scholarly journals Soil and Regulated Deficit Irrigation Affect Growth, Yield and Quality of ‘Nero d’Avola’ Grapes in a Semi-Arid Environment

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 641
Author(s):  
Maria Gabriella Barbagallo ◽  
Giuseppe Vesco ◽  
Rosario Di Lorenzo ◽  
Riccardo Lo Bianco ◽  
Antonino Pisciotta
Keyword(s):  
Vegetative Growth ◽  
Deficit Irrigation ◽  
Water Status ◽  
Irrigation Management ◽  
Growth Yield ◽  
Wine Quality ◽  
Regulated Deficit Irrigation ◽  
Total N ◽  
Yield And Quality

The present work studied the effect of two consecutive years of regulated deficit irrigation (RDI) compared to rain fed management on the vegetative growth, yield, and quality of ‘Nero d’Avola’ grapes. The trial was conducted separately in two soils (vertisol and entisol) located at the top and bottom hillside of the same vineyard. Vertisol was characterized by greater depth, organic matter, exchangeable K2O, and total N than entisol. RDI was based on an irrigation volume at 25% of estimated crop evapotranspiration (ETc) up to end of veraison and 10% of estimated ETc up to 15 days before harvest. Predawn water potential (PDWP) was used as indicator of plant water status and irrigation timing. No difference in irrigation management was evident between vertisol and entisol. Under Mediterranean climate conditions, RDI was able to enhance grape yield and vegetative growth, especially in vertisol, but it reduced berry titratable acidity and total anthocyanins. ‘Nero d’Avola’ showed to adapt to drought conditions in the open field. Both soil type and irrigation regimes may provide opportunities to obtain different ‘Nero d’Avola’ wine quality and boost typicality.

Effect of deficit irrigation during stage II and post-harvest on tree water status, vegetative growth, yield and economic assessment in ‘Angeleno’ Japanese plum

2015 ◽  
Vol 158 ◽  
pp. 69-81 ◽  
Author(s):  
Alberto Samperio ◽  
María José Moñino ◽  
Antonio Vivas ◽  
Fernando Blanco-Cipollone ◽  
Abelardo García Martín ◽  
...  
Keyword(s):  
Vegetative Growth ◽  
Deficit Irrigation ◽  
Water Status ◽  
Growth Yield ◽  
Economic Assessment ◽  
Stage Ii ◽  
Japanese Plum ◽  
Post Harvest

Effects of deficit irrigation and biochar addition on the growth, yield, and quality of tomato

2017 ◽  
Vol 222 ◽  
pp. 90-101 ◽  
Author(s):  
Gamareldawla H.D. Agbna ◽  
She Dongli ◽  
Liu Zhipeng ◽  
Nazar A. Elshaikh ◽  
Shao Guangcheng ◽  
...  
Keyword(s):  
Deficit Irrigation ◽  
Growth Yield ◽  
Yield And Quality

scholarly journals Effect of deficit irrigation on yield and quality of pear (Pyrus communis cv. Triumph of Vienna)

2017 ◽  
Vol 35 (3) ◽  
pp. 350-356 ◽  
Author(s):  
Adriana Carolina Moreno-Hernández ◽  
Javier Enrique Vélez-Sánchez ◽  
Diego Sebastiano Intrigliolo
Keyword(s):  
Deficit Irrigation ◽  
Growth Stage ◽  
Pyrus Communis ◽  
Fruit Growth ◽  
Stem Water Potential ◽  
Regulated Deficit Irrigation ◽  
Yield And Quality ◽  
Volume Curve ◽  
Pressure Volume Curve

Crop demands for irrigation require different technologies to optimize the use of water. Regulated Deficit Irrigation (RDI) is a strategy that enables a significant reduction of water application without affecting the crop yield and quality, with the advantage of being a tool for control of vegetative growth. The present study was conducted in Sesquile, Cundinamarca (Colombia) between 2015 and 2016. The objective was to evaluate the quality and development of pear crop (Pyrus communis L. cv. Triumph of Vienna) on field conditions, using three treatments of 100%, and 25% of water requirement (ETc) and no irrigation, applied at the rapid fruit growth stage. The mid day stem water potential, plant water relations, pressure-volume curve, fruit yield and quality were evaluated. There were no significant differences in the yield and quality of the fruits among the different irrigation treatments. The trees had the mechanisms of osmotic adjustment, which allowed water stressed trees to cope with irrigation restrictions during the rapid fruit growth stage without affecting the yield.

Effects of Age of Harvesting after Pod Set on the Growth, Yield and Quality of Okra (Abelmoschus esculentus)

1991 ◽  
Vol 27 (1) ◽  
pp. 33-37 ◽  
Author(s):  
G. O. Iremiren ◽  
A. W. Osara ◽  
D. A. Okiy
Keyword(s):  
Vegetative Growth ◽  
Crude Protein ◽  
Growth Yield ◽  
Ash Content ◽  
Abelmoschus Esculentus ◽  
Crude Fibre ◽  
Pod Yield ◽  
Yield And Quality ◽  
Pod Quality

SUMMARYDifferences in the age at which okra pods were harvested (4, 7, 10 or 13 days after pod set) had no effect on vegetative growth or pod yield, but pods harvested more than seven days after pod set were of poorer quality. The reduction in pod quality arose mainly from an increase in crude fibre and a reduction in the moisture, crude protein and ash content of older pods.

scholarly journals Scheduling Regulated Deficit Irrigation with Leaf Water Potential of Cherry Tomato in Greenhouse and its Effect on Fruit Quality

Agriculture ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 669
Author(s):  
Leontina Lipan ◽  
Hanán Issa-Issa ◽  
Alfonso Moriana ◽  
Noemí Medina Zurita ◽  
Alejandro Galindo ◽  
...  
Keyword(s):  
Irrigation Water ◽  
Deficit Irrigation ◽  
Water Status ◽  
Irrigation Scheduling ◽  
Leaf Water ◽  
Soluble Solids ◽  
Regulated Deficit Irrigation ◽  
Randomized Design ◽  
Water Scarce

The tomato cultivated surface is one of the most important surfaces in the world. This crop needs a sufficient and continuous supply of water during vegetative growth. Therefore, production may be at risk in warm and water-scarce areas. Therefore, the implementation of irrigation alternatives such as regulated deficit irrigation (RDI) is of great importance to reduce the use of water and improve the production of the quality of tomatoes. The objective of this work was to evaluate the deficit irrigation scheduling using plant water status as a tool in deficit irrigation. Experimental design was a randomized design with four replications per treatment. Two irrigation treatments were applied: Control (125% of crop evapotranspiration (ETc)) and Regulated Deficit Irrigation (RDI). This latter treatment considered different threshold values of midday leaf water depending on crop phenological stage. No differences were observed in yield, with RDI treatment being more efficient in the use of irrigation water than the control. Besides, RDI tomatoes presented, in general, greater weight, size, Total soluble solids (TSS), sugars, antioxidant activity, lycopene, β-Carotene, and redder color with more intense tomatoes flavor. Finally, it might be said that RDI strategy helped to reduce 53% of irrigation water and to improve the nutritional, functional, and sensory quality of tomatoes.

scholarly journals Physiological and biochemical responses of onion plants to deficit irrigation and humic acid application

2021 ◽  
Vol 6 (1) ◽  
pp. 728-737
Author(s):  
Zahra Amiri Forotaghe ◽  
Mohammad Kazem Souri ◽  
Marzieh Ghanbari Jahromi ◽  
Ali Mohammadi Torkashvand
Keyword(s):  
Humic Acid ◽  
Deficit Irrigation ◽  
Soluble Sugars ◽  
Growth Yield ◽  
Field Capacity ◽  
Leaf Protein ◽  
Vegetable Crops ◽  
Sod Activity ◽  
Yield And Quality

Abstract Onion is an important crop with significant roles in human diets. The growth, yield, and quality of vegetable crops, including onions, are more vulnerable to water stress than other crops. In this study, different levels of deficit irrigation (DI) as factor A (a1: 80%, a2: 70%, and a3: 60% of soil field capacity [FC]) and humic acid (HA) as factor B (b1: without and b2: with HA application) were evaluated on onion growth characteristics in a factorial design with four replications. The results showed that the interaction of DI and HA was significant on leaf protein, peroxidase (POD), superoxide dismutase (SOD), and on bulb protein and potassium (K) concentrations. The highest record of these traits was observed in a3b2 (highest DI with HA application), and their lowest was in those at first level of DI (a1). Leaf protein and, to a lesser extent, bulb protein were increased by DI and HA applications. DI at 60% but not at 70% FC significantly reduced bulb fresh weight. There was a gradual increase in leaf proline, soluble sugars, protein, catalase (CAT), POD, SOD activity, and bulb K by application of DI; however, most of bulb traits including protein, iron (Fe), zinc (Zn), and CAT and POD activity were increased only under highest DI level (a3: 60% FC). However, application of HA further increased the soluble sugars and protein concentration as well as the POD and SOD activities of leaves, and protein, Fe, K concentrations, and CAT activity of bulbs under DI. The results indicated that HA benefitted onion growth particularly under DI conditions.

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