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A Study on the Characte:ristics and Performance of Four Varieties of Mandarin Orange at Jaintiapur

Md, Nazim Uddin
Senior Scientific Officer
Black-pepper & Bay-leaf Research Project, Harhazari, Chittagong.

Kamal Uddin Ahmad
Project Director (Potato Research),
Bangladesh Agricultural Research Institute, Dacca.

Abstract/ Executive Summary:

An observational study wa, conducted in 1973 at the Citrus Research Station of the Bangladesh Agricultural Research Institute at jaintiapur in the district of Sylhet to evaluate the characteristics and performance of four varieties of mandarin orange (Citrus reticulata), namely, Feutrell's Early, Khasia, Kinnow and Nagpuri. It was observed that the tops of the plants of Feutrell's Early and Kinnow were very bushy, closed and umbrella-shaped, while the tops of Khasia were open and Iess bushy, It was also observed that the highest yielding variety was Feutrell's Early and the lowest yielding one was Khusia. Fruits of Feutrell's Early were the heaviest in weight and the biggest in size, while the smallest and the lightest fruits were produced by the variety Khasia. In respect of sweetness . Nagpuri and Feutrell's Early were the best. The most juicy varieties were Kinnow and Khasia. Feutrell's Early, Kinnow and Nagpuri were round to be worth recommending for growing in and around Sylhet.

Keywords: Mandarin Orange, Varieties, Yield

Location: Bangladesh Agricultural Research Institute at Jaintiapur, Sylhet.

Start Date: 01-02-1973

End Date: 30-12-1973

Program Area: Variety and Species

Commodity: Orange

Objectives:

To present a detail information on varietal expression of four varieties of mandarin orange grown at Jaintiapur, Sylhet, a place located within the orange growing belt of the country.

Methodology:

Four varieties of mandarin orange (Citrus reticulata, Blanco), namely, Feutrell's Early, Khasia. Kinnow and Nagpuri, were selected as the material for the study. The study was undertaken in 1973 at the Citrus Research Station of the Bangladesh Agricultural Research Institute at Jaintiapur, Sylhet. Ten plants of each variety were marked for the purpose of investigating into their performance. All the plants included in the study were introduced from the then West Pakistan in 1964 and planted at the Citrus Research Station in the same year. They were spaced at 16 feet square, and subjected to similar cultural treatments throughout the growing period. The plants were allowed to grow normally, without pruning them at any stage. For the purpose of this study the characteristics that were taken into consideration were those pertaining to the plant, the period of flowering and picking, yield and the characteristics of fruit. For determining the spread of tops of plants, the horizontal diameter of the top at its widest part was measured. The characteristics of fruits were recorded as per eye estimation, and their edible qualities were taken into account by tasting them in an ordinary manner.

Source of Information: Bangladesh Journal of Agriculture-3, N0-1, June-1978

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Plant Characteristics:The plants were generally tall, and among the varieties under study the plants of Khasia were the tallest having the average height of 460.74 cm. The tops of the plants of Feutrell's Early and Kinnow were very bushy, closed and umbrella-shaped, while the tops of Khasia were open and less bushy. Leaves on Nagpuri were the smallest in size, while those of Kinnow Were the largest. Fruit Characteristics: Fruits of Feutrell's Early were orange with reddish flush, Khasia deep yellow, and Kinnow and Nagpuri yellowish orange. Colour of flesh of those varieties were orange, yellow, reddish orange and brick-red respectively. Yield:The higher yielding varieties were Feutrell's Early and Kinnow in respect of both number and weight, which produced on the average 540 and 455 fruits respectively per plant equivalent to 64.08 Kg and 50.95 Kg respectively. Khasia was by far the lowest yielder which produced only 55 fruits weighing 5.40 Kg per plant. Seed: Among four different varieties, the fruits of Kinnow were the most seedy having 25 seeds per fruit on the average. Feutrells occupied the second position in this respect having 20 seeds per fruit. Nagpuri produced the least number of only 9 seeds per fruit on the average. It was also observed that fruits of each and every variety had some imperfect seeds. The mean size of perfect seeds and the number of perfect and imperfect seeds produced by fruits of different varieties have been given.

Knowledge Management: Journal