Effect of gibberellic acid and potassium silicate on physiological growth of Okra (Abelmoschus esculentus L.) under salinity stress

Ayub, Qasim

doi:10.19045/bspab.2018.70002

Cited by 20 publications

(7 citation statements)

References 29 publications

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“…Salt stress caused a reduction in the growth of all the parameters of the aerial part and the roots of tossa jute plants. This observation is commonly reported for glycophytes such as wheat (Alaoui et al, 2013), tomato (Zhang et al, 2017) rice (Prodjinoto et al, 2018); okra (Ayub et al, 2018;Gouveitcha et al, 2021). In tossa jute, other authors have reported that plant growth was inhibited by salt stress (Ghosh et al, 2013;Ben yakoub et al, 2019).…”

Section: Effect Of Salinity On Plant Growthsupporting

confidence: 60%

Response of tossa jute (Corchorus olitorius L.) salt stressed plants to external application of calcium and potassium

Belvida¹,

Eunice²,

Hermann³

et al. 2022

Int. J. Plant Physiol. Biochem.

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This study focused on the improving effect of external application of calcium and potassium on growth, ions and organic solutes accumulation in tossa jute plants grown under salt stress. Young plants were subjected in pots to ten treatments including the control without NaCl, 120 mM NaCl and a combination of 120 mM NaCl and an addition of 40 or 60 mM CaSO 4 , CaCl 2, K 2 SO 4 or KNO 3 . Plant growth, sodium, potassium, proline and soluble sugars contents were determined after two weeks. Results revealed that only the external application of CaSO 4 and K 2 SO 4 at 40 mM significantly improved the growth reduction induced by NaCl followed by CaCl 2 ; whereas at 60 mM, only CaSO 4 induced similar changes in plant growth. Only, the exogenous application of calcium at 40 mM induced a significant decrease (p<0.05) in the Na + content and a significant increase (p<0.001) of the K + /Na + ratio of leaves in comparison with salt stressed plants, while the two forms of calcium and K 2 SO 4 induced a significant increase (p=0.05) in the K + content. CaSO 4 had the best improving effects on plants growth under salt stress, followed by K 2 SO 4 and CaCl 2 at 40 mM. This improving effect is due to a better exclusion of Na + from the leaves, the maintenance of a high ionic selectivity ratio K/Na and/or a better accumulation of K + .

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Section: Effect Of Salinity On Plant Growthsupporting

confidence: 60%

Response of tossa jute (Corchorus olitorius L.) salt stressed plants to external application of calcium and potassium

Belvida¹,

Eunice²,

Hermann³

et al. 2022

Int. J. Plant Physiol. Biochem.

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“…Generally, applying potassium silicate (K2SiO3) to squash plants increased vegetative growth characters which could be referred to the role of silicon (Si) in extending and encouragement plant roots resulting in enhancing the capability to take up higher nutrients amounts from the soil. Moreover, positive effect of potassium on growth parameters especially dry weights of plant (Ayub et al, 2018 on okra and Abd-Elaziz et al, 2018 on squash).…”

Section: Vegetative Growth Charactersmentioning

confidence: 97%

Response of Growth, Yield and Fruit Quality of Squash Plants to Foliar Application with Potassium Silicate and Magnesium Sulfate under High Temperature Stress

Nada

Metwaly

2020

Journal of Plant Production

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The present study aimed to improve the green color degree of fruits under high temperature stress during this period of cultivation (beginning of July) as well as to enhance the productivity of squash cv. Esqania by using foliar spray with potassium silicate and magnesium sulfate. In the field experiment, squash plants were sprayed with potassium silicate at rates of 0, 250, 500 and 750ppm and magnesium sulfate at rates of 0, 1000 and 2000 ppm. These field experiments were performed at a private farm in Dekerness district, Dakahlia Governorate, Egypt, in summer seasons of 2018 and 2019. The obtained results referred to that increasing potassium silicate rates from 250 up to 750 ppm gradually increased plant growth, leaf pigments, fruit yield and fruit quality parameters. The best treatment in this regard was 750ppm of potassium silicate compared to other rates. In addition, magnesium sulfate at 2000ppm recorded significantly increase in the above mentioned parameters of squash plant compared to the other one under study. The highest values of all the measured parameters were obtained from the potassium silicate rate of 750ppm combined with magnesium sulfate rate at 2000 ppm compared to control during both seasons. In conclusion, the results of this study suggest that using of potassium silicate and magnesium sulfate as foliar application improved squash plants growth and productivity and fruits green color degree may be attributed to the physical role of the silicon as well as magnesium on enhancing chlorophyll formation or both under heat stress condition.

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“…It is rich source of minerals and vitamins; therefore, it is quite popular in both farmers and consumers (Oyelade et al, 2003). Oil of okra is greenish yellow in color that can be used as bio fuel (Anwar et al, 2010;Ayub et al, 2018). A 90% loss (6.5 dSm -1 ) in okra yield has been reported under high salt levels worldwide (Mushtaq et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Effect of Salt Stress on the Germination and Early Seedling Growth in Okra (Abelmoschus esculentus)

Saima¹,

Ghaffar²,

Yasin³

et al. 2022

SJA

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Abelmoschus esculentus L. (okra) is known as bhindi in Urdu and lady finger in English. It is a flowering plant of family Malvaceae. It is grown in sub-tropical Abstract | Salinization has severe affects on agriculture worldwide. For successful survival and better yield, ability of seeds germinations under high salt concentration is very vital. With this object we observed the effects of various levels of NaCl (0, 25, 50 and 75 mM) on six varieties (Green leaf, Rama posa, Arka anamika, Super green, Okra kashish and Nerali) of Okra. The results clearly indicated that seeds of all varieties can tolerate the lower concentration of salt (25 mM) and higher (50 mM) greatly reduced the seeds germination while at highest concentration (75 mM) no germination was recorded. Salt treatments also reduced the dry and fresh weight of roots and shoots in all varieties considerably (P<0.05). Over all Nerali performed better and thus concluded as tolerant variety while Rama posa was proved to be a sensitive variety.

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Effect of gibberellic acid and potassium silicate on physiological growth of Okra (Abelmoschus esculentus L.) under salinity stress

Cited by 20 publications

References 29 publications

Response of tossa jute (Corchorus olitorius L.) salt stressed plants to external application of calcium and potassium

Response of tossa jute (Corchorus olitorius L.) salt stressed plants to external application of calcium and potassium

Response of Growth, Yield and Fruit Quality of Squash Plants to Foliar Application with Potassium Silicate and Magnesium Sulfate under High Temperature Stress

Effect of Salt Stress on the Germination and Early Seedling Growth in Okra (Abelmoschus esculentus)

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