The effect of seaweed concentrate and fertilizer on growth and the endogenous cytokinin content of Phaseolus vulgaris

Featonby-Smith, B.C.; Staden, J. Van

doi:10.1016/s0022-4618(16)30006-7

Cited by 48 publications

(22 citation statements)

References 27 publications

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“…Among the effects reported is improved rooting of cuttings of several ornamentals and a significant increase in root initiation and growth (Featonby-Smith and Van Staden 1984b;Beckett and Van Staden 1989;Crouch and Van Staden 1991). Some of these effects have been attributed to the presence of growth substances such as cytokinins, which are known to occur at relatively high levels in various seaweeds and commercial seaweed preparations (Pederson 1973;Blunden and Wildgoose 1977;Featonby-Smith and Van Staden 1984a;Tay et al 1985Tay et al , 1987.…”

Section: Introductionmentioning

confidence: 99%

The effect of seaweed concentrate on the growth of Pinus pinea seedlings

Atzmon

Staden

1994

New Forest

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Application. The use of seaweed concentrate (SWC) to accelerate root growth of Pinus pinea seedlings is described. This renewable natural product might be used to improve the root and shoot growth of forest seedlings. Foliar spraying or root drenching seedlings with SWC dilutions before transplanting in the field may reduce transplant shock.Abstract. Seedlings of Pinus pinea L. growing in plastic containers were treated with seaweed concentrate (SWC). Different concentrations of SWC were applied, 0 to 3 times, to the roots or shoots of the seedlings. Shoot application increased plant weight mainly by increasing shoot growth. This was manifested as increased shoot length and weight and a decrease in the root/shoot ratio. Root drenches did not change the total plant weight but it accelerated root growth and increased lateral root dry weight. Root growth capacity (RGC) tests for both shoot and root applications indicated an increase in root length and some increases in root number when applied as a root drench. This study indicates that root application of SWC improved seedling quality and increased the ability of seedlings to survive transplanting into pots.

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Section: Introductionmentioning

confidence: 99%

The effect of seaweed concentrate on the growth of Pinus pinea seedlings

Atzmon

Staden

1994

New Forest

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“…Although artificial cytokinins may be more cost-ly to apply to wheat crops than fertilizers, inexpensive seaweed concentrates and extracts contain relatively high concentrations of natural cytokinins (Featonby-Smith and van Staden, 1983;1984a, b;Finnie and van Staden 1985;Tay et al, 1985;. Furthermore, studies on barley and wheat have shown that early applications of seaweed concentrates can increase spikelet number and yield (Featonby-Smith and van Staden, 1987;Nelson and van Staden, 1986).…”

Section: Introductionmentioning

confidence: 99%

The effect of seaweed concentrate on the growth and yield of potassium stressed wheat

Beckett

Staden

1989

Plant Soil

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The effects of the seaweed concentrate 'Kelpak' on the growth and yield of wheat grown under conditions of varying K supply were investigated. Kelpak had no significant effect on the yield of wheat receiving an adequate K supply, but significantly increased the yield of K stressed plants. The increase in yield was caused by an increase in both grain number and individual grain weight. Although the beneficial effects of seaweed concentrates have often been attributed to their cytokinin content, several lines of evidence suggested that this group of plant growth regulators may not be solely responsible for the observed effects of Kelpak on wheat. Irrespective of the physiological mechanism of action, Kelpak would appear to have considerable potential for increasing yield in K stressed wheat and may therefore reduce the requirement of wheat for K fertilization.

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“…The stimulation effect of biostimulants on yield could be attributed to the presence of plant growth substances, in special, cytokinins in seaweed (Kurepin, 2014), that induced overall plant growth, maintenance of green leaves, and number of branches per plant, increasing photosynthetic pigments, followed by increasing sink capacity fulfilled supply of photoassimilates from green leaves and/or re-translocation of stem reserve (Saravanan, 2003). The favorable influences of biostimulants on the chemical characteristics of fruit may be ascribed to its simulative effect on photosynthesis process and its concentration of some promoter hormones such as cytokinins which are closely involved in cell division, protein, carbohydrates, and chlorophyll formation (Featonby-Smith and Van, 1984). Enhancement of early yield by mulching probably was due to enhancing the top growth (Wien and Minotti, 1987); reduced nutrient loss by leaching and retention of soil heat and moisture (Bhella, 1988); and because of increase of the sink capacity of tomato fruits (Abdul-Baki, 1997) and increase early flower number (Wien and Minotti, 1988 a); a direct effect of an early vegetative growth of the plants due to reflected photosynthetically active light and FR:R ratio reflection and their role in phytochrome mechanism, heat accumulation and the enhancement of nutrient uptake (Adams, 1997); hastening maturity of fruits on mulch treatments (Gad El-Hak, 1989).…”

Section: Yield and Its Components And Fruit Quality Charactersmentioning

confidence: 99%

Effect of Irrigation, some Plant Nutrients with Mulching on Growth and Productivity of Cucumber

Shehata

El-Hady

El-Magawry

2019

Journal of Plant Production

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This work was carried out during the two consecutive summers of 2016 and 2017 in the Experimental Station Farm, Faculty of Agriculture and Natural Resources, Aswan University, Egypt on a soil sandy textured soil. This work aimed to study the effect of number of drip irrigation periods/week, foliar spray with some plant nutrients "micronutrients and Biostimulant " and with or without mulching on growth, yield and quality of cucumber. Certain physiological and chemical characters plant height, number of leaves per plant, number of branches per plant, plant dry weight (g), chlorophyll, reducing sugars, acidity, vitamin C, soluble solids (TSS), No. of day to harvest, early yield (ton/fed.), average fruit weight (g), total yield (ton/fed.), and chemical analyses of plants (N, P and K %). The experimental design was a split-split plots system arranged in a randomized complete block design with three replications. Number of drip irrigation periods/week (2 and 3), foliar spray with some plant nutrients i.e. (control "distilled water", Zinc chelated (Zn 14 % EDTA) at 100 mg/l and Iron chelated (Fe 13.0 % EDTA) at 500 mg/l and seaweed extract 1000 mg/l) and polyethylene mulching treatments i.e. without mulching, clear polyethylene mulch + sugar cane straw mulch and black polyethylene mulch + sugar cane straw mulch. The obtained results revealed that 2 drip irrigation periods/week + black polyethylene mulch + sugar cane straw mulch + 1000 mg/l seaweed extract gave the significant effects in most studied characters under study during both seasons.

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The effect of seaweed concentrate and fertilizer on growth and the endogenous cytokinin content of Phaseolus vulgaris

Cited by 48 publications

References 27 publications

The effect of seaweed concentrate on the growth of Pinus pinea seedlings

The effect of seaweed concentrate on the growth of Pinus pinea seedlings

The effect of seaweed concentrate on the growth and yield of potassium stressed wheat

Effect of Irrigation, some Plant Nutrients with Mulching on Growth and Productivity of Cucumber

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