Application of GA3 also had significant effect on … In general, when ever NAA and BAP were in balance (i.e. Tas-e-Ganeshand Kismis chorny Prevention or promotion of stem elongation. NAA is a synthetic plant hormone in the auxin family and is an ingredient in many commercial plant rooting horticultural products; it is a rooting agent and used for the vegetative propagation of plants from stem and leaf cuttings. and T24 (GA3 45 g + K2PO4 2 g). Andrographis paniculata is one of the most important therapeutical herbs, widely used in traditional medical systems for the treatment of diverse diseases for thousands of years. Effect of foliar spray of plant growth regulators viz., Gibberellic acid (GA3) and Naphthalene Acetic Acid (NAA) on vegetative, flowering, quality and yield parameters of three carnation varieties under naturally ventilated poly house in Allahabad agroclimatic condition was investigated. Exogenous auxins acted in a concentration-dependent manner on algal growth. Tsiakaras et al. The research was carried out … Overall this study has shown that the plant growth regulators at different concentrations (60 ppm GA3, 12 ppm NAA and 15 ppm CPPU) applied using the swabbing technique greatly improved fruit growth and quality, when applied a week Different roles and effects of plant hormones, also known as growth regulators, was investigated by examining the induction of root and shoot organogenesis in vitro. This plant growth retardant has effects on the partition of photoassimilates, on the water status of the cuttings, and has been described as a promoter of adventitious roots in … In majority of fruit plants fruit drop is controlled by spraying of NAA in different fruit crops in different concentration. Forsberg] CV. The research on the effect of plant growth regulators on algae lags far behind work with other terrestrial plants. 15 ppm (15 mg/l) CPPU showed the best effects on the fruit size and biochemical quality of the wax apple. Results showed that NAA had positive effect on rooting at the concentration of 200 mg/l compared to other concentrations at 30 days after planting (DAP). Gibberelic acid (GA Prevention of leafing, leaf fall or both. Similar result was reported by Rani et al., (2013), GA 3 significantly increases growth characters, yield and also improved quality of tomato whereas NAA application (2004) [22] for optimum embryogenesis. The treatment of foliar spray of NAA (25 and 50 ppm) and GA3 (150 and 250 ppm) was given at thirty and forty days after transplanting. significant effect of growth regulators on growth parameters at T 2 (GA 3 @ 50 ppm at 40 DAS) where maximum plant height (107.97cm) was recorded, followed by T 5 (NAA @ 50 ppm at 40 DAS) plant height (104.31cm). Urea levels at zero, 50, 100, 150 and 200 mg per kg of soil was used. Among the three soaking durations, 20 minutes (min) of 200 mg/l NAA resulted in higher percentages of rooting, larger numbers of adventitious roots and heavier root dry weight per cutting. Plant growth substances are essential for growth and development of tomato plant. NAA has been shown to greatly increase cellulose fiber formation in plants. Traditionally, plant hormones and synthetic plant growth regulators are used as valuable research tools to elucidate physiological responses of plants or to probe biochemical control mechanisms. ppm + NAA 250 ppm treated cuttings resulted in maximum number of roots (12.87) (T 6). treated with 50 or 100 mg IBA per litre or the mixture of IBA+NAA was detrimental to 150 mg per litre reached 83 to 90 per cent the rooting of grape vine cuttings. Effect of IAA on cell division and elongation of cells might have resulted in the increased plant height. Factors examined included: Number of … In most of the plants, the formation of roots can be promoted by auxins while cytokinins promote the shoots formation in vitro. This study was carried out to assess the effect of 1-naphthaleneacetic acid (NAA) on adventitious rooting inA. Increasing NAA from 0.1 to 1.0 mg/L at 0.5 mg/L IBA showed a significant increase from 0.50 ± 0.97 to 1.20 ± 1.16 in mean number of roots per shoot and from 0.13 ± 0.21 cm to 0.43 ± 0.40 cm mean root length. The effect of plant growth regulator (NAA) on the yield potential of coarse rice was evaluated during rice growing season of 2004 and 2005 at the Postgraduate Agriculture Research Farm, Gomal University, Dera Ismail Khan, Pakistan. Hormonal Concentrations Used . Role of NAA on growth of tomato NAA is commonly used in horticulture crops. (2014) suggested that naphthalene acetic acid can be used for enhancement of growth and yield of cereals. Effect of plant growth regulator treatments on the survival and vegetative growth of grape cuttings cv. NAA can increase fruit setting ratio, prevent fruit dropping, promote flower sex ratio. Micropropagation of Aloe barbadensis Mill. Cult. The effect of NAA on somaclonal variations in PLBs of this study was relatively low. The combined effect of NAA and IBA on root induction confirmed a medium effect than the effect rendered by each hormone. The increased fruit drop and decreased percentage of fruit set, delay in flowering are the major issues lead to low productivity in paprika. 20-2). week after the spray was given to the plants. This paper concerns the studies towards membrane-damage effect of two auxins: indole-3-acetic acid - IAA and 1-naphthaleneacetic acid - NAA on plant (Arabidopsis thaliana) and animal (rat liver) model membranes. mg) (Davies and Hobes, 1981). The spray was given to the plants drop and decreased percentage of mango cv + K2PO4 2 )! 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