Monitoring wheat root development in a rainfed vertisol: Tillage effect

Muñoz‐Romero, Verónica; Benítez‐Vega, Jorge; López‐Bellido, Luis; López‐Bellido, Rafael J.

doi:10.1016/j.eja.2010.05.004

Cited by 57 publications

(33 citation statements)

References 36 publications

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“…Considering the need for reducing time, labor and cost of the traditional methods of root analysis, the minirhizotron technique is an alternative method for evaluating root development (Muñoz-Romero et al, 2010). This method is based on the visualization of root growth in soil profile by catching pictures or videos through a transparent interface.…”

Section: Irrigation and Fertigationmentioning

confidence: 99%

“…As compared to canopy traits, there is still few data about root systems and this lack of information is mainly due to the methodological difficulties related to root data sampling (Muñoz-Romero et al, 2010). In addition, the variability of soil physical, chemical and biological properties may result in variable information about root system distribution (van Noordwijk, 1993;Vasconcelos et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Root growth and distribution in sugarcane cultivars fertigated by a subsurface drip system

Ohashi¹,

Pires²,

Ribeiro

et al. 2015

Bragantia

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Despite of the agronomic importance for water management, few studies of sugarcane roots have been performed under field conditions during the crop cycle. The aim of this study was to determine the cumulative root density (L A ), root distribution on soil profile and the effective rooting depth (ERD) for three sugarcane cultivars using the minirhizotron method. A field experiment was done with sugarcane cultivars IACSP94-2094, IACSP94-2101 and SP79-1011 grown under subsurface drip fertigation. Soil chemical and physical characteristics were also evaluated. Root evaluations were taken at 38, 58, 123, 185 and 205 days during the second ratoon, considering the soil profile until 0.8 m depth. The highest L A and root growth rates were found up to 0.4 m soil layer for all cultivars. Root growth rate varied during the crop cycle, with the highest values being found between 38 and 58 days after ratoon (DAR). There was a genotypic variation in root growth, with IACSP94-2101 showing the highest L A of 12.9 mm cm

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Section: Irrigation and Fertigationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Root growth and distribution in sugarcane cultivars fertigated by a subsurface drip system

Ohashi¹,

Pires²,

Ribeiro

et al. 2015

Bragantia

View full text Add to dashboard Cite

show abstract

“…At almost every growth stage, the root morphological characteristics in the top 50 cm soil depth under no tillage with straw retention was significantly greater than that under the no-tillage and conventional tillage with straw removed treatment. Other researchers have found root to be greater in the upper soil layer under no tillage system due to greater availability of water and nutrients (Muñoz-Romero et al, 2010). The root growth patterns under straw removal treatments were similar because of their similar soil conditions.…”

Section: Discussionmentioning

confidence: 52%

Conservation Tillage Practices Optimizes Root Distribution and Straw Yield of Spring Wheat and Field Pea in Dry Areas

Yeboah¹,

Lamptey²,

Zhang³

2017

JAS

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The objective of this study was to evaluate the effect of conventional tillage with straw removed (T), no tillage with straw removed (NT), no tillage with straw retained on the soil surface (NTS) and conventional tillage with straw incorporated (TS) on soil moisture, root growth and straw yield under rain-fed conditions. Findings of this research show that NTS and to a lesser extent, TS decreased soil bulk density in the 0-10 cm soil depth by approximately 3.35% and 2.75% compared to T and NT in spring wheat and field pea plots respectively. No tillage with straw retained (NTS) had greater soil moisture content (0-30 cm) at jointing, anthesis and milking stages compared with NT and T treatments with average 18.57% and 29.67% increase (P < 0.05) in spring wheat and field pea respectively. Compared with T and NT, root length, root surface area, root diameter and root volume at 0-50 cm soil depth under straw treated soils, especially with no tillage were significantly increased. Root length, surface area and root diameter in the 0-80 cm differed among the treatments in the order of NTS > TS > NT > T at all the sampling stages in both crops. No tillage with straw retention had the greatest straw yield of 4897 kg ha -1 in spring wheat and 2759 kg ha -1 in field pea, representing a significant increase of 20.61% and 22.74% compared to NT and T respectively. These results suggest that NTS could enhance spring wheat and field pea yield and water uptake via stimulating root growth, and therefore a practical way to improve crop productivity.

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“…Further, total root length, maximum root length and root density increase or decrease extremely with a small change in root diameter and decrease in root diameter would increase crop yield under drought. Signiicant reduction in root diameter, total root length and root density under drought conditions has been previously documented [37,54]. Two MTAs were identiied for RD, each in GLM and MLM.…”

Section: Root Diametermentioning

confidence: 99%

“…For maximum grain yield in wheat, active and well-developed root system is necessary [36,37]. Table 2.…”

Section: Root Trait Analysis and Its Signiicance To Droughtmentioning

confidence: 99%

Association Mapping of Root Traits for Drought Tolerance in Bread Wheat

Ahmad¹

2017

Wheat Improvement, Management and Utilization

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Bread wheat (Triticum aestivum L., 2n = 6x = 42, AABBDD) is one of the most important crops, making staple food for more than 40 countries and over 35% of the global population. Drought stress is among the major constraints to wheat production as it afects plant growth, gene expression and yield potential of the crop. Development of elite wheat cultivars with the ability to grow and reproduce in water-limited soils seems to be the most enduring solution of addressing drought stress. A total of 100 lines including well-adapted wheat cultivars were evaluated for important root traits and complemented with 102 PCR-based markers aiming to understand their genetic structure and to identify molecular markers that are closely associated to quantitative trait loci (QTLs) of important root traits. Alleles per locus are counted and polymorphic information content (PIC) values are calculated. Population structure of these lines was analyzed with general linear model (GLM) and mixed linear model (MLM) approaches for identiication of QTLs associated with important root traits. The results indicated the presence of two novel QTLs on the homoeologous group 2 and group 5 of wheat that may be related to drought stress resistance. Our results may facilitate the development of agronomically desirable drought stress-resistant wheat germplasm.

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Monitoring wheat root development in a rainfed vertisol: Tillage effect

Cited by 57 publications

References 36 publications

Root growth and distribution in sugarcane cultivars fertigated by a subsurface drip system

Root growth and distribution in sugarcane cultivars fertigated by a subsurface drip system

Conservation Tillage Practices Optimizes Root Distribution and Straw Yield of Spring Wheat and Field Pea in Dry Areas

Association Mapping of Root Traits for Drought Tolerance in Bread Wheat

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