Effect of Seaweed Extracts as Foliar Spray on Sunflower Yield and Oil Content

Osman, Hanan E.; Salem, Olfat M. A.

doi:10.21608/egyjs.2011.114938

Cited by 18 publications

(14 citation statements)

References 22 publications

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“…Other researchers, such as Arthur et al (2003) and Zodape et al (2008) have noted a substantial increase in the grain yield of crops stemming from the combined use of SE and MI. Furthermore, SE foliar spray could provide a promising alternative for improving yields under rainfed soybean production, as SE has been found to substantially enhance the oil content, oil yield, K, N, and raw sunflower Accepted paper seed proteins (Rathore et al 2009;Osman et al 2011).…”

Section: Accepted Papermentioning

confidence: 99%

Synthetic nitrogen coupled with seaweed extract and microbial inoculants improves rice (<em>Oryza sativa</em> L.) production under a dual cropping system

Xie

Iqbal

et al. 2021

Ital J Agronomy

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The over-reliance on synthetic nitrogen (N) in current farming is a major concern because of its adverse effects on soil quality, the environment, and crop production. Organic fertilizers such as seaweed extract (SE) and microbial inoculants (MI) provide alternatives to chemical fertilizers that could decrease the amount of synthetic N needing to be applied and improve crop growth productivity. This study evaluated the combined effect of SE and MI with reduced N rates on the growth, biomass accumulation, yield, and yield components of an N-efficient rice cultivar (Baixiang 139-A) and N-inefficient rice cultivar (Guiyu 9-B). Field experiments were conducted in the early and late growing seasons at different sites in Guangxi province, China, in 2019. A total of five treatments, such as T1: N 180 + SE 0 + MI 0 (kg ha-1) (control); T2: N 180 + SE 3 + MI 3 (kg ha -1); T3: N 144 + SE 3 + MI 3 (kg ha-1); T4: N 126 + SE 3 + MI 3 (kg ha-1); and T5: N 108 + SE 3 + MI 3 (kg ha-1) were used. The leaf area index (LAI), effective panicle number, grain per spike, grain filling rate, and 1000-grain weight were significantly increased in T2 and T3 compared with the control. T2and T3 enhanced the biomass accumulation and grain yield of rice compared with the control. Furthermore, differences in the growth, yield, and yield components among the different cultivars were significant; however, there were no significant differences among the different locations. T3 increased the LAI, grain filling rate, biomass accumulation, and grain yield of rice by 4.5%, 5.9%, 6.6%, and 5.2%, respectively, compared with the control. Improvements in grain yield were mainly attributed to the enhanced growth and yield components. The correlation analysis also confirmed that LAI, productive tillers, grain filling rate, and biomass accumulation were positively correlated with grain yield. In sum, T3 (N144 + SE 3 + MI 3 (kg ha-1)) could achieve higher grain yield despite a reduction in the usage of chemical N. Generally, this study provides a sustainable nutrient management plan that increases crop production while minimizing costs of chemical N fertilizer application.

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Section: Accepted Papermentioning

confidence: 99%

Synthetic nitrogen coupled with seaweed extract and microbial inoculants improves rice (<em>Oryza sativa</em> L.) production under a dual cropping system

Xie

Iqbal

et al. 2021

Ital J Agronomy

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“…Two concentrations, 25 and 50%, provided the significant effects on plant growth and the maximum effect was found in group treated with 25% extract (44.7% longer than in the control group without seaweed extract). In the paper of Osman and Salem [ 35 ], the effect of foliar applications of different concentrations of seaweed extract of Ulva lactuca on sunflower ( Helianthus annuus L.) was presented. Authors applied two concentrations 0.4 and 0.6% w/v, 3 times: first one at the seedling stage (20 days after sowing), the second at the flowering stage (40 days after sowing), and the third one before yield stage (70 days after sowing).…”

Section: Resultsmentioning

confidence: 99%

“…Extract obtained with water with pH 10 applied at a concentration 10% emerged to be the least effective (25.9% lighter). Osman and Salem [ 35 ] showed that very low concentration (0.4 and 0.6%) of U. lactuca extracts promoted dry weight of sunflower. In the group treated with extract at concentration 0.6%, plants were heavier by about 87.5% than in the control.…”

Section: Resultsmentioning

confidence: 99%

“…Latique et al [ 34 ] also reported that higher chlorophyll a content was found for 25% Ulva rigida extract (20.08 mg/g d.w.) when compared with the control plants (4.4 mg/g d.w.). Osman and Salem [ 35 ] observed that foliar application of aqueous extract of Ulva lactuca significantly increased the chlorophyll content in sunflower. In the first stage (45 days from plantation), the highest chl( a ) was detected in sunflower plant treated with 0.4% U. lactuca (7.40 mg/g), while the highest chl( b ) was recorded in plant treated with 0.6% U. lactuca (3.36 mg/g).…”

Section: Resultsmentioning

confidence: 99%

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The Influence of pH of Extracting Water on the Composition of Seaweed Extracts and Their Beneficial Properties onLepidium sativum

Godlewska

Michalak

Tuhy

et al. 2017

BioMed Research International

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Baltic seaweeds were used to obtain aqueous extracts (E) through changing initial pH of deionised water added to algal biomass (EpH3·H2O, EpH7·H2O, and EpH10·H2O) and through changing pH of the mixture of algae and deionised water (EpH3, EpH7, and EpH10). Algal extracts were characterized in terms of the concentration of polyphenols and micro- and macroelements. The highest concentration of polyphenols was determined in extract EpH3 and the lowest in extract EpH10·H2O. It was found that the obtained extracts had similar concentrations of elements (except EpH3). The phytotoxicity of algal extracts (0.5, 2.5, and 10%) was examined in the germination tests on Lepidium sativum. No phytotoxic effects were observed. It was found that they had beneficial effects on the cultivated plants (length and weight). The best biostimulant effect was observed in the groups treated with EpH3 (2.5%), EpH7 (2.5%), and EpH7 (10%). The dry weight of plants was similar in all the groups. Algal extract also improved the multielemental composition of plant. The greatest concentration of total chlorophyll in plants was obtained by using extract EpH10·H2O, 0.5%. These results proved that algal extracts have high potential to be applied in cultivation of plants.

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“…Liquid extracts of Ascophyllum nodosum applied to tomato leaves may increase chlorophyll content compared to tomato plant control. Osman and Salem (2011) also reported that the application of liquid extracts of lettuce (Lactuca sativa) significantly increases chlorophyll levels a and b in sunflowers (Helianthus annuus L.).…”

Section: The Average Of Fresh Weight Dry Weight and Number Of Podsmentioning

confidence: 96%

Effects of Sargassum crassifolium Extract Formula as Biostimulant on Growth and Yield of Glycine max L. Merill

Noli

Azwar

2021

JBT

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The research about the Effect of Sargassum crassifolium Extract Formula as Biostimulant to Increase Growth and Yield of Glycine max L. Merill was conducted from February until June 2020 at the warehouse of Plant Physiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University, Padang. The research aims to evaluate the effectiveness of liquid and powder extract formula of S. crassifolium as biostimulant on the growth and yield of soybean (Glycine max L. Merill). The research was conducted by an experimental method arrange in a Completely Randomized Design (CRD). The experiment consisted of 3 treatments. Each treatment was laid out with nine replications. The treatments tested were control, liquid extract (0.4%), powder extract (1.6 g/L). The results showed that the application of liquid extract gave a higher tendency towards the improvement of the root system, fresh and dry weight, chlorophyll content, and 100 seeds weight of soybean plant. While the powder extracts shown the best result on the total seed weight. Both of extract formula had the potential to be used to increase growth and yield of soybean.

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Effect of Seaweed Extracts as Foliar Spray on Sunflower Yield and Oil Content

Cited by 18 publications

References 22 publications

Synthetic nitrogen coupled with seaweed extract and microbial inoculants improves rice (<em>Oryza sativa</em> L.) production under a dual cropping system

Synthetic nitrogen coupled with seaweed extract and microbial inoculants improves rice (<em>Oryza sativa</em> L.) production under a dual cropping system

The Influence of pH of Extracting Water on the Composition of Seaweed Extracts and Their Beneficial Properties onLepidium sativum

Effects of Sargassum crassifolium Extract Formula as Biostimulant on Growth and Yield of Glycine max L. Merill

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