Improving growth of date palm plantlets grown under salt stress with yeast and amino acids applications

Darwesh, R. S. S.

doi:10.1016/j.aoas.2013.07.014

Cited by 29 publications

(24 citation statements)

References 31 publications

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“…As a broad leaf seedling with a bare root, Armeniaca sibirica needed more yeast extract to improve its growth. These results correspond to those by Darwesh on date palm, who expounded that the growth parameters of date palm could be markedly increased by a combination of 50 cm/L yeast and 6 cm/L amino acids [31]. Sampedro et al, through studies on soybean, indicated that a 5% yeast extraction increased shoot initiation, shoot length, and fresh and dry weight [38].…”

Section: Survival and Growthsupporting

confidence: 87%

“…At the same time, the reduction of vegetative growth caused by salt could also be recovered to some extent [29]. A treatment of yeast extract could markedly improve the growth parameters of date palm (Phoenix dactylifera L.) at a few months after the end of the acclimatization stage [30], and enhance the tolerance of date palm plantlets to soil salinity [31]. The effect of yeast extract on forestry has been preliminarily proven.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Yeast Extract on Seedling Growth Promotion and Soil Improvement in Afforestation in a Semiarid Chestnut Soil Area

Qin

Lai

Cui

et al. 2019

Forests

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Yeast extract, which is environmentally friendly, nutritious, and convenient to use, has advantages over common plant growth regulators and soil conditioners. It is worth verifying the effect of the application of yeast extract to afforestation in a semiarid chestnut soil area. This study was conducted through a wild field afforestation experiment in Inner Mongolia, northern China. We designed an orthogonal experiment of 25 treatments with 30 repetitions on Pinus sylvestris(Pinus sylvestris var. mongolica Litv.) sand Armeniaca sibirica（Armeniaca sibirica (L.) Lam）. Three factors with different levels were considered: application to rhizosphere soil with the amounts of 0 g, 10 g, 20 g, 30 g, and 40 g; foliar spraying with concentrations of 0%, 0.5%, 1%, 1.5%, and 2%; and spraying at three moments. The results showed that yeast extract could enhance the seedlings of Pinus sylvestris and Armeniaca sibirica. When applying 40 g of yeast extract, the survival rates and root parameters were significantly boosted. Foliar spraying plays an important role in promoting the growth of seedlings. It was most effective for the two species to be sprayed with a concentration of 2% after leafing of the seedlings. The data also revealed that the application of yeast extract improved the properties of the rhizosphere soil. The porosities and moisture contents were increased, and the bulk densities were reduced. Forty grams (40 g) was the best amount to apply, especially for the soil at 20–40 cm where the seedling roots are mainly located. The chemical properties were also improved, as there was a significant increase in the conductivities, organic matter, nitrogen, and phosphorus as well as a slight reduction in the calcium carbonate content and pH. Therefore, yeast extract has a beneficial effect on both seedling growth promotion and soil improvement. It is considered to be an environmentally efficient method for afforestation and ecological remediation in semiarid chestnut soil areas.

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Section: Survival and Growthsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Effect of Yeast Extract on Seedling Growth Promotion and Soil Improvement in Afforestation in a Semiarid Chestnut Soil Area

Qin

Lai

Cui

et al. 2019

Forests

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“…Growth expressed as root, leaf and total dry weights reduced substantially in the presence of 200 mol/m 3 (Na + K)/Cl (Table 1 ). This reduction under salinity is consistent with the results of Aljuburi et al [ 3 ], Al-Abdoulhadi et al [ 2 ], Darwesh [ 9 ] and Sperling et al [ 30 ] in date palm. High NaCl levels inhibited leaf expansion, largely due to an inhibition of cell division rather than of cell expansion [ 7 ].…”

Section: Discussionsupporting

confidence: 92%

“…Increasing leaf and root internal Na + concentrations with increasing salinity levels, particularly at lower K/Na ratio (Figs. 3 , 4), were reported in date palm [ 2 , 3 , 9 , 30 ]. However, at the highest (Na + K)/Cl concentration, the leaf Na + concentration decreased significantly at both 0.5 and 1 K/Na ratios (Fig.…”

Section: Discussionmentioning

confidence: 99%

In vitro response of date palm (Phoenix dactylifera L.) to K/Na ratio under saline conditions

2015

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Background Salinity is a serious factor limiting the productivity of agricultural plants. One of the potential problems for plants growing under saline conditions is the inability to up take enough K+. The addition of K+ may considerably improve the salt tolerance of plants grown under salinity. It is assumed that increasing the K+ supply at the root zone can ameliorate the reduction in growth imposed by high salinity. The present study aims to determine whether an increase in the K/Na ratio in the external media would enhance the growth of date palm seedlings under in vitro saline conditions.Methods Date palm plants were grown at four concentrations of Na + K/Cl (mol/m3) with three different K/Na ratios. The 12 salt treatments were added to modified MS medium. The modified MS medium was further supplemented with sucrose at 30 g/l.ResultsGrowth decreased substantially with increasing salinity. Growth expressed as shoot and root weight, enhanced significantly with certain K/Na ratios, and higher weight was maintained in the presence of equal K and Na. It is the leaf length, leaf thickness and root thickness that had significant contribution on total dry weight. Na+ contents in leaf and root increased significantly increased with increasing salinity but substantial decreases in Na+ contents were observed in the leaf and root with certain K/Na ratios. This could be attributed to the presence of a high K+ concentration in the media. The internal Na+ concentration was higher in the roots in all treatments, which might indicate a mechanism excluding Na+ from the leaves and its retention in the roots. K/Na ratios up to one significantly increased the leaf and root K+ concentration, and it was most pronounced in leaves. The K+ contents in leaf and root was not proportional to the K+ increase in the media, showing a high affinity for K+ uptake at lower external K+ concentrations, but this mechanism continues to operate even with high external Na+ concentrations.ConclusionIncreasing K/Na ratios in the growing media of date plam significantly reduced the absorption of Na+ less than 200 mM and also balance ions compartmentalization.

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“…Yeast extract was applied in agricultural sector since long time ago and many helpful effects have been reported such as enhancement of growth and yield (Lonhienne et al, 2014 andUysal et al, 2014). Yeast extract has been utilized to animate the vegetative growth and yield of potato (El-Tohamy et al, 2015), enhance antioxidant enzyme activity (Maqsood and Abdul, 2017), improve tolerance to abiotic stress such as salinity and drought (Darwesh, 2013, Hammad & Ali, 2014, Mostafa, 2015and Nassar et al, 2016, improve nutrient uptake (Hammad andAli, 2014, Lonhienne et al, 2014) and control postharvest pathogen (Ferraz et al, 2016). It was suggested that yeast extract participate a beneficial role during stress by promotion of the cytokinins content and photosynthetic pigments, crude protein, total phenols, total free amino acids, total carbohydrates and, antioxidant enzyme activity (Barnett et al, 1990, Hammad & Ali, 2014, Nassar et al, 2016and Maqsood & Abdul, 2017).…”

Section: Alleviation Of Cold Stress On Tomato During Winter Season Bymentioning

confidence: 99%

Alleviation of Cold Stress on Tomato During Winter Season by Application of Yeast Extract and Glycinebetaine

Yousef¹,

Ali²

2019

Egyptian Journal of Horticulture

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T HE MAIN aim of the current study was to investigate the effect of yeast extract (YE) and glycinebetaine (GB) on mitigation of the low temperature stress in tomato plants cv. Basha 1077 F 1 during the winter season. Sixteen treatments, four YE (0, 3, 6 and 9 g/L), four GB concentrations (0, 5, 10 and 15 mM) and their interaction, were applied and arranged in a randomized complete block design with a split plot arrangement with three replicates. The study results indicated that tomato plants positively responded to the foliar applications of YE and GB. It showed that increasing of foliar application of YE concentrations up to 9 g/l increased the vegetative traits (shoot fresh and dry weights, and root fresh and dry weights), yield traits (fruit weight, fruit weight per plant, total yield and marketable yield) and fruit quality traits (total sugars, TSS, vitamin C, carotenoids and lycopene content). Also, foliar application of GB at 5 mM significantly increased the vegetative growth, yield and fruit quality traits compared to the control and other GB treatments. Furthermore, foliar application of YE at 9 g/L along with foliar application of GB at 5 mM resulted in the highest values of the above mentioned traits. Moreover, this combination of treatments significantly increased the total chlorophyll content as well as peroxidase and catalase activity. The results of this study suggest use of YE and GB in commercial production of tomato where low temperature is likely.

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Improving growth of date palm plantlets grown under salt stress with yeast and amino acids applications

Cited by 29 publications

References 31 publications

Effect of Yeast Extract on Seedling Growth Promotion and Soil Improvement in Afforestation in a Semiarid Chestnut Soil Area

Effect of Yeast Extract on Seedling Growth Promotion and Soil Improvement in Afforestation in a Semiarid Chestnut Soil Area

In vitro response of date palm (Phoenix dactylifera L.) to K/Na ratio under saline conditions

Alleviation of Cold Stress on Tomato During Winter Season by Application of Yeast Extract and Glycinebetaine

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