in the first two days, especially in ASPS, and then declined slightly. In comparison with NASPS, ASPS showed a marked decrease in malondialdehyde (MDA) content during dehydration. On the other hand, rehydration resulted in nearly 100% recovery of Pn, Gs and Tr in ASPS, as well as chlorophyll fluorescence parameters, but only a small recovery in NASPS. These results suggest that imbibition of cucumber seeds with ABA protected cucumber seedlings from water-loss damage and increased their resistance or tolerance of dehydration, especially improving their WUE by improved Pn rather than by reduced water uptake under dehydration. The beneficial effect of exogenous ABA applications on reducing susceptibility to gradual dehydration of cucumber seedlings was confirmed in our study by applying ABA to imbibition cucumber seeds.

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“…One of the simpler techniques is to directly measure the water evaporation in the field from an evaporation pan, which is an apparently simple integrated measurement of complex meteorological interactions, such as solar radiation, temperature, humidity, and wind speed. Although pan evaporation cannot fully represent lake evaporation, it has been found as proportional to actual evaporation of moist surfaces, such as lakes or irrigated fields (Kahler and Brutsaert 2006), and also calculated reference crop evapotranspiration (Brouwer and Heibloem 1986;Grismer et al 2002;Snyder et al 2005;Ertek et al 2006). Because pans of various designs have produced data for many regions throughout the world for long periods, attempts have also been made to use these data to estimate actual evaporation even in non-moist environments.…”

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confidence: 99%

A critical overview of pan evaporation trends over the last 50 years

Charles

2009

Climatic Change

121

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Despite the observed increases in global average temperature, observations across the world show that the rate of pan evaporation at a regional scale has been steadily decreasing over the past 50 years. This is known as the pan evaporation paradox. This paper reviews current reported pan evaporation trends, examines available theoretical explanations about this "paradox", and discusses current research gaps and priorities. It concludes that: (1) three major potential causes of pan evaporation, solar radiation, vapour pressure deficit (VPD) and wind speed, have been changing in the last 50 years. The magnitude of changes and importance of each of these three causes varies from region to region, as does the pan evaporation trend, although overall there is a decreasing trend. (2) Currently two existing theories explaining the pan evaporation trends have limits and are only valid in some specific regions and seasons. Neither of them provides a fundamental physical-based theory that could be applied everywhere. (3) Further investigations are needed before we can fully understand the global evapotranspiration trend in global warming scenarios.

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Irrigation scheduling based on pan evaporation values for cucumber (Cucumis sativus L.) grown under field conditions

Cited by 89 publications

References 10 publications

Temporal and spatial diversity of the occurrence of atmospheric drought in Poland (1966-2005) and its effect of yield of pickling cucumber (Cucumis sativus L.)

Temporal and spatial diversity of the occurrence of atmospheric drought in Poland (1966-2005) and its effect of yield of pickling cucumber (Cucumis sativus L.)

Effects of exogenous abscisic acid pre-treatment of cucumber (Cucumis sativus) seeds on seedling growth and water-stress tolerance

A critical overview of pan evaporation trends over the last 50 years

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