Effect Of Triacontanol Research Articles

Effect of triacontanol on sprout growth in potatoes (Solanum tuberosum)

AbstractThe effects of a 3‐min dip in various concentrations (0–1–100 mg litre−1) of a triacontanol emulsion on sprout growth from single‐eye pieces of seed potato (Solanum tuberosum L) tubers were assessed after 10 days' growth in acid‐washed sand. Treatment effects were compared with those resulting from immersion for 3 min in a mixture of gibberellic acid (6 mg litre−1) and ethrel (4 mg litre−1).Triacontanol dips were more effective than gibberellic acid and ethrel. Treatments increased the fresh weight of sprouts but had little effect on sprout number per tuber fragment. The optimum concentration of triacontanol was 10 mg litre−1.

Effect of Triacontanol on Rice Seedling Weight and Grain Yield

Effect of Triacontanol on Rice Seedling Weight and Grain Yield

Effect of Triacontanol on Yield and Fruit Composition of Spring-harvested ‘Tangi’ and ‘Dover’ Strawberries

Abstract Triacontanol (1-hydroxytriacontane) applied as a foliar spray or soil drench to ‘Tangi’ and ‘Dover’ strawberries (Fragaria xananassa Duch.) did not affect total yields when applied at 0.1 - 5.0 mg/liter. Fresh fruit weight was increased significantly when triacontanol was applied at 2.00 mg/liter. Soluble solids, pH, solids:acid ratio, titratable acidity, ascorbic acid content, and internal color of fruit were not affected by triacontanol.

The Effects of Triacontanol on the Growth and Development of Tabasco Pepper

Abstract Triacontanol (1-hydroxytriacontane) applied as a soil drench 18 and 43 days after planting increased the plant height of 71-day-old seedlings of Tabasco pepper (Capsicum frutescens L.) in a greenhouse experiment. Triacontanol applied as a soil drench at transplanting significantly increased early maturity, total yield, and number of fruits in the field.

Effect of triacontanol on production and quality of flowers of Chrysanthemum morifolium Ramat

Two cultivars of Chrysanthemum morifolium, ‘Golden Horim’ and ‘Golden Miquel’, were cultivated in nutrient solution containing the growth regulator triacontanol. The vegetative growth, production of inflorescences and quality of flowers were measured. The dry weight of the whole plant and the shoot from both cultivars increased. The number of inflorescences per plant and the number of flowers per inflorescence also increased in response to triacontanol treatment, which in turn enhanced the quality of flowers in accordance with the standards defined by sales-quality groups. The number of flowers of superior quality was more than doubled.

Effect of triacontanol on the absorption and transport of Rb+ and PO4− in plants

The influence of a new plant growth substance TAc (1-Triacontanol) was tested on the growth, and 86Rb+ and 32PO4− uptake and translocation in drought resistant (M-35-1) and susceptible (M-47-3) sorghum varieties. The absorption and transport of Rb+ and PO4− by Sorghum (Sorghum vulgarePers.) seedlings, pretreated with different concentrations (10, 50 or 100 μg/l) of TAc were found to be enhanced. Dry wt. of root and shoot of M-35-1 was increased by 10 μg/l. On the other hand, all concentrations of TAc reduced the dry wt. of M-47-3. Absorption and transport of Rb+ and PO4− in M-35-1 and M-47-3 were increased by the presence of TAc during a period of 6 hours. However, there was a significant reduction in Rb+ uptake and translocation when the seeds were treated with TAc for 24 hours. It is concluded that TAc has differential effect on ion uptake in the drought resistant and susceptible sorghum varieties.

Effects of Triacontanol on Seed Germination and Early Growth

Seeds of 15 weed, crop, and horticultural species were treated with 10-5 M n-triacontanol (in 0.3% dimethyl sulfoxide) to determine its effects on germination, morphology, and early growth. Germination was not significantly affected in any of the 15 species tested. Axis length was inhibited in three species: lettuce (Lactuca saliva L.), sicklepod (Cassia obtusifolia L.), and cotton (Gossypium hirsutum L.). There was no stimulation or inhibition of growth in corn (Zea mays L.), sesbania (Sesbania exaliata [Raf.] Cory), sorghum (Sorghum bicolor [L.] Moench), spurred anoda (Anoda cristata [L.] Schlecht), purslane (Portulaca oleracea L.), radish (Raphanus sativus L.), barnyard grass (Echinochloa crus-galli [L.] Beauv.), soybean (Glycine max [L.] Merr.), sida (Sida spinosa L.), velvetleaf (Abutilon theophrasti Medic.), pigweed (Amaranthus retroflexus L.), or muskmelon (Cucumis melo L.). Triacontanol, which has previously been shown to stimulate growth at ∼10-8 M, can also inhibit growth selectively at higher c...

Effects of Triacontanol on Sweet Potatoes1

Abstract Triacontanol, applied at 100 ppb to sweet potato (Ipomoea batatas (L.) Lam increased percent dry weight and percentage nitrogen (dry weight basis) of leaves soon after treatment but had no measurable effect on root yields, root protein or percentage dry matter of the roots.

The effects of triacontanol on seedling growth and polyphenol oxidase activity in dark and light growth lettuce

Abstract The present study was designed to study the effects of various concentrations (0.00; 0.01, 0.10 and 1.00‐mg/ml) of triacontanol on root, stem and leaf growth and polyphenol oxidase activity in each respective tissue; in Grand Rapids and Great Lakes varieties of eleven‐day‐old dark and light grown lettuce seedlings. Root, stem and leaf growth was less than in non‐triacontanol‐treated Grand Rapids seedlings in both TC‐treated dark and light exposed seedlings. With respect to Great Lakes seedlings, all dark‐grown roots exhibited greater growth than the corresponding untreated control. Light‐grown Great Lakes roots treated with 0.01‐mg/ml and 1.0‐mg/ml or triacontanol respectively, grew more than control or 0.1‐mg/ml triacontanol‐treated seedlings. Both dark and light‐grown triacontanol‐treated stem and leaf tissues of Great Lakes seedlings all produced less growth than the untreated controls. The Grand Rapids variety had less polyphenol oxidase activity in both dark and light‐grown root and stem tis...