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Heterosis in Bottle Gourd

A.K.M. QUAMRUZZAMAN
Olericulture Division, Horticulture Research Centre (HRC), BARI, Gazipur-1701, Bangladesh.

M.A. RASHID
Olericulture Division, Horticulture Research Centre (HRC), BARI, Gazipur-1701, Bangladesh.

M.A.T. MASUD
Olericulture Division, Horticulture Research Centre (HRC), BARI, Gazipur-1701, Bangladesh.

M. NAZIM UDDIN
Olericulture Division, Horticulture Research Centre (HRC), BARI, Gazipur-1701, Bangladesh.

Abstract/ Executive Summary:

Heterosis in bottle gourd was studied in a set of 13 F 1 with 26 parents. Results indicated highly significant differences for all the characters among the materials studied. Heterosis was higher for yield per plant, number of fruits per plant and individual fruit weight, medium in fruit length and fruit diameter, and lower in days to I st harvest. Hybrids (F1 ) 10 x 17 and 19 x 26 manifested highest heterosis over midparent (73.1%) and better parent (61.8%), respectively, for yield per plant.

Keywords: Heterosis, Bottle gourd, Hybrid, Suitable

Location: At the farm of Olericulture Division, Horticulture Research Centre, Bangladesh Agricultural Research Institute, Gazipur,

Start Date:

End Date:

Program Area: Variety and Species

Commodity: Bottle gourd

Objectives:

To develop high yielding F1 varieties suitable for winter as well as summer rainy season cultivation and to study the heterosis in bottle gourd.

Methodology:

The mean performance for 13 F1 with 26 parents and per cent heterosis over mid parent and better parent for yield and yield contributing characters of heterotic crosses are presented . In case of days to first harvest six hybrids showed significant negative heterosis over mid parent indicating earliness. The estimates of mid parent heterosis ranged from -13.4 to 7.2%. The highest significant negative heterotic response for earliness was observed in the hybrid 22 x 29 followed by 6 x 13 (- 5.8%). Nine hybrids performed significant negative better parent heterosis. The estimates of better parent heterosis ranged from -0.9 to -13.8 percent. The highest negative heterotic effect was also observed in the hybrid 22 x 29 followed by 6 x 13 (-7.9%). Singh et al. (1988) reported significant heterosis over the better parent was ARBGH-7 x LC2-1 for days to first female flowering and PSPL x ARBGH-7 for days to first fruit harvest. Sit and Sirohi (2002) also observed that the parental populations and hybrids were significantly different with regard to flowering in bottle gourd. Among the 13 hybrids, seven hybrids showed significant positive heterotic response over mid parent for fruit length and range was 7.7-30.9%. Only one hybrid showed more than 20% heterosis. Highest percent mid parent heterosis was observed from the hybrid 10 x 17 followed by 23 x 30 (18.8%).

Source of Information: Bangladesh J. Agril. Res. 34(3) : 465-472, September 2009

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Eight crosses showed significant positive mid parent heterosis for number of fruits per plant and range was 12.5-53.8 percent. The highest significant positive heterosis was obtained by the cross 10 x 17 followed by 7 x 14 (29.4%). Seven crosses exhibited significant positive better parent heterosis for this trait. The significant positive better parent heterosis range from 12.4-42.9%. The highest significant positive better parent heterosis was also attained by the cross 10 x 17 followed by 22 x 29 (28.6%) and Singh et al. (1998) observed higher percentage of heterosis of number of fruits in bottle gourd. Similar results were also reported by Sit and Sirohi (2002).

Knowledge Management: Journal