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Study on Flowering Characteristics and Categorization of Rose Cultivars for Color, Fragrance and Usage

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

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

T. Taufique
Dept. of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

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

H. Mehraj
The United Graduate School of Agricultural Sciences, Ehime University, 3-5-7 Tarami, Matsumaya, Ehime 790-8556, Japan

Abstract/ Executive Summary:

An experiment was conducted to evaluate the performance of rose cultivars and their categorization based on color, fragrance and use. Field experiment included forty four rose cultivars coded from V₁ to V₄₄. It was found that all rose cultivars varied significantly for the studied characters like number of shoots/plant, leaf area, chlorophyll content, number of flower/plant and petals per flower. Rose cultivars were categorized in nine groups in accordance to color, three groups in accordance to the fragrance and two groups in accordance usage excluding the wild type. V₃ (Tajmahal), V₄ (Yellow star), V₁₄ (Lavender gold), V₁₆ (Compassion), V₂₁ (SAU hero), V₂₃ (Yellow gold), V₂₅ (Sleepy moon), V₂₆ (Sweet doll), V₃₀ (Chrysanthemum rose) and V₃₅ (Sweet sakata) cultivars were found as the cut flowers and rest were pot/bedding flower. Among the 44 cultivars desired one could be isolated easily for the specific purpose. Roses are vegetatively propagated and they are selected for defined traits such as stem length, flower bud, flower number, flower size and flower qualities (shape, color, fragrance). Breeding to modify a single characteristic generally results in changes to other characters as well.

Keywords: Rose, Flowering Characteristics, Categorization and Usage

Location: Rose garden, Horticulture farm, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

Start Date: 00-10-2012

End Date: 00-03-2013

Program Area: Variety and Species

Commodity: Rose

Objectives:

To evaluate the performance of rose cultivars and their categorization for color, fragrance and usage.

Methodology:

Location and period of the experiment: An experiment was conducted at rose garden, Horticulture farm at the Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during October 2012 to March 2013.

Genetic materials: Experiment consisted 44 rose cultivars viz. V₁: Wild rose; V₂: Crazy love bicolor; V₃: Tajmahal; V₄: Yellow star; V₅: Ekuse lal; V₆: Afrodita; V₇: black divorce; V₈: Attarcted red; V₉: Missing love; V₁₀: Pinky smile; V₁₁: Sweet love; V₁₂: Red baby; V₁₃: Star fire; V₁₄: Lavender gold; V₁₅: Lemon star; V₁₆: Compassion; V₁₇: Charming lady; V₁₈: Dream bangla; V₁₉: Printed moon; V₂₀: Fire and ice; V₂₁: SAU hero; V₂₂: SAU prince; V₂₃: Yellow gold; V₂₄: Ocean heart; V₂₅: Sleepy moon; V₂₆: Sweet doll; V₂₇: Moon light; V₂₈: Pain blue; V₂₉: Ruin night; V₃₀: Chrysanthemum rose; V₃₁: Mystery love; V₃₂: SAU king; V₃₃: Ice barg; V₃₄: Yellow erecta; V₃₅: Sweet sakata; V₃₆: Anindo kun hazari; V₃₇: Yellow papiliom; V₃₈: Red eye; V₃₉: Sympathy; V₄₀: Mini master; V₄₁: Pretty girl; V₄₂: Sad 23; V₄₃: Aranchan and V₄₄: Sweet mum. Three years old rose plants were selected for the experiment. Plants were pruned at 13 October, 2012.
Experimental design and data collection: Experiment was followed in Randomized Completely Block Design with three replications. Data were collected on number of shoots/plant, number of leaves/10 cm shoot, number of thorns/10 cm shoot, leaf area, chlorophyll content, days to flower bud initiation, number of flower/plant and petals per flower. Leaf area was measured by using CL-202 leaf area meter in non-destructive method. Chlorophyll content was measured by using SPAD-502.
Statistical analysis: Collected data were analyzed statistically using MSTAT-C computer package program and significance of the difference among the treatment means was estimated by the Least Significant Difference (LSD) test at 5% level of significance.

Source of Information: Journal of Bioscience and Agriculture Research, Vol. 04, Issue 01: 20-30, 2015

Article Link (Online Journal): http://www.journalbinet.com/jbar-040115-39.html

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Rose cultivars varied significantly different studied parameters like number of shoots/plant, leaf area, chlorophyll content, number of flower/plant and petals per flower also varied in color, fragrance and usages. Tajmahal (V₃), Yellow star (V₄), Lavender gold (V₁₄), Compassion (V₁₆), SAU hero (V₂₁), Yellow gold (V₂₃), Sleepy moon (V₂₅), Sweet doll (V₂₆), Chrysanthemum rose (V₃₀), Sweet sakata (V₃₅) can be used for commercial cut flowers production in farmer’s field. But further trial is needed using the cut rose cultivars only. Rest of the cultivars can be produced as pot/bed flowers in accordance of the user choice. Breeding programmes of the rose focus on improvements of various characteristics to enhance ornamental value including color, size, form, fragrance of the bloom and plant response to the environment. Growth and yield performance evaluation and morphological categorization of these forty four rose cultivars by color, fragrance and usage may help to the breeder to select the parent for the improvement of the rose.

Knowledge Management: Journal