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Study on the Growth and Development of Two Dragon Fruit (hylocereus Undatus) Genotypes

M. M. Alam Patwary
Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Pahartali, Chittagong

M. H. Rahman
Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Pahartali, Chittagong

H. Barua
Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Pahartali, Chittagong

S. Sarkar
Department of Agricultural Botany, Sher-e-Bangla Agricultural University, Dhaka

Md. Shamsul Alam
Planning and Evaluation Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

Abstract/ Executive Summary:

A preliminary investigation was carried out under the AEZ- 29 at the Agricultural Research Station, Bangladesh Agricultural Research Institute (BARI), Pahartali, Chittagong during December 2010 to May 2012 to evaluate two dragon fruit genotypes. The longer plant (272.13 cm) was recorded in HUP 002 while it was 263.34 cm in HUP 001 after one and half year of planting. Flower bud emergence took place after 17 months (on 9 May, 2012) in HUP 001, while it commenced in HUP 002 after 15 months (on 22 March, 2012). Flower bud required 28 days bloom from emergence and the fruit matured after 33 days from anthesis in HUP 001, while that required 35 days for HUP 002 and fruits become matured after 32 days from anthesis. Larger number (8) of flowers per plant was observed in HUP 002 while the lower was noted in HUP 001(6). Numerous anthers were observed below the stigma with attractive white petals in both the varieties. The fruit weights ranged from 200 -375 in HUP 002 but 150-200g in HUP 001. The edible portions were 91.0 and 92.0 with 12.0 and 11.4 % TSS in HUP 001 and HUP 002, respectively. Fruit pulp colour was white in HUP 001 while red in HUP 002.

Keywords: Dragon fruit, Plant growth, Floral and fruit characteristics

Location: Agricultural Research Station, BARI, Pahartali, Chittagong.

Start Date: 00-12-2010

End Date: 00-05-2012

Program Area: Variety and Species

Commodity: Dragon fruit

Objectives:

To study the growth behavior, floral biology and fruiting behavior of this newly introduced crop.

Methodology:

Cuttings of dragon fruit were collected from the Germplasm Centre of Bangladesh Agricultural University (BAU), Mymensingh as HUP 001 and Halda Valley Tea state, Fatikchari, Chittagong as HUP 002 and twelve plants of each genotypes were planted during December 2010 to May 2012 at a spacing of 2 x 2M (Jacobs and Dimitri, 1999) at the Agricultural Research Station, BARI, Pahartali, Chittagong. The plants were supported by RCC pillars having a base at the top of the pillar to allow the plants to grow properly. Manures and fertilizers were applied as per recommendation made by Rahim et al., (2009) @ 40 kg cowdung/pit & 50-100-100-10- 10-10 g/pit of Urea, TSP, MoP, gypsum, borax and zinc-sulphate, respectively. The full amounts of fertilizers were applied at the time of land preparation as basal dose. The cuttings were planted after 30 days of fertilizer application. Irrigation and other intercultural operations were done as per requirements. Dithane M-45 was applied @ 2 g/liter of water to control red rust disease. Data on the plant height, number of segments and the number of side segments were collected at every 30 days interval. Other parameters on days after transplanting to anthesis, time of anthesis, duration of anthesis, number of calyx, number of petals, stigma segments, length of flower (cm), colour of anthers, colour of stigma, petal colour, number of anthers, number of flowers per plant, date of harvest, days to harvest, number of fruits per plant, fruit weight (g), fruit length (cm), fruit breadth (cm), pulp colour, edible portion (%) and total soluble solids (TSS) were recorded. Five fruits were used as sample for measuring the fruit data. Data were analyzed statistically following paired T test.

Source of Information: The Agriculturists 11(2): 52-57 (2013) ISSN 2304-7321 (Online), ISSN 1729-5211 (Print), A Scientific Journal of Krishi Foundation

Article Link (Online Journal): http://www.banglajol.info/index.php/AGRIC/article/view/17487

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Dragon fruit could be grown successfully in chittagong region. However, considering the number of flowers, weight of fruit and other characteristics, the genotype HUP 002 was found promising. Research could be strengthened on different cultural practices as well as varietal development.

Knowledge Management: Journal