Salt Distribution in Peat Substrate Grown With Melon (Cucumis Melo L.)

Ondrašek, Gabrijel; Romić, Davor; Romić, Marija; Tomić, Franjo; Mustać, Ivan

doi:10.17660/actahortic.2008.779.37

Cited by 10 publications

(6 citation statements)

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“…The T-Double received the same amount of water as in the T-Single (Table 1) but divided into two lines. Since water is incompressible, it was clear that the increased number of emitters resulted in wider wet bulbs, even though the heterogeneous pattern of soil moisture (Samadianfard et al, 2012), spreading in the horizontal direction (Ondrasek et al, 2008) and limited in depth (Balsalobre et al, 2018). As a result of the T-Double wetted surface, less water would be loss in depth and trees should improve the water uptake.…”

Section: Water Status and Yieldmentioning

confidence: 99%

Irrigation management practices in nectarine fruit quality at harvest and after cold storage

Conesa

Conejero

Vera

et al. 2021

Agricultural Water Management

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This work aimed to ascertain the effects of different irrigation management practices on yield, fruit quality (nutritional and sensorial) and storage performance of early-maturing nectarine fruits during three consecutive growing seasons (2016/2017-2018/2019) under Mediterranean conditions. Three irrigation treatments were studied: two based on maintaining non-limiting soil water conditions (100% crop evapotranspiration, ETc) with one (T-Single) or two (T-Double) lines of emitters; and one based on volumetric soil water content (VSWC) threshold values (T-Auto). Despite the greater wetted surface in the T-Double treatment, a mild plant water deficit was observed during the post-harvest period, which did not significantly affect the yield and nectarine fruit quality. The T-Auto irrigation based on VSWC, which received 43% less water than the T-Single treatment, caused a moderate water deficit, without yield penalty in any of the growing seasons studied and an increase in the water use efficiency of 34% respect to the T-Single treatment. Furthermore, nectarine fruits from the T-Auto treatment had higher TSS levels (°Brix) at harvest. There were no significant differences in the physico-chemical quality among treatments after 10 days of cold storage (0 °C) plus 5 days of shelf-life (15 °C), showing fruits from the T-Single treatment the highest weight loss values. The use of precise agronomic criteria with soil water sensors is an avantgarde alternative for irrigation scheduling compared to the conventional ETcbased irrigation that improved water use efficiency and contributed to the sustainability of agriculture. The T-Double treatment has not provided any advantage in terms of production and quality compared to the T-Single treatment.

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Section: Water Status and Yieldmentioning

confidence: 99%

Irrigation management practices in nectarine fruit quality at harvest and after cold storage

Conesa

Conejero

Vera

et al. 2021

Agricultural Water Management

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“…An expanded root system supports crops by reducing moisture stress [28]. A study showed that emitters' location could significantly affect the distribution of moisture and salt in the substrate [32]. The use of multiple emitters per plant reduced the leaching fraction compared with that resulting from one emitter, resulting in enhancing the amount and uniformity of substrate moisture in gerbera cultivated within pots [33].…”

Section: Introductionmentioning

confidence: 99%

Effects of Drip Irrigation Emitter Density with Various Irrigation Levels on Physiological Parameters, Root, Yield, and Quality of Cherry Tomato

et al. 2020

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Root morphology and its components’ behavior could show a considerable response under multiple water application points per plant to help the ultimate effect of fruit yield and fruit quality. In this study, a comparison of a single emitter per plant was made with two, three, and four emitters per plant under drip irrigation and two irrigation levels (full irrigation 100% and deficit irrigation 75% of crop evapotranspiration) to investigate their effects on physiological parameters, root, yield, and their associated components for potted cherry tomato under greenhouse conditions in Jiangsu-China. The experimental results showed that the plants cultivated in the spring-summer planting season showed significantly higher results than the fall-winter planting season due to low temperatures in the fall-winter planting season. However, the response root length, root average diameter, root dry mass, leaf area index, photosynthetic rate, transpiration rate, fruit unit fresh weight, the number of fruits, and pH were increased by multiple emitters per plant over a single emitter per plant, but total soluble solids decreased. Besides, a decreasing trend was observed by deficit irrigation for both planting seasons, and vice versa for the case for tomato total soluble solids. Due to an increase in measured parameters for multiple emitters per plant over a single emitter per plant, the yield, water use efficiency, and water use efficiency biomass significantly increased by 18.1%, 17.6%, and 15.1%, respectively. The deficit irrigation caused a decrease in the yield of 5% and an increase in water use efficiency and water use efficiency biomass of 21.4% and 22.9%, respectively. Two, three, and four emitters per plant had no significant effects, and the obtained results were similar. Considering the root morphology, yield, water use efficiency, water use efficiency biomass, and fruit geometry and quality, two emitters per plant with deficit irrigation are recommended for potted cherry tomato under greenhouse conditions. The explanation for the increased biomass production of the plant, yield, and water use efficiency is that two emitters per plant (increased emitter density) reduced drought stress to the roots, causing increased root morphology and leaf area index and finally promoting the plant’s photosynthetic activity.

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“…1C-D), where the emitter was placed, building up a wet bulb in this quadrant. Because the wet bulb was often saturated, the irrigation solution spread more in the horizontal direction (De Rijck and Schrevens, 1998;Ondrasek et al, 2008), displacing salts to the other quadrants. This behavior was observed with one emitter under both saline conditions studied and was especially evident at 1.5 dS • m -1 .…”

Section: Resultsmentioning

confidence: 99%

“…Drip irrigation usually uses one emitter per pot for small containers, and very few published papers have studied the effect on growth and variations of roots and salts in the root ball when two or more emitters per pot are used. Ondrasek et al (2008) reported the position of the emitters in the pot could strongly affect the moisture and salt distribution in the substrate.…”

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confidence: 99%

The Number of Emitters Alters Salt Distribution and Root Growth in Potted Gerbera

Valdés

Miralles²,

Ochoa³

et al. 2014

horts

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Potted gerberas were grown in a greenhouse with one, two, or four emitters (1.2 L·h−1) per pot and irrigated with water of two levels of salinity (1.5 dS·m−1 and 3 dS·m−1). All pots received the same volume of water. The aim was to determine whether the number of emitters per pot affects the distribution of roots and salts in the substrate (100% coconut fiber). We determined the electrical conductivity (EC) distribution at three different heights (upper, middle, and lower). We also studied the roots and EC horizontal distribution in four quadrants (southeast, southwest, northwest, and northeast). Shoot growth, leaf damage, plant water status, and photochemical capacity of photosystem II were also studied. Two or four emitters per pot reduced the leaching fraction compared with that observed with one emitter, improving both the amount and homogeneity of substrate moisture. In the two saline conditions used, the salt concentration in the substrate was irregular both vertically and horizontally, and the presence of roots in the horizontal quadrant sides was heterogeneous. Both of these behaviors decreased as the number of emitters per pot increased. Root growth was weakly related with the soluble salt content in the root zone. When saline water is used, two emitters per pot are to be recommended because the difference between using two and four emitters was very slight. The use of only one emitter reduced shoot and root growth and encouraged salt damage to leaves.

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Salt Distribution in Peat Substrate Grown With Melon (Cucumis Melo L.)

Cited by 10 publications

References 0 publications

Irrigation management practices in nectarine fruit quality at harvest and after cold storage

Irrigation management practices in nectarine fruit quality at harvest and after cold storage

Effects of Drip Irrigation Emitter Density with Various Irrigation Levels on Physiological Parameters, Root, Yield, and Quality of Cherry Tomato

The Number of Emitters Alters Salt Distribution and Root Growth in Potted Gerbera

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