Root traits confer grain yield advantages under terminal drought in chickpea ( Cicer arietinum L.)

Ramamoorthy, P.; Krishnamurthy, L.; Upadhyaya, Hari D.; Vadez, Vincent; Varshney, Rajeev K.

doi:10.1016/j.fcr.2016.11.004

Cited by 87 publications

(62 citation statements)

References 83 publications

(155 reference statements)

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“…In order to elucidate the role of root traits contributing in grain yield, Gaur et al (2008) showed higher RLD and maximum root depth (RDp) in shallow soil could assist in increasing seed yield under drought stress. Likewise, Ramamoorthy et al (2017) also evidenced positive association of RLD and grain yield under drought stress in chickpea. However, positive association of root traits with grain yield under drought stress remains inconsistent across various environment (Zaman-Allah et al, 2011b), leading plant breeders reluctant to use this trait in breeding program for drought tolerance.…”

Section: Role Of Root Traits Contributing Drought Adaptationmentioning

confidence: 73%

Developing Climate-Resilient Chickpea Involving Physiological and Molecular Approaches With a Focus on Temperature and Drought Stresses

et al. 2020

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Chickpea is one of the most economically important food legumes, and a significant source of proteins. It is cultivated in more than 50 countries across Asia, Africa, Europe, Australia, North America, and South America. Chickpea production is limited by various abiotic stresses (cold, heat, drought, salt, etc.). Being a winter-season crop in northern south Asia and some parts of the Australia, chickpea faces low-temperature stress (0-15°C) during the reproductive stage that causes substantial loss of flowers, and thus pods, to inhibit its yield potential by 30-40%. The winter-sown chickpea in the Mediterranean, however, faces cold stress at vegetative stage. In late-sown environments, chickpea faces high-temperature stress during reproductive and pod filling stages, causing considerable yield losses. Both the low and the high temperatures reduce pollen viability, pollen germination on the stigma, and pollen tube growth resulting in poor pod set. Chickpea also experiences drought stress at various growth stages; terminal drought, along with heat stress at flowering and seed filling can reduce yields by 40-45%. In southern Australia and northern regions of south Asia, lack of chilling tolerance in cultivars delays flowering and pod set, and the crop is usually exposed to terminal drought. The incidences of temperature extremes (cold and heat) as well as inconsistent rainfall patterns are expected to increase in near future owing to climate change thereby necessitating the development of stress-tolerant and climate-resilient chickpea cultivars having region specific traits, which perform well under drought, heat, and/or low-temperature stress. Different approaches, such as genetic variability, genomic selection, molecular markers involving quantitative trait loci (QTLs), whole genome sequencing, and transcriptomics analysis have been exploited to improve chickpea production in extreme environments. Biotechnological tools have broadened our understanding of genetic basis as well as plants' responses to abiotic stresses in chickpea, and have opened opportunities to develop stress tolerant chickpea.

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Section: Role Of Root Traits Contributing Drought Adaptationmentioning

confidence: 73%

Developing Climate-Resilient Chickpea Involving Physiological and Molecular Approaches With a Focus on Temperature and Drought Stresses

et al. 2020

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“…Lata et al, (2017) have also observed a decrease in plant biomass with increasing concentrations of NaCl alongwith Boron. Modification to root system architecture may improve desirable agronomic traits in chickpea such as yield, drought tolerance and resistance to coarse soil texture as well as nutrient deficiencies (Chen et al, 2016;Ramamoorthy et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Physiological response of chickpea (Cicer arietinum L.) at early seedling stage under salt stress conditions

Mann

Kaur

Sanwal

et al. 2019

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Screening of chickpea lines for salt tolerance through seed germination and early seedling growth is crucial for their evaluation. Seeds of 30 chickpea genotypes were germinated on a sand bed irrigated with saline (3, 6, 9, 12 dS/m) and control solutions upto 30 days. At the early seedling stage (25-30 days), germination percentage, chlorophyll content, proline, root length, shoot length and seedling dry weight were found to be affected due to salinity. Salt tolerance index (STI) for plant biomass maintained a significant correlation with chlorophyll, proline, shoot length, and root length, which indicated that these parameters could be used as selection criteria for screening chickpea genotypes against salt stress. Significant differences in shoot length, root length, and seedling dry weight in 30-day-old seedlings were observed among selected chickpea genotypes as well. From the overall observation of germination characterstics and early seedling growth, it is concluded that the chickpea genotypes, HC-1, HC-5, ICC 867, ICC 5003, H-10-41 showed better salt tolerance as compared to the available salt tolerant check variety.

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“…Our research demonstrates selected endophytes increase root and shoot under drought conditions, which is similar to results on other crops (Mattos et al., ). Modification to root system architecture may improve desirable agronomic traits in chickpea such as yield, drought tolerance and resistance to coarse soil texture as well as nutrient deficiencies (Chen, Ghanem, & Siddique, ; Ramamoorthy, Lakshmanan, Upadhyaya, & Vadez, ).…”

Section: Discussionmentioning

confidence: 99%

Legume endosymbionts: Drought stress tolerance in second‐generation chickpea (Cicer arietinum) seeds

Kumari

Germida

Vujanovic

2018

J Agronomy Crop Science

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Chickpea is an important leguminous crop grown worldwide due to its nutritional and economic value. However, abiotic stress, primarily caused by drought, has limited chickpea production. This study highlights endosymbiotic plant growth promotion as well as alleviation of abiotic stress in germinating chickpea seeds and seedlings under drought stress conditions. Seed produced by F1 endosymbiotic plants under controlled environment was used to conduct this second‐generation (F2) study in the greenhouse. Fungal and bacterial endosymbionts improved seed germination and enhanced root and shoot growth in second‐generation seeds produced by applying drought stress without endophytes. Expression levels of antioxidant genes, proline, SOD‐superoxide dismutase and dehydrin, were downregulated, which characterizes enhanced oxidative stress tolerance and reduced reactive oxygen species (ROS) in host cells. The endosymbiont beneficial effect on plant resilience and improved phenotypes was translated into increased nutrient quality of second‐generation seed. This study indicates the potential of the fungal and bacterial endosymbionts to moderate drought stress in plants by triggering epigenetic changes inherited across chickpea generations which correlated with enhanced resilience and improved agricultural traits in this globally important crop.

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Root traits confer grain yield advantages under terminal drought in chickpea ( Cicer arietinum L.)

Cited by 87 publications

References 83 publications

Developing Climate-Resilient Chickpea Involving Physiological and Molecular Approaches With a Focus on Temperature and Drought Stresses

Developing Climate-Resilient Chickpea Involving Physiological and Molecular Approaches With a Focus on Temperature and Drought Stresses

Physiological response of chickpea (Cicer arietinum L.) at early seedling stage under salt stress conditions

Legume endosymbionts: Drought stress tolerance in second‐generation chickpea (Cicer arietinum) seeds

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