Growth and yield of anthurium in response to gibberellic acid

Gibberellic acid (GA3) induces flowering of plants of various genera of the Araceae family. Therefore, it was evaluated the effect of GA3 on the growth and yield of Anthurium andraeanum cv. 'Apalai'. For this purpose, micropropagated seedlings were planted in nursery beds under 70% shade. The experimental design was completely randomized in subdivided plots with eight replications. The growth regulation effect was assessed in each plot and the time to flowering after the start of the treatments was assessed in each subplot. The GA3 concentrations were 0, 150, 300, 450 and 600mg L-1, applied every 60 days by spraying on the leaves. The applications and evaluations started after the production of marketable floral stems. Every month the number of leaves was counted and their dimensions were measured, while every week the presence of inflorescences and the point of their commercial harvest were assessed and the respective dimensions were measured. Application of GA3 at 150, 300 and 450 mg L-1 promoted an increase in the leaf area. However, there was no increase in the number of inflorescences produced or their quality, making it impossible to recommend the use of this growth regulator for commercial production of this flower.

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Effect of Planting Date and Gibberellic Acid on the Growth and Yield of Garlic

The Agriculturists ◽

10.3329/agric.v6i1.5224 ◽

2010 ◽

pp. 132-140 ◽

Cited By ~ 1

Author(s):

MA Islam ◽

MH Reza ◽

SMAHM Kamal ◽

MA Wazed ◽

KM Islam

Keyword(s):

Gibberellic Acid ◽

Plant Height ◽

Dry Matter ◽

Dry Weight ◽

Planting Date ◽

Growth And Yield ◽

Planting Time ◽

Local Cultivar ◽

Number Of Leaves ◽

Bulb Yield

An experiment was conducted with a local cultivar of garlic to study the effects of planting date and gibberellic acid on the growth and yield of garlic at the field laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during November 2001 to April 2002. Early planting influenced the plant height, leaf number, bulb diameter and total dry matter. With the delay in planting time starting from November 7, the yield was chronologically reduced in later plantings. Significantly the highest bulb yield (2.67 t/ha) was recorded when planting was done on November 7 and lowest yield (0.92 t/ha) was obtained from December 22 planted crop. Bulb yield was higher in control plants than those of GA3 treated plants. The interaction effects of planting date and different concentrations of GA3 differed significantly in respect of plant height, number of leaves, bulb diameter and dry weight of roots, leaves and bulbs and yield of garlic.

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Effect of Phosphorus and Gibberellic Acid on Growth and Yield of Tuberose (Polianthes tuberosa)

Asian Plant Research Journal ◽

10.9734/aprj/2020/v4i330087 ◽

2020 ◽

pp. 17-30

Author(s):

Lathuenu Marma ◽

Md. Hasanuzzaman Akand ◽

Md. Nazrul Islam

Keyword(s):

Gibberellic Acid ◽

Block Design ◽

Growth And Yield ◽

Control Treatment ◽

Net Return ◽

Commercial Cultivation ◽

Two Factors ◽

Number Of Leaves ◽

P Application ◽

Bulb Yield

The present study was carried out in the Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during October 2017 to March 2018 to study the Effect of phosphorus (P) and gibberellic acid (GA3) on growth and yield of tuberose (Polianthes tuberosa). Four phosphorus levels viz P0 = 0 kg P2O5 ha-1, P1 = 65 kg P2O5 ha-1, P2 = 85 kg P2O5 ha-1 and P3 = 110 kg P2O5 ha-1 and three GA3 levels viz. G0 = 0 ppm GA3, G1 = 115 ppm GA3 and G2 =145 ppm GA3. The experiment was laid out in the two factors Randomized Complete Block Design (RCBD) with three replications. Regarding P application, P3 gave the highest plant height (61.02 cm) and number of leaves plant-1 (7. 29.35) compared to control treatment but the highest yield parameters no. of spike ha-1 (368.60 thousand), bulb yield (25.88 t ha-1) and bulblet yield (14.21 t ha-1) were found from the treatment P2 whereas control treatment P0 showed lowest results. In case of GA3 application, G2 showed highest growth and yield parameter and the highest no. of spike ha-1 (362.30 thousand), bulb yield (25.38 t ha-1) and bulblet yield (14.00 t ha-1) were obtained from G2 whereas the lowest results were found from the control treatment G0. Treatment combine of P and GA3, the highest no. of spike ha-1 (405.60 thousand), bulb yield (31.45 t ha-1), and bulblet yield (16.01 t ha-1) were found from P2G2 combination whereas the lowest no. of spike ha-1 (189.60 thousand), bulb yield (14.57 t ha-1) and bulblet yield (9.05 t ha-1) was found from the control treatment combination of P0G0. In terms of economic analysis, the highest gross return (Tk. 471550), net return (Tk. 289337) and BCR (2.59) were also obtained from P2G2 whereas the lowest gross return (Tk. 227470), net return (Tk. 57703) and BCR (1.34) was obtained from P0G0. From the above results, it can be stated that that the P application @ 85 kg P2O5 ha-1 and GA3 application @ 145 ppm can be considered for higher yield and economic return in commercial cultivation of tuberose.

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Adaptation of anthurium cultivars as cut flowers in a subtropical area

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2011000200007 ◽

2011 ◽

Vol 46 (2) ◽

pp. 161-166 ◽

Cited By ~ 3

Author(s):

Adriane Marinho de Assis ◽

Lilian Keiko Unemoto ◽

Ricardo Tadeu de Faria ◽

Deonísio Destro ◽

Lúcia Sadayo Assari Takahashi ◽

...

Keyword(s):

Experimental Design ◽

The Other ◽

Stem Length ◽

Cut Flower ◽

Cut Flowers ◽

Subtropical Area ◽

Number Of Leaves ◽

Anthurium Andraeanum

The objective of this work was to evaluate the adaptation of anthurium (Anthurium andraeanum) cultivars as cut flowers in a subtropical area, located in north of Paraná State, Brazil. The Apalai, Ianomami, Kinã, nK 102, Parakanã, Rubi, and Terena cultivars were cultivated in a nursery under 80% shade. The number of leaves and inflorescences, floral stem length, length and width of inflorescences, and spadix length were evaluated. The experimental design was in completely randomized blocks, with six replicates and five plants per plot. During the 18 months evaluated, 'Parakanã' produced 11 inflorescences per plant, whereas the other cultivars produced seven to nine inflorescences per plant. The number of leaves produced per plant was: 'Ianomami', 25; 'Parakanã', 20; 'Apalai' and 'Terena', 15; 'Kinã' and 'Rubi', 11; and 'nK 102', 9. The Apalai, nK 102, Parakanã, and Rubi cultivars are the most recommended as cut flowers; the Ianomami cultivar is not recommended as a cut flower in this region.

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Gibberellic Acid Application and Plant Spacing Effects on Growth and Yield of Lettuce (Lactuca sativa L.)

Asian Plant Research Journal ◽

10.9734/aprj/2020/v6i230122 ◽

2020 ◽

pp. 1-13

Author(s):

Taslima Akter ◽

Md. Nazrul Islam ◽

Md. Jahedur Rahman ◽

Rebaka Sultana ◽

Chaity Dey Puja ◽

...

Keyword(s):

Gibberellic Acid ◽

Leaf Area ◽

Block Design ◽

Dry Weight ◽

Growth And Yield ◽

Cost Ratio ◽

Plant Spacing ◽

Fresh Weight ◽

Optimum Spacing ◽

Number Of Leaves

Aims: This study aimed to optimize the levels of gibberellic acid (GA3) and plant spacing on growth and yield of lettuce. Study Design: The experiment was laid out in Randomized Complete Block Design with three replications. Place and Duration of Study: Horticulture farm of Sher-e-Bangla Agricultural University, Dhaka-1207, from November 2013 to January 2014. Methodology: The experiment consisted of two factors. Factor A- two levels of gibberellic acid (GA3,) application, viz. G1= 25 ppm and G2= 50 ppm in relation to a control G0 and factor B- four plant spacing viz. S1=15cm x 15cm, S2=20 cm x 20 cm, S3=25 cm x 25 cm and S4=30 cm x 30 cm. GA3 was applied twice as a foliar application by hand sprayer at 20 and 30 days after sowing. First, second and final harvesting was done at 25, 35 and 45 days after sowing respectively. Results: The growth and yield characters of lettuce showed significant variation for different levels of GA3 and plant spacing. Among GA3 levels, 25 ppm GA3 produced the maximum number of leaves (15.6), leaf area (283.9 cm2), fresh weight (91.6 g plant-1), dry weight (11.8 g plant-1), fresh yield (1794 g plot-1) and gross yield (12 t ha-1) at final harvesting compared to control where GA3 was not used. Under plant spacing, highest plant height (17.5 cm), leaf area (281.1 cm2), fresh weight (99.1 g plant-1) and dry weight (12.1 g plant-1) was revealed from wider spacing 30 cm x 30 cm followed by optimum spacing 25cm x 25cm. Meanwhile, closure spacing 15 cm x 15 cm showed maximum fresh yield (1710 g plant-1) and gross yield (15.5 t ha-1) due to higher plant density at final harvesting. Besides, lower chlorophyll content (0.43%) and the highest number of leaves (16.2) was found from 25 cm x 25 cm at final harvesting. So, optimum spacing 25 cm x 25 cm would be more suitable considering different points of view. Moreover, the treatment combinations 25 ppm GA3 with 25 cm x 25 cm exhibited highest benefit-cost ratio (2.04) than other treatments. Conclusions: It is concluded that the combinations 25 ppm GA3 application with 25cm x 25cm spacing would be optimum for better growth and yield of lettuce

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Growth and yield of lettuce plants under salinity

Horticultura Brasileira ◽

10.1590/s0102-05362005000400014 ◽

2005 ◽

Vol 23 (4) ◽

pp. 931-934 ◽

Cited By ~ 47

Author(s):

Jerônimo L. Andriolo ◽

Gean L. da Luz ◽

Maiquel H. Witter ◽

Rodrigo dos S. Godoi ◽

Gisele T. Barros ◽

...

Keyword(s):

Experimental Design ◽

Nutrient Solution ◽

Dry Mass ◽

Growth And Yield ◽

Fresh Weight ◽

Electrical Conductivities ◽

Salinity Levels ◽

Number Of Leaves ◽

Set Up ◽

Positive Effect

Lettuce plants, cv. Vera, were grown under five salinity levels in a hydroponical experimental set-up using a 0.15 m deep sand growing bed. A standard nutrient solution was used, with the following composition, in mmol L-1: 16.9 NO3-; 2.0 H2PO4-; 1.0 SO4- 4.0 Ca++; 10.9 K+ e 1.0 Mg++, and, in mg L-1, 0.42 Mn; 0.26 Zn; 0,05 Cu; 0,50 B; 0,04 Mo, and 4.82 chelated Fe. The five salinity levels compared as treatments were obtained by varying the concentration of the standard nutrient solution, reaching average electrical conductivities (EC) of 0.80; 1.93; 2.81; 3.73 and 4.72 dS m-1, for T1, T2, T3, T4 and T5, respectively. The nutrient solution at each salinity level was supplied from a reservoir by means of a flooded-type electrical pump, for 15 minutes, at intervals of 90 minutes during the day and 420 minutes during the night. A completely randomised experimental design was used with four replications and 20 plants per plot. Four plants of each plot were harvested at 32 days after planting, to determine shoot and root dry mass, shoot fresh weight, leaf area and number of leaves per plant. Number of leaves was 18 per plant and was not affected by treatments. Dry mass of leaves increased 24,4% from T1 to T3. No relationships were found on data from stem and root dry mass. A positive effect of EC was recorded on shoot fresh mass, which increased 28.5% from T1 to T2, and decreased 16.5% from T2 to T5. Maximum LAI estimated value was 4.3 m² m-2 for an EC of 2.6 dS m-1. Salinity levels above 2.0 and 2.6 dS m-1 reduce fresh yield and plant growth, respectively.

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PENGARUH JARAK TANAM JAGUNG TERHADAP PERTUMBUHAN DAN HASIL JAGUNG SERTA KACANG TANAH YANG DITANAM SEBAGAI TANAMAN SELA

AGRICA ◽

10.37478/agr.v6i1.425 ◽

2020 ◽

Vol 6 (1) ◽

pp. 43-52

Author(s):

Murdaningsih Murdaningsih ◽

Ambrosius Lai

Keyword(s):

Experimental Design ◽

Block Design ◽

Dry Weight ◽

Growth And Yield ◽

Randomized Block Design ◽

Number Of Leaves ◽

Corn Plants ◽

Planting Distance ◽

The Impact ◽

Corn Grains

This research aims to find the effect of planting distance on the growth and yield of corn plants which were planted with peanut as intercropping plant, and the impact on the yield of peanuts planted as an intercropping plant as well as to know planting distance for corn and peanut. The experimental design used was randomized Block Design with six treatments namely J1; 55 cm x 40 cm, J2; 60 cm x 40 cm, J3; 65 cm x 40 cm, J4; 70 cm x 40 cm, J5; 75 cm x 40 cm, and J6; 80 cm x 40 cm, while peanuts are planted in the central part of the line, and the corns rows are repeated four times so that there are 24 compartments of research. Results of the study indicated that there is a significant effect on the growth and yield of corn at a distance of 75 cm x 40 cm as well as peanuts planted as an intercropping plant with high corn sidelines range from 32,08 – 132,55 cm, a number of leaves revolve around 4.17 – 9.25 strands, leaf area range from 25,84 – 52.80 cm, corncob diameter of 10.09 cm, corncob weight tan-1 171,33 gram ha-1 5,68 ton, dry weight grain of corn tan-1 80,13 grand ha-1 3,80 ton, as well as the weight of 100 grain of corn is 32,17 gram, whereas number of pods of peanut is 26,63 prolong, pods weight tan-1 88,13 grand ha-1 3,17 ton, dry weight of corn tan-1 31,25 grand ha-1 1,31 ton, and weight of 100 corn grains are 19,22 gram.

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Pengaruh dosis kascing dan bioaktivator terhadap pertumbuhan dan hasil tanaman sawi (Brassica juncea L.) yang dibudidayakan secara organik

Kultivasi ◽

10.24198/kultivasi.v18i2.22184 ◽

2019 ◽

Vol 18 (2) ◽

Author(s):

Agus Wahyudin ◽

Aep Wawan Irwan

Keyword(s):

Experimental Design ◽

Organic Farming ◽

Plant Height ◽

Brassica Juncea ◽

Block Design ◽

Growth And Yield ◽

Randomized Block Design ◽

Number Of Leaves ◽

Mustard Green

Sari. Peningkatan produktivitas sawi (Brassica juncea L.) dapat dilakukan secara organik. Tujuan penelitian ini untuk mengetahui pengaruh dosis kascing dan penggunaan bioaktivator terhadap pertumbuhan dan hasil tanaman sawi. Rancangan yang digunakan adalah Rancangan Acak Kelompok (RAK), terdiri atas sembilan kombinasi perlakuan dan diulang empat kali, masing-masing kombinasi perlakuan adalah: tanpa kascing dan tanpa bioaktivator; kascing 5 ton/ha dan tanpa bioaktivator; kascing 5 ton/ha dan bioaktivator 4 mL/L; kascing 10 ton/ha dan tanpa bioaktivator; kascing 10 ton/ha dan bioaktivator 4 mL/L; kascing 15 ton/ha dan tanpa bioaktivator; kascing 15 ton/ha dan bioaktivator 4 mL/L; kascing 20 ton/ha dan tanpa bioaktivator; serta kascing 20 ton/ha dan bioaktivator 4 mL/L. Hasil penelitian menunjukkan bahwa pemberian pupuk kascing dan bioaktivator memberikan pengaruh yang nyata terhadap tinggi tanaman, jumlah daun, berat basah tanaman, dan berat kering tanaman dibandingkan dengan tanpa pemberian kascing dan bioaktivator. Dosis pupuk kascing 5 ton/ha tanpa bioaktivator merupakan dosis yang dianjurkan karena memberikan tinggi tanaman, jumlah daun, berat basah, dan berat kering yang sama dibandingkan dengan perlakuan lainnya yang diberi pupuk kascing dan bioaktivator pada dosis yang lebih tinggi.Kata kunci: Pupuk Kascing, Bioaktivator, Tanaman Sawi, Budidaya Organik Abstract: Brown mustard yield can be increased based on organic farming. The purpose of this study was to determine the effect of vermine compost dose and bioactivactor application on the growth and yield of brown mustard. The experimental design used Randomized Block Design. There were nine treatments: without vermi manure and without bioactivator; vermi manure 5 ton/ha and without bioactivator; vermi manure 5 ton/ha and bioactivator 4 mL/L; vermi manure 10 ton/ha and without bioactivator; vermi manure 10 ton/ha and bioactivator 4 mL/L; vermi manure 15 ton/ha and without bioactivator; vermi manure 15 ton/ha and bioactivator 4 mL/L; vermi manure 20 ton/ha and without biactivator; and vermi manure 20 ton/ha and bioactivator 4 mL/L; with four replications. The results of experiment showed that all dosages of vermi manure fertilizer and bioactivator increased the plant height, number of leaves, and biomass of plant. Dosage 5 ton/ha vermi manure without biactivator gave the best result on biomass of plant.Keywords: Vermi Manure, Bioactivator, Mustard Green, Organic Farming

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PENGARUH PERBEDAAN DOSIS LARUTAN PUPUK NPK MAJEMUK TERHADAP KEBERHASILAN PERTUMBUHAN BAWANG MERAH (Allium ascalonicum L.)

ZIRAA'AH MAJALAH ILMIAH PERTANIAN ◽

10.31602/zmip.v46i2.4397 ◽

2021 ◽

Vol 46 (2) ◽

pp. 219

Author(s):

Khusna Amalia Damayanti ◽

Prasodjo Soedomo

Keyword(s):

Experimental Design ◽

Research Method ◽

Block Design ◽

Maximum Growth ◽

Growth And Yield ◽

Single Factor ◽

Duncan Multiple Range Test ◽

Randomized Block Design ◽

Number Of Leaves ◽

Range Test

This research aims to determine the type of shallot variety and the correct dosage for maximum growth and yield of shallot plants. The research method used an experimental method with the experimental design used was a single factor randomized block design (RBD) consisting of 6 treatments, namely A (Sembrani Variety and 100). ml/polybag), B (Sembrani variety and 120 ml/polybag), C (Sembrani variety and 140 ml/polybag), D (Mente's variety and 100 ml/polybag), E (Mente's variety and 120 ml/polybag), and F (Mente's variety and 140 ml/polybag) was repeated 4 times so that there were a total of 24 experimental units. The effect of the treatment was analyzed using variance and if the F test at the 5% level was significant, then to find out the best treatment was continued with the DMRT (Duncan Multiple Range Test) further test at the 5% level. The results showed that there was a significant effect on the types of shallot varieties with different dosages of NPK compound, on all research parameters. Treatment E gave the highest yield at plant height (44.49 cm), the weight of fresh tubers with leaves/clump (7.11 g), the weight of fresh tubers with leaves/plot (19.93 g), the weight of dry tubers with leaves/clump (5.90 g), weight dry tubers with leaves/plot (16.35 g). While treatment D gave the highest yield on the number of tillers (3.14), the number of leaves (6.97), the number of tubers (3.14). Treatment C gave the highest yield on tuber diameter (22.58 mm) and treatment A tuber length (31.48 mm).

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Exogenous gibberellic acid application influences on vegetative and reproductive aspects in gladiolus

Ornamental Horticulture ◽

10.1590/2447-536x.v26i2.2100 ◽

2020 ◽

Vol 26 (2) ◽

pp. 244-250

Author(s):

Abdur Rahman ◽

Ibrar Hussain ◽

Ghulam Nabi ◽

Ziaullah

Keyword(s):

Gibberellic Acid ◽

Lower Cost ◽

Block Design ◽

Ornamental Plants ◽

Growth And Yield ◽

Lower Amount ◽

Flower Opening ◽

Randomized Complete Block Design ◽

Two Factors ◽

Number Of Leaves

Abstract Ornamental plants like gladiolus are suitable option for growers with lower amount of land, as they are highly economic and have lower cost of production. An experiment was conducted with aim to study the exogenous application influence of gibberellic acid on vegetative and reproductive characteristics of gladiolus was conducted under the subtropical conditions. The experiment was laid out in two factors randomized complete block design and replicated three times. Gibberellic acid (GA3) was used in different concentrations (0, 50, 100, 150, 200 mg L-1) to corms of two cultivars of gladiolus (‘White Prosperity’ and ‘Red Advance’). Results showed that most of the parameters were significantly influenced by gibberellic acid at 200 mg L-1. The maximum sprouting, number of leaves plant-1, daughter corms per plant, less number of days to corm sprouting, days to spike emergence and flower opening were recorded in plants treated with 200 mg L-1 gibberellic acid (GA3). ‘Red Advance’ produced more number of leaves plant-1, corm diameter, corm weight, and less number of days to spike emergence and flower opening. It can be concluded from the present findings that the treatment of corms with 200 mg L-1 gibberellic acid can improve the growth and yield of cultivar Red Advance than White prosperity under the subtropical conditions.

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Influence of Gibberellic acid (GA3) on seed germination and seedling growth of Kagzi Lime

Journal of Scientific Agriculture ◽

10.25081/jsa.2017.v1.888 ◽

2018 ◽

Vol 1 ◽

pp. 62

Author(s):

W. S. Dilip, D. Singh, D. Moharana ◽

Sandeep Rout ◽

S. Patra

Keyword(s):

Seed Germination ◽

Gibberellic Acid ◽

Seedling Growth ◽

Dry Weight ◽

Germination Percentage ◽

Growth And Yield ◽

Similar Treatment ◽

Survival Percentage ◽

Tap Root ◽

Number Of Leaves

A study was conducted to estimate the influence of gibberellic acid (GA3) at different concentrations in different time intervals on seed germination and seedling growth of kagzi lime. The results revealed that Maximum germination percentage (95%) was recorded under treatment with GA3 80 ppm for 12 hours, rate of germination of seeds (25 days), height of plant (18.79 cm) at 120 DAS, number of leaves per plant (26.53), fresh and dry weight of shoot (25.84 g and 14.44 g), tap root (17.44 cm), secondary and fibrous roots (5.98 and 85.99), fresh as well as dry weight (7.04 and 4.95 g), survival percentage (85 percent) in similar treatment. Therefore, it may be concluded that the GA3 at 80 ppm has a significant effect on the seed germination and seedling growth of Kagzi Lime and can be recommended to the grower for obtaining better growth and yield.

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