Effect of Humic acid on growth and yield of three cultivars of summer squash (Cucurbita pepo L.)

Esho, Kamal Benyamin

doi:10.5455/egyjebb.20170521065315

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…The effect of saline stress, especially of NaCl, has reduced the growth and development of most plants, which is usually mentioned in many studies 19,20 . On the other hand, treatment with HA has led to positive effects on both the vegetative and reproductive growth of squash and others 21,22,23 . These positive effects of treatment with HA, regardless of how it was added to the plant, had an important role in alleviating the severe effect of saline stress 13 .…”

Section: Salinitymentioning

confidence: 99%

Physiological Responses of Squash (Cucurbita pepo L.) to Humic Acid Treatment under NaCl Stress Conditions

Al Gehani

2020

sjuob

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Squash plants (Cucurbita pepo L. cv. Alexandria F1) were subjected to different levels of humus as source of humic acid (HA) and NaCl as source of salinity with irrigation to investigate the effect of HA on growth and physiological processes under salinity condition. Three levels of HA: 0, 200 and 400 ppm were used with four levels of salinity: 500 (fresh water), 1000, 2000 and 3000 ppm were prepared by adding 0, 500, 1500 and 2500 ppm of NaCl in fresh water. Fresh weight (FWL), dry weight (DWL), specific leaf weight (SLW), midday water content (WC) and relative water content (RWC) of leaves were measured for each treatment at the end of experimentation. Leaf contents of nitrogen (N), phosphorus (P), potassium (K+), sodium (Na+) and chloride (Cl−), as well as percentage of protein and content of chlorophyll a, b and total in leaves were determined. The treatment with HA at a concentration of 400 ppm led to maintaining the FWL and DWL, also prevented the decrease in WC of the leaves under the condition of NaCl stress. While there was no apparent effect of treatments on the values of the SLW and RWC. HA reduced the negative effect of salinity on the leaf content of N and P, whereas increasing the content of K+ and K:Na ratio. HA has maintained the concentration of Na+ ions, and there was a noticeable increase in the leaf content of Cl- ions with an increase in the applied NaCl concentration, without any effect of HA treatment reported in this regard. HA led to enhance the severity of NaCl reduced effect on leaf content of chlorophyll a, b and the total and percentage of protein. HA has increased the ability of squash to maintain the WC percentage and improving the nutrients uptake as well as stopped the increase in Na+ ions in the plant tissue. On the other hand, HA treatment was unsuccessful in preventing the increase in Cl-, consequence a decrease in the content of chlorophyll and protein in leaf tissue has been registered, thus there will be a general reduction in overall growth and development of the plant.

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Section: Salinitymentioning

confidence: 99%

Physiological Responses of Squash (Cucurbita pepo L.) to Humic Acid Treatment under NaCl Stress Conditions

Al Gehani

2020

sjuob

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Response of Vegetative Growth, Leaf Pigments, Yield and Fruit Quality of Some Summer Squash Cultivars Grown in Sandy Soil to Foliar Spray With Some Antioxidants

Abd-Alrahman

Gad

Ahmed

et al. 2020

Zagazig Journal of Agricultural Research

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Effect of Irrigation with Magnetized Water and Foliar Spraying with Humic Acid on Seedling Growth of Squash Plant (Cucurbita pepo L.) Under Salinity Stress

Imryed,

Ahmaida,

Bader

2024

JOPAS

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The experiment was conducted to investigate the effect of magnetic water (MW 14500 Gauss) and humic acid (HA 30 ppm) on the germination and growth of squash plants (Cucurbita pepo L.) exposed to salinity stress. Salinity stress was imposed by irrigation with saline water at concentrations of 1700, 2700, and 3700 ppm in addition to a control (tap water). The results showed that with increasing salinity stress, all vegetative growth parameters, seed germination ratio, and photosynthetic pigments decreased. On the other hand, foliar application of HA and irrigation with MW had a favorable impact on increasing vegetative traits and photosynthetic pigments. These results give a positive indication of the use of HA and MW to ameliorate the negative effects of salinity on squash plants.

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Effect of Humic acid on growth and yield of three cultivars of summer squash (Cucurbita pepo L.)

Cited by 3 publications

References 5 publications

Physiological Responses of Squash (Cucurbita pepo L.) to Humic Acid Treatment under NaCl Stress Conditions

Physiological Responses of Squash (Cucurbita pepo L.) to Humic Acid Treatment under NaCl Stress Conditions

Response of Vegetative Growth, Leaf Pigments, Yield and Fruit Quality of Some Summer Squash Cultivars Grown in Sandy Soil to Foliar Spray With Some Antioxidants

Effect of Irrigation with Magnetized Water and Foliar Spraying with Humic Acid on Seedling Growth of Squash Plant (Cucurbita pepo L.) Under Salinity Stress

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