Yield of tomato and maize in response to foliar and root applications of triacontanol

Eriksen, Aud Berglen; Haugstad, May; Nilsen, Stein

doi:10.1007/bf00024217

Cited by 20 publications

(14 citation statements)

References 4 publications

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“…Although triacontanol and its derivatives were ineffective in promoting germination and seedling growth of Leeds durum wheat [4], in the present study, a mixture of long chain aliphatic alcohols, when supplied together with PEG solutions, significantly enhanced seed germination and promoted seedling growth in two wheat cultivars . In previous controlled environment studies TRIA increased dry weight [7], leaf area [21] and total plant nitrogen [9] in other plant species .…”

Section: Discussionmentioning

confidence: 99%

Effects of a long chain aliphatic alcohol mixture on growth and solute accumulation in water stressed wheat seedlings under laboratory conditions

Thind

1991

Plant Growth Regul

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Polyethylene glycol (PEG)-induced water stress adversely affected the germination and seedling growth of Sonalika and WL2265 cultivars of wheat (Triticum aestivum L .) . Application of a mixture of long-chain aliphatic alcohols having the composition C-24 Tetracosanol (10%), C-26 Hexacosanol (16%), C-28 Octacosanol (15%), C-30 Tricontanol (30%), C-32 Dotriacontanol (15%) and C-34 Tetratriacontanol (14%), partially ameliorated these effects and promoted both percent germination and seedling growth . Application also stimulated the activities of the hydrolases a-and fl-amylase and acid invertase, so increasing free sugar accumulation . A role for long chain aliphatic alcohols in the regulation of carbohydrate metabolism is suggested . The alleviation of moisture stress by application of this mixture suggest that long chain aliphatic alcohols may be most effective at low water potentials .

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Section: Discussionmentioning

confidence: 99%

Effects of a long chain aliphatic alcohol mixture on growth and solute accumulation in water stressed wheat seedlings under laboratory conditions

Thind

1991

Plant Growth Regul

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“…Thus, improvement in seed yield due to Mixtalol appears to be the result of increased availability of assimilates and their enhanced diversion towards reproductive structures . Long chain alcohols are reported to improve physiological efficiency of plants by affecting the balance between photosynthesis and photorespiration [6,21] and other metabolic processes [16] . Increased availability of assimilates may also explain the reason for enhan- ced flowering and successful siliquae development subsequent to Mixtalol treatment .…”

Section: Discussionmentioning

confidence: 99%

“…Increased synthesis of starch could also result from increased availability of sugars as a consequence of shift in the balance between photosynthesis and photo-respiration as contended by Eriksen et al . [6], and also due to evocation of enzymes of carbohydrate metabolism as reportedly caused by long chain alcohols [2,9,20] . There were also increases in the levels of total oil and protein contents by 5 and 20 per cent, respectively, over controls due to Mixtalol treatment .…”

Section: Discussionmentioning

confidence: 99%

Effect of ?Mixtalol? on growth, yield and yield components of Indian mustard (Brassica juncea)

et al. 1989

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Mixtalol (a mixture of long chain aliphatic alcohols varying in chain length from C 24 to C 72 ) applied to Brassica juncea plants as foliar spray caused an increase in secondary and tertiary branching with consequent enhancement in seed yield through increased number of inflorescences and siliquae per plant . The percentage of immature siliquae and shattering of siliquae decreased with this treatment . Mixtalol increased total dry matter of plants, partitioning coefficient and harvest index . The contents of starch, protein and oil were also higher in seeds from Mixtalol treated plants .

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“…Similar results have been reported by Asane et al (1998), Barus (1998), andBlamowski et al (1998) on peas, plum, and radish, respectively. In another study, Eriksen et al (1982) noticed a significant increase in total as well as per plant yield of tomato, when TRIA was applied as foliar sprays; but when TRIA was added to the growth medium, only a temporary increase in yield and number of fruits was observed. Further, they found no effect of TRIA on maize yield, whether the TRIA was applied to the leaves or it was added to the growth substrate.…”

Section: Yield and Quality Attributesmentioning

confidence: 92%

“…), maize (Zea mays L.), cucumber (Cucumis sativus L.), and carrot (Daucus carota L.) (Ries et al 1990). Further, in controlled environment studies, Eriksen et al (1982) noticed a TRIA-mediated increase in the dry weight of tomato (Lycopersicon esculentum) seedlings; but, such a dry weight increase was not observed in maize seedlings. TRIA showed no effect on seed germination or on early growth of several species when seeds were treated with it (Hoagland 1980), but significant effect of TRIA was reported in increasing the rate of germination of cotton (Gossypium hirsutum) (Zerong et al 1981) and leguminous crops (Janardhan 1992).…”

Section: Growth Attributesmentioning

confidence: 93%

Triacontanol: a potent plant growth regulator in agriculture

Naeem

Khan

Moinuddin

2012

Journal of Plant Interactions

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Triacontanol (TRIA) is a natural plant growth regulator found in epicuticular waxes. It is used to enhance the crop production in millions of hectares, particularly in Asia. Quite a number of researchers have reported the TRIA-mediated improvement in growth, yield, photosynthesis, protein synthesis, uptake of water and nutrients, nitrogen-fixation, enzymes activities and contents of free amino acids, reducing sugars, soluble protein, and active constituents of essential oil in various crops. Expectedly, TRIA enhances the physiological efficiency of the cells and, thus, exploits the genetic potential of plant to a large extent. In fact, TRIA increased free amino acids, reducing sugars, and soluble protein of rice (Oryza sativa L.) and maize (Zea mays L.) within 5 min. TRIA elicited the appearance of L(')-adenosine within 1 min in the roots of plants, the shoots of which were sprayed with nanomolar concentrations of TRIA. TRIA and octacosanol (OCTA), the primary alcohols, are ubiquitous in the environment. OCTA was reported to inhibit the activity of TRIA in the seedlings of rice (Oryza sativa L.) at equimolar concentrations; and both TRIA and OCTA elicited a second messenger, known as OCTAM and triacontanol second messenger (TRIM), respectively. TRIA rapidly increases the ratio of L(')-to D(Á)-adenosine, probably at the tonoplast. However, it is to be resolved as to how TRIA elicits L(')-adenosine and what is the source of L(')-adenosine in plants. Based on known metabolic processes, de novo synthesis of L(')-adenosine is unlikely, because of the rapidity of the response. TRIA-mediated increase in dry matter production could influence the inter-relationship between primary and secondary metabolism, leading to increased biosynthesis of secondary products. Various studies present strong evidences that application of TRIA applied either to the root medium or to leaves enhanced the growth and yield of vegetables and other crops, including agronomic and horticultural crops as well as medicinal and aromatic crop plants under normal and adverse conditions. However, further investigations are required to elucidate the possible role of TRIA on plant growth regulation, physiological activities and secondary metabolite biosynthesis regarding medicinal and aromatic plants subjected to abiotic stress. The present review covers the pivotal role of TRIA in plant growth and development, its mode of action and its significance in improving the crop productivity and quality of agricultural crops.

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Yield of tomato and maize in response to foliar and root applications of triacontanol

Cited by 20 publications

References 4 publications

Effects of a long chain aliphatic alcohol mixture on growth and solute accumulation in water stressed wheat seedlings under laboratory conditions

Effects of a long chain aliphatic alcohol mixture on growth and solute accumulation in water stressed wheat seedlings under laboratory conditions

Effect of ?Mixtalol? on growth, yield and yield components of Indian mustard (Brassica juncea)

Triacontanol: a potent plant growth regulator in agriculture

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