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Physico-morphological Variation in Hyacinth Bean [lablab Purpureus (l.) Sweet]

M. S. ISLAM
Senior Scientific Officer
HRC, Bangladesh Agricultural Research Institute (BARI)

M. M. RAHMAN2
Professor
Dept. of Horticulture and Crop Botany, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh.

T. HOSSAIN
Professor
Dept. of Horticulture and Crop Botany, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh.

Abstract/ Executive Summary:

Forty-four hyacinth bean genotypes were evaluated for different qualitative and quantitative characters during July 2005 to February 2006 at Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur. The genotypes showed considerable variations for most of the morpho-physical traits. Shape, size and colour of vein, leaf, petiole, stem, flower, pod and seed varied among the genotypes. Days to first flower ranged from 47.6 to 136.3 days indicating the presence of early variety. Individual pod weight varied from 1.47 (HB042) to 12.3g (HB009). The genotype HB027 produced the maximum number of pods/ plant (425) closely followed by HB001 (385). Similar trend was observed for pod yield/plant. The genotype HB027 produced the highest pod yield/plant (3.45kg) followed by HB001 (3.35kg). 100-green seed weight ranged from 4.0g to 73.33g, which indicated the presence of bold seeded genotypes. Among the genotypes, HB027 and HB007 produced very bold green seed and higher green pod yield/plant, therefore, they can be selected for both pod and green seed production purpose.

Keywords: Physico-morphological, Hyacinth bean.

Location: July 2005 to February 2006 at the experimental Farm of Horticulture Department of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU)

Start Date: 00-07-2005

End Date: 00-02-2006

Program Area: Variety and Species

Commodity: Hyacinth bean

Objectives:

The present investigation was, therefore, undertaken to assess the physico-morphological variability among collected genotypes.

Methodology:

The experiment was conducted during July 2005 to February 2006 at the experimental Farm of Horticulture Department of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), including 44 diverse genotypes of hyacinth bean. The experiment was laid out in a randomized complete block design with three replications. The unit plot size was 1.5m × 5.0m accommodating five pits/bed. Plants were spaced at 1.0 m in a bed and 2.0 m between two adjacent beds. Two seeds of all genotypes were sown in polybag and ten days old seedlings were transplanted in the experimental field on 1 August 2005. Out of two seedlings/pit, one was removed after 2 weeks of transplanting. The crop was fertilized with cowdung @10 ton, Urea 50 kg, TSP 150 kg and MoP 150/kg (Rashid, 1999). The full dose of cowdung, TSP and one half dose of MoP were applied basally during pit preparation one week before transplanting. The remaining MoP and urea were top dressed in the three equal installments at 15, 30, and 45 days after transplanting. Each plant was given bamboo sticks to climb on. Weeding was done whenever necessary. The plants were irrigated properly. The crop was protected from the attack of pest mainly aphids, jute hairy caterpillar, and pod borer by regular spraying of Maladan @ 2 ml/L. Data were recorded as per descriptor of AVRDC characterization sheet of hyacinth bean and Sultana (2001). Analysis of variance was made using MSTAT software.

Source of Information: Bangladesh J. Agril. Res. 35(3) : 431-438, September 2010, ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Among the genotypes, HB027 and HB007 produced very bold green seed and higher green pod yield/plant, therefore, they can be selected for both pod and green seed production purpose.

Knowledge Management: Journal