Citrus root distribution under water stress grown in sandy soil of central Florida

Júnior, José Alves; Bandaranayake, Wije; Parsons, Lawrence R.; Evangelista, Adão Wagner Pêgo

doi:10.1590/s0100-69162012000600012

Cited by 7 publications

(6 citation statements)

References 11 publications

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“…The citrus roots system concentrated in the soil surface layers were also found in other studies, even in conditions with soil without physical barriers (Alves Júnior et al, 2012;Zaccheo et al, 2012). According to Santana et al (2006), root concentration in surface soil horizons is associated to their higher biological activity and water and nutrients availability.…”

Section: Resultssupporting

confidence: 74%

Rootstocks and planting types on root architecture and vegetative vigor of ‘Pera’ sweet orange trees

Meneses

Filho

et al. 2020

Rev. bras. eng. agríc. ambient.

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Root architecture affects plant growth and agricultural productions. Although it is related to genetic factors, soil physical limitations can affect the root system and volume of explored soil, compromising plant growth and fruit production. Considering the need to mitigate these restrictions, the objective of the present study was to evaluate two planting types (planting of protected seedlings and planting of seeds in definitive place) and two scion-rootstock combinations (‘Pera’ sweet orange, CNPMF D-6 selection, combined with ‘Santa Cruz Rangpur’ lime and ‘Sunki Tropical’ mandarin rootstocks). The experiment was conducted at the Lagoa do Coco Farm, Rio Real, BA, Brazil, in a Oxisol under rainfed conditions. Biometric, physiological, and soil water content evaluations were made during the experiment. Soil mechanical resistance to root penetration and root system characteristics were also evaluated. Roots were concentrated on the soil surface layers (0-0.40 m), extending horizontally up to 1.50 m from the plant, regardless of the management practices used. The total root length in each root diameter classes studied, root length density, and total root mean diameter were higher for planting of protected seedling, resulting in greater root development. Plants from ‘Pera’ sweet orange scion grafted on ‘Santa Cruz Rangpur’ lime rootstock had earlier production and were more vigorous. Soil structure affects root growth, and the root distribution up to 0.40 m depth is correlated with plant vigor, yield, and water status under rainfed conditions.

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Section: Resultssupporting

confidence: 74%

Rootstocks and planting types on root architecture and vegetative vigor of ‘Pera’ sweet orange trees

Meneses

Filho

et al. 2020

Rev. bras. eng. agríc. ambient.

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“…OGUNMOKUN AND WALLACH The lower soil water content in the 0-20 cm layer compared to the 20-40 cm layer can be attributed to an intense water depletion from the upper layer via evaporation through the soil surface, and a higher water uptake emanating from a higher root density in the top layer. Studies have reported that about 50% of plant roots reside in the top 0-20 cm soil profile (e.g., Jackson et al, 1996;José et al, 2012;Schenk & Jackson, 2002). José et al, 2012, found that more than 50% of feeder roots (<0.2 cm diameter) of citrumelo (X Citroncirus spp), a citrus hybrid between grapefruits and trifoliate orange, reside within the 0-15 cm soil layer.…”

Section: Discussionmentioning

confidence: 99%

Remediating the Adverse Effects of Treated Wastewater Irrigation by Repeated On‐Surface Surfactant Application

Ogunmokun

Wallach

2021

Water Resources Research

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Globally, agriculture is the largest consumer of freshwater, with estimations of around 70% of total withdrawals (WWAP United Nations World Water Assessment Program, 2014). Moreover, 28% of global agricultural land, and 56% of the total area of irrigated land are found in areas with high (40%-80%) or extremely high (>80%) water scarcity, based on the ratio of used water to available water. Due to the limited supply of freshwater, global attention is gradually shifting from exploitation to conservation approaches, with the recycling of wastewater at the forefront (WWAP United Nations World Water Assessment Program, 2017). The recognition of wastewater as an alternative water resource for agriculture is on the rise, especially in areas with scarce freshwater supply (Hamilton et al., 2007;Pedrero et al., 2010;Qadir et al., 2007). Reclaimed water can be used directly for many purposes, such as agricultural irrigation, city landscaping, golf courses,

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“…Both aforementioned factors are directly related to an improved water flux inside the plant system. According to Júnior, Bandaranayake, Parsons, & Evangelista (2012) and Li, Tan, Wang, Cao, & Yang (2019), root distribution is highly affected by irrigation systems and water availability. Similar findings were reported by El-Beltagi, Sassine, Hammoud, & Sebaaly (2019) stating that under drought conditions, irrigation systems positively affect the growth of Annona plants.…”

Section: Plant Part Ratios and Weightsmentioning

confidence: 99%

Drip vs. Mini-sprinkler Irrigation System on Leaf Water Potential and Various Vegetative Attributes of Annona squamosa under Lebanese Conditions

et al. 2021

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Recently, the introduction of tropical crops in Lebanon represented a challenge for farmers and researchers. Constraints to the adaptation of such crops, to climatic and soil conditions were found. In this study, an orchard of Annona trees (Sq/Ch combination) was irrigated by minisprinkler system and drip system, and compared to a control (not irrigated) over two consecutive years (year 4 and year 5 of the project). Compared to the control, plant height and leaf number were improved the most in year 5 by drip irrigation. Leaf water potential that peaked in the summer season in control plants (-1.8 MPa) was the lowest in plants irrigated by drip system (-1.3 MPa). No significant difference was observed between treatments in the number of lateral shoots. TDM of plant parts was improved by drip irrigation in both experimental years by 81 g (year 4) and by 258 g (year 5). LMF was significantly enhanced in year 5 by the mini-sprinkler system. RMF was the highest in trees irrigated by drip irrigation (0.265 g/g) and the lowest in the control (0.227 g/g). SMF was the highest in control trees in both experimental years. It seems that drip system presented an optimal method for the irrigation of annona.

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Citrus root distribution under water stress grown in sandy soil of central Florida

Cited by 7 publications

References 11 publications

Rootstocks and planting types on root architecture and vegetative vigor of ‘Pera’ sweet orange trees

Rootstocks and planting types on root architecture and vegetative vigor of ‘Pera’ sweet orange trees

Remediating the Adverse Effects of Treated Wastewater Irrigation by Repeated On‐Surface Surfactant Application

Drip vs. Mini-sprinkler Irrigation System on Leaf Water Potential and Various Vegetative Attributes of Annona squamosa under Lebanese Conditions

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