scholarly journals 300 Effects of Plant Growth Regulators on Eggplant (Solanum melongena L.) Yield

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 443C-443
Author(s):  
J. Pablo Morales-Payan
Keyword(s):  
Plant Growth ◽  
Gibberellic Acid ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Fruit Set ◽  
Block Design ◽  
Control Treatment ◽  
Amine Hydrochloride ◽  
Yield Increase ◽  
Giberellic Acid

Field studies were conducted in the Dominican Republic to determine the effect of several plant growth regulators on the yield of `Jira' eggplant. Treatments consisted of aqueous solutions of folcysteine (25, 50, 75 ppm), giberellic acid 3 (10, 20, 30 ppm), kinetine (25, 50, 75 ppm), naphthalenacetic acid (NAA) (25, 50, 75 ppm), 2,3,4-dichloro-phenoxy-triethyl-amine hydrochloride (DCPTA) (25, 50, 75 ppm), triacontanol (5, 10, 15 ppm), ethanol (5, 10, 15%), and chlormequat (50, 100, 150 ppm) sprayed at early flowering, directed to the crop upper leaves and flowers. A control treatment (no plant growth regulators applied) was also included. A randomized complete-block design with four replications was utilized. Experimental units were two rows of 10 plants at a 1.0 × 0.4-m distancing. Eggplant fruit set and yield were determined after 10 harvests performed at 3-day intervals. Analysis of variance and mean comparison tests were performed on the resulting data. `Jira' eggplant fruit set and yield was significantly improved by folcysteine, giberellic acid 3, and NAA, but not by kinetine, DCPTA, ethanol, triacontanol, or chlormequat. Eggplant yield increased as folcysteine rate increased from 0 to 50 ppm, but no further yield increase was obtained when increasing the rate from 50 to 75 ppm. Similarly, eggplant yield significantly increased as gibberellic acid increased from 0 to 20 ppm, but not when rates increased from 20 to 30 ppm. With NAA, eggplant fruit set and yield significantly increased above that of control plants when 25 ppm was applied, with no significant yield increase at higher rates. Results indicate that the yield of `Jira' eggplants could be enhanced by the treatments with either folcysteine, NAA, or gibberellic acid hereby described.

scholarly journals Effect of Plant Growth Regulators on Fruit-set and Quality of Guava

2016 ◽  
Vol 4 (12) ◽  
pp. 1088 ◽  
Author(s):  
Shreef Mahmood ◽  
Md. Nazmul Hasan ◽  
S.M. Younus Ali ◽  
Rafija Alam Ripa ◽  
Md. Golap Hossain
Keyword(s):  
Ascorbic Acid ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Acid Content ◽  
Fruit Set ◽  
Ascorbic Acid Content ◽  
Fruit Weight ◽  
Control Treatment ◽  
Parthenocarpic Fruit

Two plant growth regulators: β-NOA (50 and 80 ppm) and GA (200 and 250 ppm) were applied to emasculated flowers at anthesis to set parthenocarpic fruit, while in the control treatment fruit set was achieved by natural pollination. The application of β-NOA found ineffective in setting parthenocarpic guava. No significant differences were observed in the length and diameter of fruit between parthenocarpic and naturally pollinated seeded fruit at different days after anthesis. The mean fruit weight, TSS and ascorbic acid content of parthenocarpic fruit were similar to that of seeded fruit. Significant higher amount of total polyphenol was detected in the seeded fruit than the parthenocarpic fruit. Although 200 ppm GA showed comparatively better response to fruit growth, TSS and ascorbic acid content than 250 ppm GA but not in a statistical level.

scholarly journals Effect of foliar application of nitrogen and plant growth regulators on bearing, physico-chemical constituents and shelf-life of mango (Mangifera indica L.)

2021 ◽  
pp. 71-76
Author(s):  
BIPUL KUMAR MANDAL
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Fruit Set ◽  
Foliar Application ◽  
Chemical Constituents ◽  
Mangifera Indica ◽  
Block Design ◽  
Favourable Effect ◽  
Physico Chemical

The experiment was carried out on ten-year-old Amarapali mango (Mangifera indica L) in randomized block design with seventeen treatments with three replications at BAU, Ranchi to study the effect of foliar application of nitrogen and plant growth regulators on bearing and physico-chemical constituent and self life of mango. Among the different treatments, application of 200ppm ethephon had most favourable effect in causing earliness in panicle emergence days (16.0 days), initiation of first flower (12.3 days) and days to initiation of fruit set (10.3 days) over control. Whereas application of 2000ppm triadimefon in combination with 2% urea increased intensity of flowering shoot to the extent of88.5% in fruit plant. The maximum number of fruit set per panicle (44.7), fruit retention (12.1%) and number of harvested fruit per tree (194.4) were observed with combined use of 100ppm SA and 2% urea as compared to control. The highest TSS (25.1 0Brix) and reducing sugar (3.0%) content were registered under 100ppm GA3, while the highest phenol (2.84mg/100g) was recorded from the fruits of the plants sprayed with 200ppm ethephon in combination with 2% urea. However, minimum (11.1%) physiological loss in weight (PLW) was recorded in 100ppm SA along with 2% urea.

scholarly journals EFFECT OF PLANT GROWTH REGULATORS FOR INDUCTION OF PARTHENOCARPIC FRUIT IN KAKROL (Momordica dioica Roxb.)

2007 ◽  
Vol 20 (2) ◽  
pp. 17-22 ◽  
Author(s):  
R. N. Chowdhury ◽  
M. G. Rasul ◽  
A. K. M. Aminul Islam ◽  
M. A. K. Mian ◽  
J. U. Ahmed
Keyword(s):  
Plant Growth ◽  
Gibberellic Acid ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Plant Growth Regulator ◽  
Fruit Set ◽  
Fruit Weight ◽  
Parthenocarpic Fruit ◽  
Three Stages ◽  
Fruit Diameter

An experiment was conducted to find out the suitable plant growth regulator(s) for inducing parthenocarpic fruit in kakrol (Momordica dioicia Roxb). Four plant growth regulators, viz. NAA and 2, 4-D (Auxins), Fulmet (Cytokinine) and GA3 (Gibberellic acid) were sprayed at three stages (a day before anthesis, at anthesis, a day after anthesis). Out of four growth regulators 2, 4-D and fulmet induced parthenocarpic fruit development. Fruit set percent, final fruit weight, fruit length and fruit diameter varied significantly with different treatment combinations. 2, 4-D at 50 ppm when applied at anthesis showed better performance in inducing parthenocarpy.DOI: http://dx.doi.org/10.3329/bjpbg.v20i2.17030

scholarly journals Increasing on Fruit Set and Yield of ‘Monalisa’ and ‘Maxi Gala’ Apple Trees Using Plant Growth Regulators

2020 ◽  
pp. 34-43
Author(s):  
José Luiz Petri ◽  
André Amarildo Sezerino ◽  
Cristhian Leonardo Fenili ◽  
Everlan Fagundes
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Fruit Set ◽  
Control Treatment ◽  
Lower Percentage ◽  
Naphthalene Acetic Acid ◽  
Full Bloom ◽  
Apple Trees ◽  
Fruit Mass

Aims: To evaluate the effect of different plant growth regulators on fruit set and yield of apple trees in mild winter conditions. Study Design:  The experiment was arranged in a randomized block design. Place and Duration of Study: The experiments were carried out in southern Brazil, municipality of Caçador/SC, during the cycle 2016/2017 to 2019/2020 in the 'Monalisa'/M9 and another experiment with cultivars Maxi Gala/M9 and Monalisa/M9, in 2018/2019 and 2019/2020. Methodology: The following products were tested: TDZ (Thidiazuron) Naphthalene acetic acid (NAA), Maxcel®, Ethrel®, Promalin®, Ammonium thiosulfate, and the combination TDZ + Viviful® + Retain®. The following evaluations were carried out: fruit set, fruit yield per plant and per hectare; number of fruits per plant, average fruit mass, the red skin color of fruits, degree of russeting and classification of fruits by size. Results: In 'Monalisa' apple trees, TDZ alone and combined with PCa + AVG increases the fruit set, when applied in full bloom, while TDZ alone and NAA applied in full bloom increases the productivity. TDZ alone reduces return bloom and induces greater alternate bearing while, combined with PCa + AVG does not cause bearing alternation; however, it reduces the average fruit mass. BA + GA reduces the productivity of 'Monalisa' apple trees. The fruit set increased significantly with AVG treatments 52 ppm, 104 ppm, and 156 ppm, while the yield per plant, number of fruits per plant and estimated productivity, all treatments were significantly superior to the control treatment with the exception of AVG 52 ppm, on the Cv. Monalisa. The control treatment and AVG, 104 ppm and 156 ppm presented fruits with larger caliber and only AVG 26 ppm showed a lower percentage of fruits in the class of higher coloration, in comparison to the other treatments. The russeting incidence did not present significant differences in the cultivar Monalisa and Maxi Gala. None of the variables were significantly altered by the application of Retain® in the Cv. Maxi Gala.

Effect of Plant Growth Regulators on Growth and Quality Flower Production of Chrysanthemum (Chrysanthemum Indicum L.)

2022 ◽  
Vol 2 (1) ◽  
pp. 10-18
Author(s):  
Md Ehsanullah ◽  
Ahasan Ullah Khan ◽  
Md Kamruzzam ◽  
Sarah Tasnim
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Block Design ◽  
Research Centre ◽  
Vase Life ◽  
Flower Initiation ◽  
Growth Promoter ◽  
Flower Production ◽  
Minimum Number

A field study was conceded to assess the effect of plant growth regulators on growth and quality flower production of chrysanthemum at Horticulture Research Centre (HRC), Gazipur, Bangladesh. The experiment was laid out in Randomized Complete Block Design (RCBD) with ten (10) treatments and three replications. The treatments of plant growth regulators concentration were T1-50 ppm GA3, T2-100 ppm GA3, T3-150 ppm GA3, T4-400 ppm CCC, T5-600 ppm CCC, T6-800 ppm CCC, T7-250 ppm MH, T8-500 ppm MH, T9-750 ppm MH and, T10-Control. The maximum spreading of plant (27.0 cm) was observed when plants were treated with GA3 @ 150 ppm where the minimum plant spread (16.8 cm) was recorded in plants treated with CCC @ 800 ppm. The higher number of suckers (33) per pot was produced when pots were treated with GA3 @ 150 ppm whereas, application of CCC at three different concentrations produced lower number of suckers.  The highest number of flower (40) was recorded with 150 ppm GA3, where minimum number of flowers (25) per pot in 800 ppm CCC. The plants sprayed with 50 ppm GA3 took 48 days to flower initiation, whereas, it took 70 days with 750 ppm MH. the highest plants recorded (7.40 cm) with 800 ppm CCC, whereas, lowest size (6.50 cm) was obtained with the application of 500 ppm MH. The maximum vase life of flowers was recorded for the treatment 800 ppm CCC (15 days), which was at par with 13 days vase life obtained by spraying 600 ppm CCC. Therefore, it is concluded that the GA3 acted as growth promoter and the CCC acted as growth retardants on yield and quality of chrysanthemum.

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

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.

scholarly journals Plant growth regulators to increase fruit set and yield of ‘Rocha’ pear trees in Southern Brazil

2021 ◽  
Vol 93 (3) ◽  
Author(s):  
BRUNO CARRA ◽  
MATEUS S. PASA ◽  
EVERTON S. ABREU ◽  
MAXIMILIANO DINI ◽  
CARINA P. PASA ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Fruit Set ◽  
Southern Brazil ◽  
Pear Trees

scholarly journals Influence of size and plant growth regulators on corm and cormel production of gladiolus (Gladiolus grandiflorus L.)

2018 ◽  
Vol 29 (2) ◽  
pp. 91-98
Author(s):  
MHA Rashid
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Tap Water ◽  
Block Design ◽  
Cut Flower ◽  
Combined Treatments ◽  
Maximum Weight ◽  
Major Constraint ◽  
Breaking Dormancy

Gladiolus is an excellent cut flower grown throughout the world for its spikes with florets of massive form, brilliant colours, attractive shapes, varying size and long shelf life. However, major constraint for gladiolus cultivation is the corm dormancy. Plant growth regulators (PGRs) play an important role in breaking dormancy and promote more number of quality corm and cormel productions in gladiolus. Therefore, an experiment was conducted to study the influence of corm size and plant growth regulators on corm and cormel production of gladiolus during the period from October 2017 to April 2018 at the Landscaping section of the Department of Horticulture, Bangladesh Agricultural University, Mymensingh. The two-factor experiment included two corm sizes viz., 3-4 cm and 4.1-5 cm, and two PGRs viz., GA3 @ 250, 500 and 750 ppm; and NAA @ 100, 200 and 300 ppm along with tap water as control. The experiment was laid out in a randomised complete block design (RCBD) with three replications. The results revealed that the corm size and PGRs at different concentrations significantly influenced the corm and cormel producing attributes of gladiolus. Maximum number of corms and cormels per plant, maximum weight of single corm, maximum weight of corms and cormels per plant, biggest size of single corm, highest yield of corms and cormels per hectare were recorded from 4.1-5 cm sized corms and GA3 @ 500 ppm, compared to rest of the treatments. It was observed that combined treatments had significant influence on all the parameters studied. The treatment combination of 4.1-5 cm sized corms and GA3 @ 500 ppm was found to be best in terms of corm and cormel production of gladiolus.Progressive Agriculture 29 (2): 91-98, 2018

scholarly journals Effects of Plant Growth Regulators on Fruit Set and Yield of Taiwan Morus macroura

2020 ◽  
Vol 615 ◽  
pp. 012087
Author(s):  
Jiequn Ren ◽  
Minghai Zhang ◽  
Li Chen ◽  
Zhinian Li ◽  
Zhangyun Zheng
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Fruit Set
Sign in / Sign up

Export Citation Format

Share Document