Fibrous Root Distribution in Blood Red Sweet Orange Trees under Semi- arid Irrigated Ecosystem

Dalal, R. P. S.; Bons, Harsimrat K.; Baloda, Satpal

doi:10.5958/2230-732x.2014.00251.4

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…Both citranges at 30 DAE and the 'Troyer' citrange at 45 DAE presented fewer roots in the upper third of the primary root and a higher insertion angle, indicating that these plants can explore the soil at depth and more horizontally than others. Similar behavior was observed by Dalal and Thakur (2011) in the field, where the 'Troyer' citrange had an intensive lateral root development growing at depth, and presented a significant number of roots up to 60 cm depth and close to the trunk (0-75 cm). Owing to its root system architecture, the 'Troyer' citrange has the potential to increase plant density by area; the depth and short root system will demand less spacing and decrease competition between plants.…”

Section: Root Architecturesupporting

confidence: 79%

“…However, with more time this cultivar can reach higher root development, as found by Dalal and Thakur (2011) in a 17-year-old pineapple orange trees grown on 'Cleopatra' mandarin, where this rootstock presented extensive lateral root system development, mostly in the upper layer 0-15 cm depth, and a dense However, with more time this cultivar can reach higher root development, as found by Dalal and Thakur (2011) in a 17-year-old pineapple orange trees grown on 'Cleopatra' mandarin, where this rootstock presented extensive lateral root system development, mostly in the upper layer 0-15 cm depth, and a dense and large canopy. A similar result was found by Neves et al (2008) who evaluated 12-year-old 'Ponkan' mandarin (C. reticulata Blanco) orchard and found that 'Cleopatra' mandarin had higher root length in the planting row (16.56 m) compared to 'Rangpur' lime (6.00 m), 'Rough' lime (5.70 m), and 'C13' citrange (4.49 m).…”

Section: Root Architecturementioning

confidence: 65%

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Initial shoot development and root architecture of citrus rootstocks

Cruz

Carvalho

Costa

et al. 2019

SCA

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A well-developed root system is a very important characteristic of rootstocks. Initial plant characterization is a potential technique to highlight cultivars with desirable root architecture for the diversification of rootstocks in the national citriculture. Thus, the aim of this study was to evaluate the initial shoot development and root architecture of citrus cultivars used as rootstocks. Seeds from five rootstocks, ‘Cleopatra’ mandarin, ‘Rangpur’ lime, ‘Rough’ lemon, ‘C13’ and ‘Troyer’ citranges, were sown in black polyethylene bags. A completely randomized block design with five replications and one plant per plot was applied. At 30 and 45 days after emergence, shoots and roots were collected for analysis. Shoot analysis measured the total number of leaves, leaf area, stem diameter, plant height, and fresh and dry matter weights. Root analysis evaluated fresh and dry matter weights and root architecture by image analysis, which recorded root traits including primary, secondary, and tertiary root numbers; length and total volume; and the percentage of secondary roots present in the upper third of the primary root. Shoot and root data of fresh and dry weights were submitted to variance analysis and compared using Tukey’s test (5%). The remaining root data were standardized for variance 1 and studied through principal component analysis. The ‘C13’ citrange showed good shoot development, with greater leaf area, plant height, stem diameter, and shoot fresh and dry matter weights during both evaluation periods, followed by the ‘Troyer’ citrange. The ‘Cleopatra’ mandarin had the smallest shoot and root development during both evaluation periods, presenting lower primary root, secondary root, and root volume than other cultivars evaluated at the same time. The ‘Troyer’ citrange had fewer roots in the upper third of the primary root and a higher root insertion angle.

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Section: Root Architecturesupporting

confidence: 79%

Section: Root Architecturementioning

confidence: 65%

Initial shoot development and root architecture of citrus rootstocks

Cruz

Carvalho

Costa

et al. 2019

SCA

View full text Add to dashboard Cite

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“…The orange root systems contain dense fibrous roots within the top soil (10-30 cm) which expands radically with time as the tree grows and decreases with soil depth [10]. The distribution of fibrous roots within the soil profile increases the chance of water and nutrient uptake [11]. Studies conducted in Florida on citrus root distribution have shown that citrus has a potential to have extensive roots under favorable soil conditions [12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Legume Cover Crops on Soil Moisture and Orange Root Distribution

Mulinge¹,

Saha²,

Mounde³

et al. 2017

IJPSS

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Inadequate rain is a major hindrance to soil moisture and crop root growth in arid and semi-arid areas of Kenya. A field study was conducted in Ganda, Vitengeni and Matuga locations within the coastal lowland region of Kenya from May, 2012 to April, 2015 to evaluate the effects of three leguminous cover crops on soil moisture retention and orange tree feeder root distribution. Treatments included mucuna (Mucuna pruriens), cowpea (Vigna unguiculata), dolichos (Lablab purpureus) cover crops and unplowed fallow of natural vegetation as a control. The experiment was laid out in randomized complete block design (RCBD) and each treatment was replicated four times. Data collected were: soil particle size distribution, soil moisture content and orange dry root density. The data collected was subjected to analysis of variance (ANOVA) using procedures of R statistical analysis version 3.3.2. Mean separation was done using the least significant difference (LSD) value at 5% level of significance. Results indicated that mucuna, dolichos and cowpea cover crops significantly (P=.05) increased soil moisture content. The mucuna treated plots recorded an Original Research Article

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