Water Stress Revealed Physiological and Biochemical Variations in Taro [Colocasia esculenta (L.) Schott] Varieties/Genotypes

More, Sanket J.; Kumari, Sarita; Kumar, Jitender; Ravi, V.

doi:10.20546/ijcmas.2019.808.260

Cited by 4 publications

(7 citation statements)

References 24 publications

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“…[6] The ICAR-CTCRI has released many varieties of C. esculenta. [7] Sree Kiran, Sree Rashmi, Sree Pallavi, and Muktakeshi are the most commonly cultivated varieties. The distinctive characteristics of the tubers, leaves, and even the petiole's colors give each variety a distinct individuality.…”

Section: Abstract a R T I C L E I N F Omentioning

confidence: 99%

Comparative Antioxidant and Phytochemical Evaluation of Selected Varieties of <i>Colocasia esculenta</i> (L.) Schott Leaves

Varghese V,

Nair,

Joseph

2024

Int. J. Pharm. Sci. Drug Res.

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The present study aims to conduct phytochemical screening and evaluation of the antioxidant potential of ethanol and acetone leaf extracts of the four commonly cultivating varieties of Colocasia esculenta they are Sree Kiran, Sree Rashmi, Sree Pallavi and Muktakeshi. In addition, the polyphenolic composition of Muktakeshi's ethanolic leaf extract was investigated using LCMS. The phytochemical screening of the varieties indicated the presence of valuable secondary compounds like alkaloids, phenols, flavonoids, terpenoids, saponins tannins etc. in all varieties. The total phenol and flavonoid contents were found to be higher in the ethanolic leaf extract of Muktakeshi. All the leaf extracts exhibited a moderate antioxidant ability whereas the ethanolic leaf extract of Muktakeshi showed comparatively higher antioxidant activity with the least IC50 value in both DPPH and nitric oxide assays. The LCMS studies revealed the presence of polyphenolic compounds like quercetin, kaempferol, gallic acid, caffeic acid, luteolin 7-rutinoside, chlorogenic acid, vitexin, and rutin in the ethanolic leaf extract of Muktakeshi. It is a good source of many potentially effective bioactive compounds and is useful in preventing oxidative stress-associated diseases in humans. In the present study, it was found that considerable variations exist in the phenol-flavonoid content and antioxidant properties of the Colocasia varieties studied.

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Section: Abstract a R T I C L E I N F Omentioning

confidence: 99%

Comparative Antioxidant and Phytochemical Evaluation of Selected Varieties of <i>Colocasia esculenta</i> (L.) Schott Leaves

Varghese V,

Nair,

Joseph

2024

Int. J. Pharm. Sci. Drug Res.

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“…In cocoa, chlorophyll content and photosynthesis are affected under water deficit stress due to damage to membranes and photosynthetic apparatus (Janani et al, 2019). Reduction in chlorophyll content under drought stress has been studied in crops like sugarcane (Silva et al, 2007), peanut (Meher et al, 2018), taro (More et al, 2019) and wheat (Khayatnezhad and Gholamin, 2020). A similar trend was observed in the chlorophyll stability index under water stress conditions (Table 3).…”

Section: Physiological Parametersmentioning

confidence: 99%

“…Several studies have found that maintaining a high RWC during stress conditions indicates drought tolerance (Silva et al, 2007). Relative water content (RWC), cell membrane stability index and chlorophyll content are appropriate tools to measure drought stress tolerance in many plants (More et al, 2019). These physiological parameters contribute to a major role in maintaining plant vitality and survival during drought stress.…”

Section: Introductionmentioning

confidence: 99%

Physiological response of cocoa (Theobroma cacao L. ) genotypes to drought

Suchithra

Suma

Minimol

et al. 2022

JPC

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Drought is one of the major environmental stresses affecting crop productivity worldwide. Climate change is expected to result in a rise in the number and intensity of drought events in the coming decades, so climate-resilient crops that can withstand this stress are in high demand. There are few genotypes in cocoa where it can tolerate water deficit conditions. The objective of the current investigation was to evaluate the effect of drought stress on the photosynthetic and physiological parameters of six cocoa genotypes (Theobroma cacao L.) with two irrigation regimes (100% field capacity and 40% field capacity) under greenhouse conditions at Cocoa Research Station, Kerala Agricultural University, Thrissur. The effect of water deficit conditions on gas exchange and physiological parameters such as relative water content, membrane stability index, chlorophyll stability index, and chlorophyll content were evaluated. Drought stress conditions resulted in reduced photosynthetic rate, relative water content, chlorophyll content, chlorophyll stability and membrane stability. All genotypes revealed significant differences for most parameters with two irrigation regimes. Among the cocoa genotypes, P.IV 19.9, which is classified as a highly tolerant genotype, recorded better results for all the parameters studied under water deficit conditions at 40 per cent FC. The findings of this study support the classification of these genotypes as highly tolerant, tolerant, and susceptible. These parameters may be used as the most promising indicators to screen for drought tolerance in cocoa. The results of the study revealed that photosynthetic and physiological parameters have a significant role in imparting drought stress tolerance to cocoa. Furthermore, these selected drought-tolerant genotypes can be used in future crop improvement programmes in cocoa.

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“…Climate change alsoincreasing potential of flooding at rainy season which leaad to waterlogging stress [2], [3]. According to world estimates, average yield losses in agricultural crops up to 50% is mainly due to different abiotic stresses as a result of these changing climatic conditions [4]. Drought stress and waterlogging stress is a factor causing a decrease in the productivity of cultivated plants because it will inhibit photosynthesis, disrupt water use efficiency, and change the physiological, biochemical, morphological and molecular characteristics of plants [5].…”

Section: Introductionmentioning

confidence: 99%

Morphophysiology responses of taro on different soil water level

Cahyanti,

Santosa,

Sopandie

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to determine the response of growth and yield of taro plant genotypes to the level of soil water availability. The experiment was carried out using a divided plot design with the main plot being the rate of water application, namely: 60% FC (Field capacity), 80% FC, 100% FC, 120% FC and 140% FC, while the subplots were taro genotypes consisting of two types of dasheen (Ketan and California genotype), two types of eddoe (Satoimo and Jepang Hijau) also Xanthosoma (Talas Kuning). Parameters of plant growth observations included plant height, number of leaves, leaf area, stem diameter and width of canopy, while parameters of harvest observations included tuber fresh weight and total fresh weight. Physiological observations include chlorophyll content and number of stomata. Plant height of all types of taro was more vigor at 120 and 140% FC of water. For dasheen type taro, California taro with 140% FC treatment produced tuber fresh weight 36% higher than California taro plants at 60% FC treatment, while for Eddoetypetaro, Satoimo taro with 140% FC treatment produced tuber fresh weight 25% higher thanin 60% FC treatment. This proves that 5 genotypes of taro adaptive on waterlogging stress rather than drought stress. Satoimo and Jepang Hijau (eddoe type) are more adaptive to drought and wet soil conditions than talas Ketan, California and Talas Kuning (dasheen type).

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Water Stress Revealed Physiological and Biochemical Variations in Taro [Colocasia esculenta (L.) Schott] Varieties/Genotypes

Cited by 4 publications

References 24 publications

Comparative Antioxidant and Phytochemical Evaluation of Selected Varieties of <i>Colocasia esculenta</i> (L.) Schott Leaves

Comparative Antioxidant and Phytochemical Evaluation of Selected Varieties of <i>Colocasia esculenta</i> (L.) Schott Leaves

Physiological response of cocoa (Theobroma cacao L. ) genotypes to drought

Morphophysiology responses of taro on different soil water level

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