Genotypic Response of Sugarcane Under Induced Moisture Deficit Conditions

Meena, Mintu Ram; Murthy, N. S.; Kumar, Ravinder; Chhabra, M. L.

doi:10.5958/j.2229-4473.26.1.033

Cited by 7 publications

(4 citation statements)

References 5 publications

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“…It may be due to the fact that varieties Co 0238 and CoS 767 maintained higher RWC content, water potential, photosynthetic rate and stomatal conductance at 40% (mild stress) and 30% (severe stress) ASM levels than CoH 128 and CoJ 64. Genotypic differences in relation to moisture stress condition have also been observed byMeena et al (2013);Yadav and Prasad (1988).…”

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confidence: 54%

“…Approximately 2.97 lakh ha of cane area is drought prone affecting the crop at one or other stage of growth in every state of India (Vision 2030 Sugarcane Breeding Institute, Coimbatore). Soil moisture deficit coincide with summer period, creating imbalance of water potential in plant tissues, affecting crop growth and development leading to drastic reductions in cane growth and quality (Meena et al 2013). Taking into consideration imparting drought during formative phase of crop growth may be useful in identifying drought tolerant genotypes because growth behavior of different varieties remains in different soil and agro-climatic conditions in response to change in rhizospheric environment under irrigated and un-irrigated conditions.…”

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confidence: 99%

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Genotypic differences in growth behavior and quality parameters of sugarcane (Saccharum officinarum) varieties under moisture stress conditions

Pooja¹,

Nandwal²,

Chand³

et al. 2019

Indian J Agri Sci

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A field experiment was conducted at CCS Haryana Agricultural University, Regional Research Station, Karnal to investigate the effect of available soil moisture regimes on productivity potential of sugarcane (Saccharum officinarum L.) varieties during 2014-15 and 2015-16. The experiment consists of three moisture regimes based on available soil moisture (ASM), i.e. irrigation at 50% ASM (control), 40% ASM (mild stress) and 30% ASM (severe stress) in main plots and four commercial sugarcane varieties differing in maturity duration, i.e. CoS 767 (Mid late), CoH 128 (Mid late), CoJ 64 (Early) and Co 0238 (Early) in sub plot was laid out in split-plot design with three replications. Soil moisture treatments were initiated after 45 days of planting (DAP). Higher germination was recorded in CoJ 64 (65.5%) and CoS 767 (58.0%) as compared to Co 0238 (49.0%) and CoH 128 (48.5%) at 45 DAP. At 30% ASM levels, higher reduction in stalk height was recorded in CoH 128 (33.6 and 85.96 cm) and CoJ 64 (36.33 and 83.03cm) as compared to CoS 767 (41.83 and 107.06 cm) and Co 0238 (50.6 and 122.76 cm) in June and July, respectively. Total number of tillers was reduced by 12.99, 14.37 and 14.5% at 40% ASM level and 16.97, 24.29 and 20.04% at 30% ASM level as compared to irrigation at 50% ASM level in the month of May, June and July, respectively. Significantly higher values of brix, pol and CCS (%) were recorded in CoJ 64 and Co 0238 as compared to CoS 767 and CoH 128 at 8th, 10th and 12th month at all levels of ASM. Varieties and ASM levels had no effect on the specific activity of sucrose synthase. Sugar yield significantly reduced by 31.11 per cent at 40% ASM level and 40.57 per cent at 30% ASM level, respectively as compared to 50% ASM level. Co 0238 and CoS 767 showed minimum reduction in yield than CoH 128 and CoJ 64. From the present study it is concluded that Co 0238 and CoS 767 are identified relatively more tolerant at 30% and 40% ASM levels than CoH 128 and CoJ 64.

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confidence: 54%

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confidence: 99%

Genotypic differences in growth behavior and quality parameters of sugarcane (Saccharum officinarum) varieties under moisture stress conditions

Pooja¹,

Nandwal²,

Chand³

et al. 2019

Indian J Agri Sci

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“…Drought has the greatest impact on complex traits such as shoot, leaf, and root parameters; however, their genetic control varies between genotypes. Under water stress, highly exploitable genetic variation for cane and sugar yield was observed ( Hemaprabha et al., 2006 ; Meena et al., 2013 ; Basnayake et al., 2015 ; Meena et al., 2020 ). Through conventional breeding, varieties that have high yield and high sucrose content and are drought tolerant are produced.…”

Section: Breeding For Drought and Salt Tolerance In Sugarcanementioning

confidence: 99%

Drought and salinity stresses induced physio-biochemical changes in sugarcane: an overview of tolerance mechanism and mitigating approaches

Kumar,

Sagar,

Verma

et al. 2023

Front. Plant Sci.

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Sugarcane productivity is being hampered globally under changing environmental scenarios like drought and salinity. The highly complex nature of the plant responses against these stresses is determined by a variety of factors such as genotype, developmental phase of the plant, progression rate and stress, intensity, and duration. These factors influence plant responses and can determine whether mitigation approaches associated with acclimation are implemented. In this review, we attempt to summarize the effects of drought and salinity on sugarcane growth, specifically on the plant’s responses at various levels, viz., physiological, biochemical, and metabolic responses, to these stresses. Furthermore, mitigation strategies for dealing with these stresses have been discussed. Despite sugarcane’s complex genomes, conventional breeding approaches can be utilized in conjunction with molecular breeding and omics technologies to develop drought- and salinity-tolerant cultivars. The significant role of plant growth-promoting bacteria in sustaining sugarcane productivity under drought and salinity cannot be overlooked.

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“…The variation in genotypic response for different cane parameters depends upon the duration and intensity of stress. The response of highly exploitable genetic variation for cane and sugar yield was observed under water stress (Hemaprabha et al 2004(Hemaprabha et al , 2006Vasantha et al 2005;Basnayake et al 2012;Meena et al 2013Meena et al , 2014. Among various morphological traits, shoot parameters such as stalk height, tiller population, stalk diameter, stalk weight, number of millable canes; leaf parameters such as length and width of leaves and number of green leaves; and root parameters such as root length, root surface area, and volume are most affected under drought stress (Table 4).…”

Section: Selection For Drought-tolerant Clonesmentioning

confidence: 99%

Current breeding and genomic approaches to enhance the cane and sugar productivity under abiotic stress conditions

et al. 2020

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Sugarcane (Saccharum spp.) crop is vulnerable to many abiotic stresses such as drought, salinity, waterlogging, cold and high temperature due to climate change. Over the past few decades new breeding and genomic approaches have been used to enhance the genotypic performance under abiotic stress conditions. In sugarcane, introgression of genes from wild species and allied genera for abiotic stress tolerance traits plays a significant role in the development of several stress-tolerant varieties. Moreover, the genomics and transcriptomics approaches have helped to elucidate the key genes/TFs and pathways involved in abiotic stress tolerance in sugarcane. Several novel miRNAs families /proteins or regulatory elements that are responsible for drought, salinity, and cold tolerance have been identified through high-throughput sequencing. The existing sugarcane monoploid genome sequence information opens new gateways and opportunities for researchers to improve the desired traits through efficient genome editing tools, such as the clustered regularly interspaced short palindromic repeat-Cas (CRISPR/Cas) system. TALEN mediated mutations in a highly conserved region of the caffeic acid O-methyltransferase (COMT) of sugarcane significantly reduces the lignin content in the cell wall which is amenable for biofuel production from lignocellulosic biomass. In this review, we focus on current breeding with genomic approaches and their substantial role in enhancing cane production under the abiotic stress conditions, which is expected to provide new insights to plant breeders and biotechnologists to modify their strategy in developing stress-tolerant sugarcane varieties, which can highlight the future demand of cane, bio-energy, and viability of sugar industries.

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Genotypic Response of Sugarcane Under Induced Moisture Deficit Conditions

Cited by 7 publications

References 5 publications

Genotypic differences in growth behavior and quality parameters of sugarcane (Saccharum officinarum) varieties under moisture stress conditions

Genotypic differences in growth behavior and quality parameters of sugarcane (Saccharum officinarum) varieties under moisture stress conditions

Drought and salinity stresses induced physio-biochemical changes in sugarcane: an overview of tolerance mechanism and mitigating approaches

Current breeding and genomic approaches to enhance the cane and sugar productivity under abiotic stress conditions

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