Effect of Plant Growth Regulators on growth and Yield of Brinjal at Khajura, Banke

A field study was conduced in split-plot design with three replications to assess the effect of plant growth regulators (PGRs) on morphological characters and yield of brinjal cvs. Pusa Purple Long (PPL) and Pusa Purple Cluster (PPC) as main plot factor at Khajura, Banke district during summer-rainy season of 2004. The sub-plot treatments composed of fresh water (control), 40 ppm NAA, 10 ppm GA3, 2 ppm 2,4-D, 300 ppm ethephon, 30 ppm BAP and 5 ppm triacontanol. The first spray was at flowering stage and the others at 20 days interval. The PGRs had no significant effect on plant height and stem diameter at the end of crop period and days to 100% plant flowering whereas the cultivars differed significantly. The PPL was earlier to 100% plant flowering, which took 33 days after transplanting. The treatments had no significant influence in fruit number per plant and fruit yield. The interaction effect showed that the. PPL did not produced statistically different fruit number per plant with respect to growth regulators, while it had significantly higher fruit yield (17.76 t/ha) at 40 ppm NAA than that at 10 ppm GA3 and 30 ppm BAP. The PPC produced significantly higher fruit number per plant and higher fruit yield (t/ha) at 30 ppm BAP than all other treatments except 5ppm triacontanol. Key words: Growth regulators, cultivar, season, marketable, unmarketable, yield J. Inst. Agric. Anim. Sci. 27:153-156 (2006)

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Effect of Plant Growth Regulators on Growth, Yield and Quality of Chilli (Capsicum annuum L.) at Rampur, Chitwan

Journal of the Institute of Agriculture and Animal Science ◽

10.3126/jiaas.v27i0.697 ◽

2006 ◽

Vol 27 ◽

pp. 65-68 ◽

Cited By ~ 8

Author(s):

BR Chaudhary ◽

MD Sharma ◽

SM Shakya ◽

DM Gautam

Keyword(s):

Plant Growth ◽

Leaf Area Index ◽

Leaf Area ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Seed Weight ◽

Fruit Yield ◽

Growth And Yield ◽

Area Index ◽

Net Profit

The present investigation was carried out in the plain areas of Chitwan to determine the promising plant growth regulators (PGR) promoting growth and yield of chilli cultivars Jwala and Suryamukhi during winter-summer season of 2003/2004. Suryamukhi ranked superior to Jwala for most of the yield attributing characters, whereas Jwala was better in vegetative characters than Suryamukhi. Among PGRs, 2,4-D at 2 ppm was better for fruit set, number of fruits per plant, fruit length, number of seeds per fruit, seed weight per fruits, 1000 seed weight and fruit yield where as NAA at 40 ppm gave the highest leaf area index (LAI). PGRs were ineffective in promoting flowering and fruiting during winter season. GA3 at 10 ppm exhibited maximum amount of ascorbic acid content. The treatments, 2 ppm 2,4-D, 5 ppm triacontanol, 40 ppm NAA and 10 ppm GA3 produced 28.75%, 25.70%, 13.61% and 2.30% higher fruit yield over control, respectively. The highest net profit and B:C ratio were recorded in case of 2 ppm 2,4-D. The use of GA3 as foliar spray was not economical. Key words: 2,4-D, NAA, triacontanol, GA3, leaf area index, net profit, B:C ratio J. Inst. Agric. Anim. Sci. 27:65-68 (2006)

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Plant growth regulators promote growth and yield of summer tomato (lycopersicone sculentum Mill.)

Progressive Agriculture ◽

10.3329/pa.v26i1.24512 ◽

2015 ◽

Vol 26 (1) ◽

pp. 32-37 ◽

Cited By ~ 3

Author(s):

M Rahman ◽

MA Nahar ◽

MS Sahariar ◽

MR Karim

Keyword(s):

Plant Growth ◽

Plant Height ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Growth Regulator ◽

Plant Growth Regulator ◽

Fruit Weight ◽

Fruit Yield ◽

Growth And Yield ◽

The Impact

An experiment was conducted at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh to test the impact of plant growth regulators on growth and yield of summer tomato. The experiment consisted of two tomato varieties viz. BARI Hybrid Tomato-4 and BARI Hybrid Tomato-8 and four types of plant growth regulator (PGR)viz.,(i) control (without PGR), (ii) 4-CPA (4-chlorophenoxy acetic acid), GA3 (gibberellic acid) and 4-CPA +GA3. The two-factor experiment was laid out in randomized complete block design with three replications. The results of the experiment revealed that significant variations were observed for most of the characters studied. At 75 DAT, the tallest plant (79.35 cm), number of flowers and fruits (38.11 and 19.04, respectively) plant-1, individual weight (58.44 g) and fruit yield (22.75 t ha-1) were found in BARI Hybrid Tomato-8.At 75 DAT the maximum plant height (87.90 cm), number of flowers and fruits (49.04 and 21.9, respectively) plant-1, individual fruit weight (61.16 g), and fruit yield (27.28 tha-1) were found when 4-CPA + GA3 applied together, whereas the minimum for these characters were recorded from control plants. In case of combined effect of variety and plant growth regulator, the maximum plant height (87.90 cm), number of flowers and fruits (49.04 and 21.91, respectively) plant-1, individual fruit weight (61.16 g) and fruit yield (27.28 t ha-1) were observed in BARI Hybrid Tomato-8 when treated with 4-CPA + GA3together, and the minimum for all these parameters were found in control plants. The results of the present study suggest thatboth 4-CAP and GA3together can be practiced for increasing summer tomato production for both the varieties.Progressive Agriculture 26:32-37, 2015

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CHANGES IN THE CHARACTERISTICS OF ‘PRATA’ BANANA TREATED WITH CYTOKININ AND GIBBERELLIN

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452016379 ◽

2016 ◽

Vol 38 (3) ◽

Author(s):

JULIANA DOMINGUES LIMA ◽

JÉSSICA SANTA ROSA ◽

DANILO EDUARDO ROZANE ◽

EDUARDO NARDINI GOMES ◽

SILVIA HELENA MODENESE GORLA DA SILVA

Keyword(s):

Plant Growth ◽

Gibberellic Acid ◽

Factorial Design ◽

Plant Growth Regulators ◽

Growth Regulators ◽

Physicochemical Characteristics ◽

Fruit Yield ◽

Musa Spp ◽

Yield And Quality ◽

Split Plot

ABSTRACT Plant growth regulators can influence fruit yield and quality. This study aimed to evaluate the effect of cytokinin and gibberelin on the agronomic and physicochemical characteristics of banana fruits cv. ‘Prata’ (Musa spp. AAB), according to the formation period and position in the bunch. The experiment was conducted in a completely randomized 2 x 5 factorial design, two periods of bunch development (summer and winter), five treatments and ten replicates. To study the effect of position in the bunch, split plot was adopted, considering in the plot, 2 x 5 factorial and in subplots, hand 1, hand 4 and last hand. Treatments consisted of 2 pulverizations with water, 150 mg L-1 cytokinin, 200 mg L-1 of gibberellic acid, 100 mg L-1 of cytokinin plus 200 mg L-1 of gibberellic acid and 200 mg L-1 of cytokinin plus 200 mg L-1 of gibberellic acid, applied from the fourth to the last hand of the bunch. Cytokinin and gibberellin, alone or associated, regardless of formation period and position, did not affect the size and physicochemical characteristics of fruits, only delayed the bunch harvest.

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