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An Evaluation of Some Japanese Lisianthus (eustoma Grandiflorum) Varieties Grown in Bangladesh

A. F. M. Jamal Uddin
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

M. S. Islam
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

H. Mehraj
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

M. Z. K. Roni
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

S. Shahrin
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

Abstract/ Executive Summary:

A pot experiment was conducted for the first time in Bangladesh, at the Horticulture Farm of Sher-e- Bangla Agricultural University, Dhaka during November, 2010 to July, 2011 to asses the adaptability of seven lisianthus (Eustoma grandiflorum) cultivars namely Micky Rose, Pink Rose, Azuma No Yosooi, Purple Edge Glass, Piccolo Blue, Mellow Purple and Royal Violet for commercial cultivation in Bangladesh. The experiment was conducted in a Randomized Complete Block Design with nine replications. Significant differences among cultivars were noted for all the attributes evaluated. The highest number of flowers (16.0/plant) was produced by Piccolo Blue and the lowest from Pink Rose (7.0/plant). All the cultivars in this study showed very good shelf life (12.0-25.0days) in normal condition. All the seven lisianthus cultivars performed satisfactorily as ideal cut flowers. Further work may be done to develop these as commercial cultivars in Bangladesh.

Keywords: Eustoma, Petal color, Cut flower

Location: Horticulture Farm, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

Start Date: 00-11-2010

End Date: 00-07-2011

Program Area: Variety and Species

Commodity: Flower

Objectives:

To find out seven Japanese lisianthus cultivars suitability on the basis of different parameters for commercial cultivation and
To develop them as cut flower in Bangladesh.

Methodology:

A pot experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during November, 2010 to July, 2011. In the experiment seven Japanese cultivars of lisianthus were used which are Micky Rose, Pink Rose, Azuma No Yosooi, Purple Edge Glass, Piccolo Blue, Mellow Purple and Royal Violet. The experiment was carried out in a Randomized Complete Block Design (RCBD) with nine replications. Seeds were collected from Sakata Seed Corporation, Japan and were sown in mid November, 2010 in soil of germination trays. Mist irrigation was provided 5-7 times a day and the trays were placed in a cool and shady place. Following germination, 90 days old seedlings were transplanted in previously prepared pots on February, 2011 at 4 leaf stage, placed in a shade house and irrigated as required. Sixty three pots with single plant in each pot were used in the experiment. Pot mixture was prepared by mixing well decomposed cowdung, soil and sand at a proportion of 1:1:1. Data on plant height, days required to flower bud initiation and blooming, number of flower buds and flowers per plant, days to flower senescence, coloration (L*, a*, b*, C*, hab and visual color) and vase life were recorded. Petal colors at three different locations of the outer epidermis (Ø 10 mm) were measured using a handy tristimulus colorimeter, NR-3000 (NIPPON Denshoku), followed by L* (lightness), a*, and b* (two Cartesian coordinates), based on CIElab scale with the standard CIE observer (100 visual field) and CIE standard illuminant D65 (CIE, 1986; McGuire, 1992). Beams effective axes were at the angle of 45±20 from the normal of the specimen surface in illuminated petals. Metric chroma, C* and hue angel, hab (CIElab notation), were calculated as; C*= (a*2 + b*2)0.5 and hab = tang-1 (b*/a*). Three stems were selected at random from each cultivar, cut to 25 cm, and placed in a 500 ml conical flask containing tap water. Stems that had one flower about to bloom and one or two unopened flower-bud were selected. Stem ends were cut and tap water was changed in every alternate days. The number of days till the wilting of flowers and buds were recorded to determine the vase life. Collected data were analyzed using the MSTATC program. the means for all the treatments were calculated and the analysis of variance was performed by F–test (Variance Ratio). Differences among treatments were evaluated by Duncan’s Multiple Range (DMRT) test.

Source of Information: The Agriculturists 11(1): 56-60 (2013) ISSN 2304-7321 (Online), ISSN 1729-5211 (Print), A Scientific Journal of Krishi Foundation

Article Link (Online Journal): http://banglajol.info/index.php/AGRIC/article/view/15243/10806

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Knowledge Management: Journal