Changes in biochemical constituents and induction of early sprouting by triadimefon treatment in white yam (Dioscorea rotundata Poir.) tubers during storage

Jaleel, Cheruth Abdul; Gopi, R.; Manivannan, P.; Kishorekumar, A.; Gomathinayagam, M.; Panneerselvam, R.

doi:10.1631/jzus.2007.b0283

Cited by 48 publications

(27 citation statements)

References 29 publications

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“…Hexaconazole is an active member of the triazole family, with plant growth regulating properties (Jaleel et al 2007). It can cause many morphological and physiological changes, such as reducing shoot growth and stimulating root growth (Jaleel et al 2006, Johnson et al 2008, Navarro et al 2009).…”

Section: Resultsmentioning

confidence: 99%

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Hexaconazole foliar application alleviates water deficit effects in common bean

Chehelpar

Tohidi-Moghadam

Ghoushchi

2016

Pesqui. Agropecu. Trop.

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RESUMOWater deficit disturbs crop physiology, causing a large number of changes in plant morphology, biochemistry and anatomy. These changes have an extensive effect on crop growth and yield (Reisdorph & Koster 1999), and the extent of the negative impact is known to be genotypedependent (Bannayan et al. 2008). Plants can respond and adapt to water stress by altering their cellular metabolism and triggering various defence mechanisms (Bohnert & Jensen 1996) Currently, the world is facing many problems of crop production. Among them, water deficit is the most dangerous one. This study aimed at evaluating the possibility of enhancing the water deficit tolerance of common bean plants, during two growth stages, by the exogenous application of hexaconazole. The experimental design was completely randomized, in a factorial arrangement, with three replicates. Hexaconazole (0 mg L -l , 10 mg L -l and 20 mg L -l ) was sprayed at flowering (R3), at 60 days after sowing, and at the grain-filling stage (R8), at 90 days after sowing. After the application, the plants were subjected to water deficit by withholding irrigation for seven days. Although all hexaconazole concentrations improved the water deficit tolerance in bean plants, in terms of plant growth and yield, the application of 20 mg L -l provided a better protection, when compared to the other concentrations (p < 0.01). The exogenous application of hexaconazole improved the water deficit tolerance, if compared to non-treated plants, affecting the morphological characteristics, yield components, total chlorophyll, proline, relative water content and enzymatic antioxidants (p < 0.01). The results showed that the hexaconazole-induced tolerance to water deficit in common bean is related to changes in the growth variables and antioxidants. In conclusion, the hexaconazole application could improve the bean growth and yield under water deficit conditions. ) foi pulverizado na floração (R3), aos 60 dias após a semeadura, e no enchimento de grãos (R8), aos 90 dias após a semeadura. Após a aplicação, as plantas foram submetidas a deficiência hídrica, pela supressão da irrigação por sete dias. Apesar de todas as concentrações de hexaconazole terem melhorado a tolerância à deficiência hídrica, em plantas de feijão, a aplicação de 20 mg L -l proporcionou melhor proteção, em comparação com as outras concentrações (p < 0,01). A aplicação exógena de hexaconazole melhorou a tolerância ao déficit hídrico, em relação a plantas não tratadas com hexaconazole, afetando as características morfológicas, componentes de produtividade, clorofila total, prolina, teor relativo de água e antioxidantes enzimáticos (p < 0,01). Os resultados mostraram que a tolerância ao déficit hídrico induzida por hexaconazole, em feijoeiro, está relacionada com as alterações nas variáveis de crescimento e antioxidantes. Em conclusão, a aplicação de hexaconazole poderia melhorar o crescimento e o rendimento do feijoeiro sob condições de déficit hídrico. KEY-WORDS: PALAVRAS-CHAVE:Phaseolus vulgaris L.; pr...

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Section: Resultsmentioning

confidence: 99%

“…It exhibits plant growth regulation properties (Fletcher et al 2000) and induces many morphological and physiological changes in plants (Jaleel et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Hexaconazole foliar application alleviates water deficit effects in common bean

Chehelpar

Tohidi-Moghadam

Ghoushchi

2016

Pesqui. Agropecu. Trop.

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“…In contrast to cultivated tubers, little is known about the proximate composition and reasons to expect that some of the species differ in composition from common agricultural varieties [23]. Furthermore, several species of yams also have medicinal properties and the tuber contains some pharmacologically active substances including dioscorine, saponin and sapogenin [24].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Biochemical Composition of Yams (Dioscorea spp.) Landraces from Southwest Ethiopia

Mulualem¹,

Mekbib²,

Hussein³

et al. 2018

Agrotechnology

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Yams make a significant contribution to food security and medicinal importance in developing countries. In Ethiopia, there is insufficient scientific study on biochemical composition of Ethiopian yams. In order to fill the knowledge gap, this study was conducted to assess the biochemical composition of yams collected from Southwest Ethiopia. Flour from storage tuber of 36 yam landraces collected and the samples run in duplicates. Data on 14 biochemical traits were collected and subjected to various data analysis. Results of the analysis of variance indicated significant variation (p<0.01) among the landraces on organic matter, total nitrogen, protein, fat, carbohydrate, total phosphorus, total energy, tannin and saponin contents. The flour moisture contents ranged from 17.75 to 27.47% with a mean of 22.03%. The ranges of dry matter (15.80 to 27.28%), organic matter (21.38 to 43.56%), ash (1.13 to 3.56%), organic carbon (0.63 to 1.98 g), crude fiber (0.41 to 2.05%), total nitrogen (1.00 to 1.32%), protein (6.25 to 8.28%), fat (0.09 to 0.65%), carbohydrate (12.71 to 33.94%), total phosphorus (23.7 to 53.0 mg/100 g), total energy (92.66 to 173.30 kcal/100 g DM), tannin (19.80 to 181.0 mg/100 g) and saponin (2.31 to 13.94 mg/100 g) contents. The cluster and distance analysis of biochemical traits showed the existence of eight divergent groups. The maximum inter cluster distance was found between clusters VI and VII (133.59), followed by clusters V and VI (109.19), clusters II and VI (105.22), clusters I and VI (100.42), and clusters III and VI (89.25) in order of magnitudes. Maximum genetic divergence between the clusters points out the fact that hybridization among the landraces included with them would produce potential and meaningful hybrids and desirable segregants. Besides, investigation of the existed yam landraces based on molecular marker analysis is vital for better assessment of genetic diversity of yams in Ethiopia.

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“…Salinity affects the dry matter production in relation to physiological processes, biochemical reactions or a combination of these factors (Jaleel et al 2007b). Improving plant resistance to salt, although not a final solution, may provide field stability in subsistence agriculture (Flowers and Yeo 1995).…”

Section: Introductionmentioning

confidence: 99%

Interactive effects of triadimefon and salt stress on antioxidative status and ajmalicine accumulation in Catharanthus roseus

et al. 2007

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The ability of triadimefon (TDM), a triazole group of fungicide, to ameliorate salinity stress was studied in Catharanthus roseus (L.) G. Don. plants subjected to sodium chloride (NaCl) treatment. NaCl treatment at 80 mM level decreased overall growth of this plant and reduced the chlorophyll contents, protein, antioxidant enzymes such as peroxidase (POX), superoxide dismutase (SOD) and polyphenol oxidase (PPO). The root alkaloid ajmalicine got increased under salt treatment. When these stressed plants were treated with TDM at 15 mg l -1 concentration minimized the inhibitory effects of NaCl stress by increasing the root, shoot growth and leaf area and increased dry weight (DW), chlorophyll, protein contents and the activities of antioxidant enzymes like POX, SOD and PPO, thereby paved the way to overcome the salinity injury. The quantity of ajmalicine was again increased with the TDM treatment when compared to both control and NaCl treated plants. From these results, it is proved that the fungicide TDM have great role in the enhancement of plant antioxidative enzymes and the enhanced scavenging of potentially harmful free radicals, as a mechanism of protecting plants against noxious oxidative stress from the environment and also in the enhancement of active principles.

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Changes in biochemical constituents and induction of early sprouting by triadimefon treatment in white yam (Dioscorea rotundata Poir.) tubers during storage

Cited by 48 publications

References 29 publications

Hexaconazole foliar application alleviates water deficit effects in common bean

Hexaconazole foliar application alleviates water deficit effects in common bean

Analysis of Biochemical Composition of Yams (Dioscorea spp.) Landraces from Southwest Ethiopia

Interactive effects of triadimefon and salt stress on antioxidative status and ajmalicine accumulation in Catharanthus roseus

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