Effects of irrigation on yield and oil quality of different olive cultivars grown in semi-arid conditions of Tunisia

Aiming to evaluate the postharvest quality of ‘Roxo de Valinhos’ fig fruits grown in semi-arid conditions, this experiment was carried out in November, 2014, where fig fruit variety ‘Roxo de Valinhos’ were harvested from plants located at the didactic orchard of the Federal Rural University of Semi-Arid (UFERSA), Mossoró-RN, Brazil. Fruits were randomly harvested from 30 fig plants, spaced 2 m x 1.5 m, with 2 years old, according to three the fruit development stages (50%, 75% and 100% mature). The fruits were analyzed in Postharvest Physiology Laboratory, where the physical and chemical characteristics were evaluated, using 10 fruits for each stage. The evaluated characteristics were: weight, length, diameter, firmness, soluble solids, pH, titratable acidity and vitamin C. For the physical characteristics, fruits 100% mature presented the best results for weight, length and diameter, except for firmness which in fruits 50% mature presented the best results. For the chemical characteristics, only the soluble solid variable was signiicant and fruits 100% mature showed the best result, in this way, the fig tree ‘Roxo de Valinhos’ achieved the postharvest fruit quality and is viable for the semiarid region of the Rio Grande Norte State.

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Performance and oil quality of seven olive cultivars under high density planting system in northern Cyprus

Pakistan Journal of Botany ◽

10.30848/pjb2019-5(42) ◽

2019 ◽

Vol 51 (5) ◽

Author(s):

Serhat Usanmaz ◽

Ibrahim Kahramanoglu ◽

Turgut Alas ◽

Volkan Okatan

Keyword(s):

Oil Quality ◽

High Density ◽

Northern Cyprus ◽

Olive Cultivars ◽

Planting System

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Effect of irrigation, fertiliser type and variety on grain yield and nutritional quality of spelt wheat (Triticum spelta) grown under semi-arid conditions

Food Chemistry ◽

10.1016/j.foodchem.2021.129826 ◽

2021 ◽

Vol 358 ◽

pp. 129826

Author(s):

Juan Wang ◽

Marcin Barański ◽

Gultakin Hasanaliyeva ◽

Recep Korkut ◽

Hassan Ashraa Kalee ◽

...

Keyword(s):

Grain Yield ◽

Nutritional Quality ◽

Triticum Spelta ◽

Spelt Wheat ◽

Arid Conditions ◽

Semi Arid

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Deficit Irrigation to Enhance Fruit Quality of the ‘African Rose’ Plum under the Egyptian Semi-Arid Conditions

Agronomy ◽

10.3390/agronomy11071405 ◽

2021 ◽

Vol 11 (7) ◽

pp. 1405

Author(s):

Islam F. Hassan ◽

Maybelle S. Gaballah ◽

Hanan M. El-Hoseiny ◽

Mohamed E. El-Sharnouby ◽

Shamel M. Alam-Eldein

Keyword(s):

Fruit Quality ◽

Deficit Irrigation ◽

Total Yield ◽

Fruit Yield ◽

Soluble Solids ◽

Limited Information ◽

Yield And Quality ◽

Arid Conditions ◽

Semi Arid

Evolved in South Africa and released to market in 2009, the ‘African Rose’ plum has been introduced and grown under the Egyptian semi-arid conditions since 2010. Within that time, this cultivar has faced significant fruit quality issues, mainly poor color and low total soluble solids (TSS). Several trials using foliarly applied growth regulators have been conducted, but with little conspicuous results on fruit yield and quality. There is very limited information about the relationship between irrigation regime and fruit quality for this cultivar. Therefore, a field experiment was conducted to study the effect of deficit irrigation on the quality of the ‘African Rose’ plum during the 2019 and 2020 seasons. Five-year-old hedge growing trees were subjected to three deficit irrigation regimes: 100% (control), 80%, and 60% of the crop evapotranspiration (ETc) after the pit hardening stage until the end of the harvest season (May to June period) were evaluated. Results indicated that deficit irrigation positively enhanced the levels of abscisic acid (ABA), total phenols, and anthocyanins with improved fruit TSS and maturity index, although fruit yield, acidity, size, and firmness were decreased. Deficit irrigation could be suggested as a sustainable novel solution to improve the fruit quality of the ‘African Rose’ plum grown under the semi-arid conditions of Egypt. Although the total yield and some quality characteristics were not improved, the early harvested fruit with enhanced color and taste could be a good start for additional research to solve other quality-related issues under such conditions.

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Irrigation with saline water on pineapple grown in the semi-arid of bahia state

Bioscience Journal ◽

10.14393/bj-v35n6a2019-41898 ◽

2019 ◽

Vol 35 (6) ◽

Author(s):

Cleiton Fernando Barbosa Brito ◽

Varley Andrade Fonseca ◽

Marcelo Rocha dos Santos ◽

Alessandro de Magalhães Arantes ◽

Sergio Luiz Rodriguez Donato

Keyword(s):

Saline Water ◽

Block Design ◽

Growth Yield ◽

Arid Conditions ◽

Randomized Block Design ◽

Irrigation Depth ◽

Plant Grown ◽

Use Efficiency ◽

Semi Arid

We aimed to evaluate the effects of different irrigation depths with saline water on growth, yield, water-use efficiency, and fruit quality of ‘Pérola’ pineapple plant grown in the semi-arid of Bahia state. The experiment was carried out in a randomized block design with five treatments which represented the irrigation depths: 100% of crop evapotranspiration (ETc) with irrigation water of 0.75 dS m-1 in electrical conductivity (ECiw); and 50, 75,100, and 125% of ETc with water of 3.6 dS m-1 in ECiw. Pineapples were grown under field conditions watered by drip irrigation in which pressure compensating emitters had 8 L h-1 flow rate. We observed that the irrigation depth 100% of ETc with water of 0.75 and 3.6 dS m-1 in ECiw provides higher pineapple yields under the semi-arid conditions of this study, and the chemical quality of the fruits are up to commercial standards, except when applying 125% of ETc with water of 3.6 dS m-1 in ECiw.

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Biometrics, physiology, production, and quality of Cantaloupe melons grown with saline waters under semi-arid conditions

Comunicata Scientiae ◽

10.14295/cs.v11i0.3249 ◽

2020 ◽

Vol 11 ◽

pp. e3249 ◽

Cited By ~ 1

Author(s):

Reivany Eduardo Morais Lima ◽

Laíse F Araújo ◽

Luciana F. de L. Farias ◽

Marlos A Bezerra

Keyword(s):

Gas Exchange ◽

Irrigation System ◽

Dry Mass ◽

Fruit Production ◽

Stem Length ◽

Arid Conditions ◽

Randomized Design ◽

Saline Waters ◽

Semi Arid

Brazilian Northeast region emerges as both producer and exporter relevant of cantaloupe melon to several countries; however, this region is vulnerable to salinization problems due to it is inserted in a semi-arid area. This study aimed to evaluate the biometrics, physiological, production and quality of new cantaloupe melon hybrids cultivated with different saline waters under semi-arid conditions. The experiment was conducted using a drip irrigation system in a split-plot randomized design. The plot was different irrigation water electrical conductivity (ECw) levels: 0.5, 2.0, 3.5, and 5.0 dS m-1, while the subplot was two new cantaloupe melon hybrids: Zielo and SV1044. Plant biometrics (stems and leaves analysis), plant physiology (solutes accumulation and gas exchange in leaves), fruit production (number, weight, and yield), and fruit quality (physical and chemical analysis) were investigated. Stem length, leaf numbers, leaf area, and shoot dry mass decreased when ECw increased from 0.5 to 5.0 dS m-1. Also, there was an increase of Na and Cl concentration and reduction of K concentration in leaves due to ECw increase. Gas exchange reduction, losses in fruit numbers, weight, yield, and in quality were observed with the ECw increase. It is possible to conclude that the ECw increase salinizes the soil and increases Na and Cl concentration in plants causing reduction in gas exchange, in growth, and in fruit production and quality. However, the response of cultivated hybrids regarding salinity may be different, as in our study that the Zielo hybrid was less affected by the increase in ECw.

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