Abstract
Seven exotic varieties of advanced generation (Cimega, Farida, Jelly, Memphis, Panamera, Taisiya and 7four7) along with four checks (BARI Alu-7, BARI Alu-13, BARI Alu-25 and BARI Alu-28) of potato were evaluated at five agro-ecological locations of Bangladesh during 2016-17 to identify stable varieties for table and processing purposes. Results indicated significant variation among the varieties and locations. To identify the early bulking varieties, tuber yield at 65 DAP was recorded, which showed that the variety 7four7 gave maximum yield (28.1 t ha-1). So, it can be selected as an early market variety. The maturity period of the varieties varied from 85 to 95 days. At the final harvest (95 DAP), the highest average yield over location was also produced by 7four7 (38.7 t ha-1). The varieties Cimega and Memphis also gave comparable yields to that of 7four7 (37.3 and 36.7 t ha-1, respectively). Farida was found suitable for table purposes because of its high yield, medium-sized tubers, oval and smooth shape and good eating qualities. These four varieties were significantly better than the checks in yield. The variety Taisiya produced tubers with good size and shape but low in dry matter content. Memphis produced maximum large-sized tubers, and so it may be suitable for processing. All the varieties produced good dry matter (18-20%). From the AMMI stability analysis, Cimega and 7four7 were the most stable varieties. Taisiya and Memphis were found as medium stable. Based on the stability, tuber yield and other characters, these four varieties may be selected for further studies in the RYT before release as specific purpose varieties. SAARC J. Agric., 19(2): 27-36 (2021)
Highlights
Potato is a very promising food crop in Bangladesh
Seven exotic varieties like Cimega, Farida, Jelly, Memphis, Panamera, Taisiya and 7four7, along with four standard varieties viz. BARI Alu-7 (Diamant), BARI Alu-13 (Granola), BARI Alu-25 (Asterix) and BARI Alu-28 (Lady Rosetta) as checks were evaluated at five locations across the country (Munshiganj, Bogra, Jashore, Jamalpur and Debiganj) during 2016-17 in RCB (Randomized Complete Block) design with three replications
Data were recorded on plant height, number of stems/hill, days to maturity, number of tubers/hill, the weight of tubers/hill, tuber yield/plot, dry matter content of tubers, and tuber grading by number and weight
Summary
Potato is a very promising food crop in Bangladesh. It produces maximum fresh as well as dry matter per unit area and time compared to any other food crop (Singh, 2008). This problem must be solved to encourage the farmers to grow more potatoes because this crop can be grown in a very short time with less energy, can be harvested and processed very can provide more energy and nutrition than any other crop (Rashid and Hoque, 2009). The most important solutions for this problem are: i) to improve the quality of the produce so that our potatoes are accepted by the consumers of other countries, ii) to increase the size and dry matter of our potatoes so that those can be used in the processing industries, and iii) to motivate the mass people to eat more potatoes as a staple food and as a vegetable (Kundu and Kabir, 2012). Whatever may be the purpose, stable varieties with higher yield and good tuber qualities for export, processing and home use are imminent
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