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Phenological Studies of Bilatidhania (eryngium Foetidum L.) at Different Growth Stages

S. N. Mozumder
Research Wing, BARI, Gazi pur-1701

M. M. Rahaman
Department of Horticulture, BSMRAU, Gazipur-1706

M. M. Hossain
Department of Horticulture, BSMRAU, Gazipur-1706

J. U. Ahmed
Department of Crop Botany, BSMRAU, Salna, Gazipur-1706

Abstract/ Executive Summary:

The study was conducted at the Horticulture Research Field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur during November. 2006 to August 2007 under upland cond it ion to observe the phonological characteristics of Bilatidhoni a (ERYNGIUM FOETIDUM L.). Bilatidhonia plants are sciophilus (shade- loving), erect perennial herb, grow up to 90 cm when flowering. Plants 8-40 cm high form a basal rosette. Root is thin and spindle-shaped. Tap root with few branching, fusiform with fibrous roots. The main root length increased up to 2 I .8cm at 180 days after sowing (DAS). The stem is reduced, weak, green, solid and covered by leaf sheath, usually not visible before flowering in standing plant. An indeterminate umbel, crowded into dense heads surrounded by a whorl of rigid bracts. Inflorescence divarieately trifurcate; lateral branches often continuing to form a monochasium, heads numerous, short-pedunculate. Flowers are pentamerous, minute, greenish white; each flower is surrounded by a bract. Small flowers closely arranged in dense umbels, greenish calyx with white corolla, accent, appearing in April to December. Fruit small , globose head or ovoid-globose, I .l - I .3 mm, covered with tubercles greenish in younger stage, mature to brown. Fruit appears in clusters of small green globes which mature to brown. Seeds surrounded with hairy coverings that hinder to observe its actual shape.

Keywords: Bilatidhonia, Phenology, growth stage, study.

Location: Horticulture Research Field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur

Start Date: 00-11-2006

End Date: 00-08-2007

Program Area: Crop-Soil-Water Management

Commodity: Coriander

Objectives:

To investigate morphological characteristics of Bilatidhania at different growth stages.

Methodology:

The study was conducted at the Horticulture Research Field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur during November, 2006 to August 2007 under upland condition. For morphological study, six raised ( 15 cm) plots of 3x 1m size were prepared in two rows keeping 50 cm bed to bed and bed to ail distance for drainage. Plots are prepared carefully to have very good tilth as Bilatidhonia seeds are very small and responsive to the physical condition of the beds (Moni ruzzaman, 2000). Manures and fertilizers were applied @ cowdung 15 ton , urea 350 kg, TSP 350 kg and MOP 200 kg per hectare (Islam et al., 2003. The entire amount of cowdung and TSP with one fourth of urea and MP were applied during final land preparation. The rest of the urea and MP were applied in three equal installments at 45, 75 and 105 days after sowing of seeds

Source of Information: Ann. Bangladesh Agric. (2010) 14 (1&2): 75-84

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Experimental observation seems the aroma of Bilatidhonia increased with the increase of plant height and leaf expansion up to 105 days after emergence then remain stable up to flowering then declined. Well expanded, succulent leaves before flowering contain highest aroma.

Knowledge Management: Journal