Physiological and Biochemical Responses in Onion Crop to Drought Stress

Ghodke, Pranjali; Andhale, P.S.; Gijare, U.M.; Thangasamy, A.; Khade, Yogesh; Mahajan, Vijay; Singh, Manjeet

doi:10.20546/ijcmas.2018.701.247

Cited by 30 publications

(23 citation statements)

References 35 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such favourable effect of irrigation at the intermediate and/or higher treatments than lower irrigation treatment might be due to better availability of moisture in root zone during entire garlic growth period and it is well known that water plays a crucial in nutrients uptake and transport and photosynthesis which favoured the growth and then reflected bulbs yield and its components [3]. Similar findings were obtained by [15] and [16] who showed that, drought is one of the major stress that adversely influences on growth and yield of crops. [17], who reported that, irrigation 80 or 100 % ETC provided, significantly, higher total and marketable bulbs yield, bulb weight, clove weight and cloves number bulb -1 than 60 % ETC of garlic.…”

Section: Discussionsupporting

confidence: 61%

Integrated Use of Potassium and Soil Mulching on Growth and Productivity of Garlic (<i>Allium sativum</i> L.) under Deficit Irrigation

Barakat

Osman

Semida

et al. 2019

ILNS

View full text Add to dashboard Cite

This study was carried out during the winter seasons of 2016 and 2017 at private farm in Beni Suief Governorate, Egypt to investigate the integrative use of potassium levels (24, 48, 72 and 96 kg K2O fed-1) and soil mulching (rice straw and bare soil) on growth and productivity of garlic under three levels of surface irrigation (60, 80 and 100 % of crop evapotranspiration (ETC)). The experimental layout was a spit-spilt plot system based on Randomized Complete Blocks Design. Irrigation levels, potassium rates and mulch types were randomly allocated in the main, sub and sub-sub plots, orderly. The obtained results showed that, the amount of irrigation at 80 and/or 100 % ETC was accompanied increases by plant height, leaves number, leaf area and dry weight plant-1, total bulbs yield, individual bulb weight, cloves weight and number bulb-1 compared to irrigation 60 % ETC. The application of potassium from 24 to 48 and further to 72 and 96 kg K2O fed-1 gave gradual increments in the aforementioned growth and productivity of traits. The rice straw mulch augmented all previous growth, total bulbs yield and its components compared to bare soil. Generally, the 1st order interaction between irrigation percent at 100 and/or 80 % ETC × potassium rate at 96 and/or 72 kg K2O fed-1, irrigation percent at 80 and/or 100 % ETC × rice straw, potassium rate at 96 kg K2O fed-1 × rice straw and the 2nd interaction of irrigation percent at 100 % ETC × potassium rate at 96 kg K2O fed-1 × rice straw mulch had pronounced effects on morphological characters and bulbs yield and its components compared to other combined treatments.

show abstract

Section: Discussionsupporting

confidence: 61%

Integrated Use of Potassium and Soil Mulching on Growth and Productivity of Garlic (<i>Allium sativum</i> L.) under Deficit Irrigation

Barakat

Osman

Semida

et al. 2019

ILNS

View full text Add to dashboard Cite

show abstract

“…In this study, it was found that proline content significantly increased in wheat leaves under drought stress and it was more pronounced in Sirvan as drought tolerant cultivar compared to Shiraz as drought sensitive cultivar (Figure 2). This increase in proline content is proved to be essential for stress tolerance due to active role of proline in osmotic adjustment, protection of enzyme structure, stabilization of membranes and defense against hydroxyl radicals (Nayyar and Walia 2003;de-Lacerda et al 2003;Sourour et al 2017;Ghodke et al 2018). Proline has also been shown to act as a molecular chaperone involved in protection of protein integrity and enhancement of the activities of different key enzymes (Ashraf and Foolad 2007;Szabados and Savoure 2009;Sourour et al 2017;Ghodke et al 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Several plants modify their metabolism under water deficit by accumulating proline, soluble carbohydrates, organic acids, and amino acids (Lobato et al 2009). Previous studies have suggested that proline accumulation contributes to increase osmotic stress tolerance (Yamada et al 2005;Silva Ortega et al 2008;Verbruggen and Hermans 2008;Soltan Shahattary and Mansourifar 2017;Sourour et al 2017;Ghodke et al 2018). However, the significance of proline accumulation is still controversial, and it is unclear whether proline accumulation in plant tissues confers some adaptive advantages to the plant under osmotic stress or it is a consequence of stress induced changes in metabolism (Yamada et al 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Transgenic plants overexpressing P5CS accumulate more proline than the control plants and are tolerant to osmotic stress (Kavi Kishor et al 1995). Expression of proline metabolizing enzymes and proline levels have been reported for transgenic plants (De Ronde et al 2001;De Ronde et al 2004;Molinari et al 2004;Su and Wu 2004), seedlings (Phutela et al 2003), and for plants exposed to shock treatments (Igarashi et al 1997;Soltan Shahattary and Mansourifar 2017;Sourour et al 2017;Ghodke et al 2018).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

P5CS expression level and proline accumulation in the sensitive and tolerant wheat cultivars under control and drought stress conditions in the presence/absence of silicon and salicylic acid

Maghsoudi

Emam

Niazi‎

et al. 2018

Journal of Plant Interactions

View full text Add to dashboard Cite

The effects of silicon (Si) and salicylic acid (SA) applications on proline content and expression of Δ 1pyrrolin-5-carboxylate synthetase (P5CS) were examined under different drought levels and different drought exposure times. Two wheat cultivars, a drought tolerant and a drought sensitive were used. The experiment was a factorial based on completely randomized design with three replicates. Expression analysis by the quantitative real time PCR showed that the tolerant cultivar had significantly higher P5CS expressions compared to the sensitive one under drought stress. In sampling time points, the maximum level of mRNA was observed at 48 h after stress was applied. At 48 h after stress induction, the expression of P5CS was almost 3.1 fold higher in the tolerant cultivar compared to the sensitive one. In both cultivars, gene expression decreased from 48 to 72 h. The stressed plants treated with Si + SA showed a higher expression. Proline content started to increase by Si and SA treatments and the maximum proline content was obtained at simultaneous application of Si + SA. Drought stress significantly reduced chlorophyll content, relative water content and leaf water potential of both cultivars, while increased electrolyte leakage (EL) of the leaves. In contrast, foliar-applied Si and SA significantly increased these parameters and reduced EL, and the effect of simultaneous application of Si and SA was greater. The results suggest that the P5CS is a stress inducible gene. This gene has the potential to be used for improvement of drought stress tolerance in wheat. Network analysis highlighted positive interaction of osmotic stress, drought and cold stress on P5CS1 and the regulatory role of MYB2, ERF-1, and EIN3 transcription factors. In conclusion, alleviation of drought stress by application of Si and SA was associated partially with enhanced expression of P5CS gene and following proline accumulation.

show abstract

“…Many reports illustrated the ability of proline to counteract water stress where spraying cotton plants grown under conditions of low soil water potential with proline solutions counteracted the effects of stress, especially at moderate and high stresses [44]. Proline has also been shown to act as a molecular chaperone involved in protection of protein integrity and enhancement of the activities of different key enzymes [45].…”

Section: Plant Yield Parametersmentioning

confidence: 99%

Reduction of drought effect on peroxidase, catalase, chlorophyll content and yield of broad bean (Vicia faba L.) by proline and salicylic acid treatments

2019

Adv. Environ. Biol

View full text Add to dashboard Cite

Physiological and Biochemical Responses in Onion Crop to Drought Stress

Cited by 30 publications

References 35 publications

Integrated Use of Potassium and Soil Mulching on Growth and Productivity of Garlic (<i>Allium sativum</i> L.) under Deficit Irrigation

Integrated Use of Potassium and Soil Mulching on Growth and Productivity of Garlic (<i>Allium sativum</i> L.) under Deficit Irrigation

P5CS expression level and proline accumulation in the sensitive and tolerant wheat cultivars under control and drought stress conditions in the presence/absence of silicon and salicylic acid

Reduction of drought effect on peroxidase, catalase, chlorophyll content and yield of broad bean (Vicia faba L.) by proline and salicylic acid treatments

Contact Info

Product

Resources

About