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Evaluation of Indian Dillenia Germplasm (dillenia Indica) at Jaintapur, Sylhet

M. H. M. B. Bhuyan
Scientific Officer
Citrus Research Station, Jaintapur, Sylhet

Jhutan C. Sarker
Scientific Officer

S. M. L. Rahman
Senior Scientific Officer
Citrus Research Station, Jaintapur, Sylhet

Abstract/ Executive Summary:

The present study was conducted at CRS, Jaintapur, Sylhet to evaluate the Indian dillenia germplasm. There were differences among the germplasm studied regarding plant height, base girth, spreading, number of branches/plant, number of fruits per plant and yield. The highest plant height, base girth and size of leaf were observed in DI Jai-003. DI Jai-001 was noted superior with bigger canopy size. Maximum number of fruits/plant was obtained from DI Jai-001 (332) while minimum (230) from DI Jai-003. Likely the highest yield (247.34 kg/plant) was attained from DI Jai-001 compared to the lowest (166.6 kg/plant) in DI Jai-002. The heaviest fruit (870 g) was obtained from DI Jai-003 as against the lowest (680 g) from DI Jai-002. Fruit size was noted the largest (9.8×12.6 cm) in DI Jai-003, while the smallest (9.1×11.5 cm) in DI Jai-002. All the fruits yielded same number of bracts/fruit (5). But there were variations among the single bract weight. Maximum single bract weight (182 g) was found in Di Jai-002. The highest number of seed/fruits was recorded in DI Jai-001 (363). Maximum TSS% (5.3%) was found in DI Jai-003, as compared to the lowest (5.1%) in DI Jai-002. Maximum edible portion (80.0%) was recorded in DI Jai-003 followed by ZM Jai-001 (74.5%). Variation also found in qualitative fruit characters. Fruits of all the germplasm were of green color at young stage but turns in different colors at maturity. DI Jai-001 remains green, DI Jai-002 turns to radish green, while DI Jai-003 turns to coppery green. All the fruits were of spherical shape.

Keywords: Dillenia indica, Growth parameters, Yield and quality, Bract, Qualitative characters

Location: Citrus Research Station, Jaintapur, Sylhet

Start Date: 00-02-2013

End Date: 00-08-2014

Program Area: Variety and Species

Non-commodity: Performance

Objectives:

To study the performance of Indian dillenia germplasm at Jaintapur, Sylhet
To evaluate, characterized and documented the Indian dillenia germplasm for improvement
To select superior Indian dillenia germplam in order to release as variety.

Methodology:

The study was conducted at the Citrus Research Station (CRS), Jaintapur, Sylhet during February 2013 to August 2014. Three Indian dillenia germplasm viz. DI Jai-001, DI Jai-002 and DI Jai-003 were evaluated under this study. Those plants are of ten years of age having uniform growth. These plants were fertilized with cowdung 10 kg, urea 200 g, TSP 250 g and MoP 200 g in two installments in a year, first in June-July, second in October-November. Fully mature fruits were harvested from the plant during September-October 2013. The plants were irrigated at an interval of 15 days during dry period. After full maturity randomly selected five fruits were collected from each plant for collecting data. Data on plant height (m), base girth of plant (cm), number of main branches/plant, plant spread (N-S x E-W), number of fruits/plant, single fruit weight (g), fruit size (cm), number of seeds/fruit, number of bract/fruit, weight of bract (g), edible portion (%) and yield/plant (kg) were recorded from each plant and statistically analyzed.

Source of Information: Research Report on Horticultural Crops 2013-14. Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 15000/-

Total Budget (Tk.) : 15000/-

Achievement/Findings:

From the above findings it may be concluded that DI Hat-001 was superior in plant growth, fruit/plant and yield, the germplasm DI Hat-003 was found unique in respect of single fruit weight, fruit size, TSS content and percent edible portion,. Considering these both DI Hat-001 and DI Hat-003 were promising and might be use for improvement of Indian dillenia.

Knowledge Management: Report/Proceedings