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Performance of Gladiolus as Influenced by Boron and Zinc

N. K. Halder
Soil & Water Mgt. Section, HRC, BARI, Gajipur - 1701, Bangladesh

Md. Rafiuddin
RARS, BARI, Jessore

M. A. Siddiky
Soil & Water Mgt. Section, HRC, BARI, Gajipur - 1701, Bangladesh

R. Gomes
Soil Science, BARI, Gajipur - 1701, Bangladesh

Kabita Anju-Man-Ara Begam
HRC, BARI, Gajipur - 1701, Bangladesh

Abstract/ Executive Summary:

The field study of B and Zn on Gladiolus was conducted at Floriculture Farm of HRC, Gazipur and RARS, Jessore during 2005-2006. The objective was to evaluate the response of B and Zn and to find out the optimum dose of the same for production of gladiolus. It appeared in studied data reveals that B and Zn made promising response to the growth and floral characters of gladiolus. It was also noticed in the tables that B and Zn both either in single or in combination exerted tremendous effect on the yield and quality of gladiolus. However, with subsequent addition of higher rates of B and Zn progressively increased the selective growth and flower characters to some extent and beyond the further increment of the dosage declined the results noticeably. It is also reported that gladiolus is highly responsive to chemical fertilizers. The sixteen treatment combinations included in the study noted that B and Zn at the rate of B_2.0 Zn_4.5 kg ha^-1. along with blanket dose of N₃₇₅ P₁₅₀ K₂₅₀ S₂₀ kg and CD 5 t ha^-1 exhibited the best performance in flower production and stretched the vase life of flower. The studied parameters like plant height (79.83 and 87.61 cm), length of spike (71.2 and 67.33 cm) length of rachis (48.86 and 45.08 cm) and leaves number (10.77 and 9.87/plant) significantly responded to the combined application of boron and zinc at the rate of B_2.0 Zn_4.54 as compared to other treatment combinations. Floral characters like floret number (12.85 and 12.45/spike), floret size (9.76x8.93 and 10.28x9.77 cm) and weight of stick (36.73 and 45.12 g) also significantly influenced by said treatment (B_2.0 Zn_4.5 kg ha^-1) which was markedly differed over rest of treatments combination. Similar trend was noticed as well in single application of B and Zn with increase rates.

Keywords: Gladiolus, Boron, Zinc, Floert, Floral Stick, Vase life

Location:

Start Date: 00-00-2005

End Date: 00-00-2006

Program Area: Crop-Soil-Water Management

Commodity: Gladiolus

Objectives:

To evaluate the response of gladiolus to B and Zn and their optimum dose for maximizing flower yield of gladiolus in Grey Terrace, Soils of Joydebpur and High Gangetic Alluvial Soils at Jessore region.

Methodology:

The field trial of B and Zn on gladiolus was conducted at Floriculture field of Horticultural Research Centre, BARI, Gazipur and Jessore during rabi season of 2005-2006. The objective was to investigate and evaluate the response of gladiolus to boron and zinc and their optimum requirement for growth, flowering, flower quality and corm production of gladiolus. Nutrient status of experimental soils were found to be low, organic matter was also far below of the optimum level. There were sixteen treatment combinations comprising four levels of B (0, 1, 2 and 3 kg ha^-1) and four levels of Zn (0, 1.5, 3.0 and 4.5 kg ha^-1) were taken in the study. The experiment was laid out in randomized block design having replicated thrice. The unit plot size and plant spacing were 1x0.9 m and 25x15 cm, respectively. BARI Gladiolus-1 was used as a test crop. The combined blanket dose of N₃₇₅ P₁₅₀ K₂₅₀ S₂₀ kg ha^-1 + CD 5 t ha^-1 were taken in the study. The planting material corms were sown on 5th December/05 at both the locations. All P, K, S, B, Zn and CD except N were applied and mixed up with the soil during final land preparation. Nitrogen was applied in three equal splits, first ¹/₃rd of N at 30, second top-dress at 45 and remaining ¹/₃rd at 60 days of sowing. Intercultural operations viz. weeding, irrigation, racking etc were performed in time. Full bloomed flowers were cut time to time to record the field data. The collected data of required parameters from 10 randomly selected plants were analysed statistically and adjusted with DMRT and LSD tests at 5% level of significance.

Source of Information: Pakistan Journal of Biological Sciences, 10: 581-585; ISSN 1028-8880

Article Link (Online Journal): DOI: 10.3923/pjbs.2007.581.585; URL: http://scialert.net/abstract/?doi=pjbs.2007.581.585

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was concluded from the study at both the locations of Joydebpur and Jessore reveale that Boron at the rate of B_1.90and Zinc at the rate of Zn_2.92 kg ha^-1 along with the blanket dose of N₃₇₅ P₁₅₀ K₂₅₀ S₂₀ kg and CD 5 t ha^-1 was found to be optimum for gladiolus production. So it may be summarized that Boron and Zinc at the rate of B_2.0 kg and Zn_3.0 kg ha^-1 along with the said blanket dose could be suitable for maximizing yield and flower quality of Gladiolus at Grey Terrace Soils of Joydebpur and high Gangatic Floodplain Alluvial Soils of Jessore regions in Bangladesh.

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