To make potato production more sustainable for smallholder farmers, product diversification through processing is critical. On the other hand, the processing sector mandated some stringent standards in order to maintain product quality, hence potato quality evaluations are required for chip processing industries. Specific gravity, starch, reducing sugars, tuber dry matter, and chip color are all important characteristics to consider for processing. This study was designed to find suitable potato varieties with satisfactory attributes for processing chips, in comparison with other processing potato varieties. Keeping this in mind, the study was performed during the winter season of 2019–2020 and 2020–2021 in Bangladesh. Six processing types of potato varieties viz. BARI Alu-25 (Asterix), BARI Alu-28 (Lady Rosetta), BARI Alu-29 (Courage), BARI Alu-68 (Atlantic), BARI Alu-70 (Destiny), and BARI Alu-71 (Dolly) were evaluated for different quality parameters (specific gravity, dry matter, starch content, reducing sugar, chip color, and crispiness). The result of the study showed an ample variation in the studied parameters among the potato varieties. Among the varieties, BARI Alu-28 (Lady Rosetta) and BARI Alu-29 (Courage) were found better for all the quality parameters, such as dry matter, starch, reducing sugar, chip color, and crispiness, and could be recommended for the processing industries.

Biofortified potato could contribute a major role in food security for millions of people. It could help to alleviate worldwide micronutrient malnutrition. An experiment was carried out during 2019-2020 growing season with 49 accessions following randomized complete block design with three replications in order to evaluate and classify agro-morphological traits in Breeder seed production centre (BSPC), Debiganj, Panchagarh. Eight quantitative characters i.e. germination percent, foliage coverage, stem number per hill, plant height, plant vigor, tuber number per plant, tuber weight per plant, yield per plant were measured. Principal components (PC) analysis showed three components explained 72.16 % of the total variation among traits. The first PC assigned 35.22 % and the second PC assigned 58.47 % of total variation between traits. The first PC was more related to yield per plant and weight of tuber. Forty-nine germplasm was placed on three cluster based on cluster analysis using a hierarchical classification (HCA). All accessions were discriminated and high morphological variation was observed. Thus, the outcomes of principal component analysis used in the study have revealed the high level of genetic variation and the traits contributing to the variation were identified. C1P403, CIP404, CIP405, CIP413 and CIP445 accessions identified as superior based on cluster relationship and PCA bi-plot.

Potato breeding in Bangladesh is very challenging because it is grown in the short winter season, and flowering does not occur naturally, explaining why artificial lighting and extra care are needed. In addition, the breeding scheme is mainly focused on improving potato yield, followed by tuber quality. The goal of this study was to choose male parents, as well as the effect of environment, on flowering and fruit (berry) setting and to estimate the combining ability among promising BARI-released potato varieties in the second filial generation. Lines of seven Bangladesh Agricultural Research Institute (BARI) varieties were crossed with two BARI variety potato parents as the tester (Line × tester). The BARI Alu-86, BARI Alu-72, BARI Alu-73, and BARI Alu-53 were selected as the best male parents based on the abundance of pollen and fruit set. In both years, flower initiation days varied among clones. For the majority of the traits, such as plant height, tuber number, and yield per plant, the variance of general combining ability (GCA) and specific combining ability (SCA) varied. The inheritance of the considered trait was predominant by non-additive gene action. Concerning general combining ability, for plant height, parents ‘BARI Alu-41’ and ‘BARI Alu-53’, for stem per hill, ‘BARI Alu-79′, for tuber number, ‘BARI Alu-37’, and for yield, ‘BARI Alu-37’ and ‘BARI Alu-79’ contributed complementary favorable alleles. The specific combining ability indicated ‘BARI Alu-37’ × ‘BARI Alu-86’ and ‘BARI Alu-77’ × ‘BARI Alu-72’ were the best potential hybrid families for the production of improved genotypes of tuber yield and tuber number. This study will help to design a breeding program following potato population development and the selection of progeny before their utilization as progenitors.

Potato is a strategic crop that contributes significantly to food security due to its short growing period and high yield per unit area. Genotype selection based on multiple traits is important for identifying superior germplasm. The goal of this study was to identify promising potato genotypes with export potential to enhance potato exports from Bangladesh. This study was conducted across four agroecological zones in Bangladesh during 2019–2020 and 2020–2021 to identify high‐quality potato varieties suitable for export using the multitrait genotype‐ideotype distance index (MGIDI). Thirty potato varieties released by the Bangladesh Agricultural Research Institute (BARI) were evaluated for traits such as plant height, stem number per hill, tuber weight per hill, tuber yield, dry matter, tuber grading, storability, and disease incidence. MGIDI analysis identified six superior genotypes viz., BARI Alu‐7, BARI Alu‐40, BARI Alu‐46, BARI Alu‐97, BARI Alu‐62, and BARI Alu‐37 considering a selection intensity of 20%. These genotypes demonstrated strong performance, revealing both their strengths and weaknesses in relation to the identified factors. Considering export features, BARI Alu‐62 and BARI Alu‐97 were considered the best among those six varieties for producing export quality potato. This research reveals the complex relationship between potato traits, showing how multitrait genotype selection can guide breeding strategies. Enhancing these traits can boost Bangladesh's potato exports, benefiting the economy and society.

Background: Scarcity of improved cultivars with wide adaptability and stability in tuber yield is one of the most important reasons for poor yield of potato in Bangladesh. The stable cultivars which perform well over a wide range of environments become very important for farmers and processors because they require reliable production and quality. The current study was aimed to evaluate 10 potato genotypes (eight BARI released cultivars and two advanced clones) grown in six regions to find high yielding and stable performing genotypes. Methods: Ten potato genotypes were evaluated at six locations of Bangladesh during season 2017-2018 following a randomized complete block design with three replications. The potato genotypes were sown on 15th November 2017. Fertilizer doses, irrigation, plant protection, weeding, earthing up and other agronomic practices were applied according to Tuber Crops Research Center (TCRC), Bangladesh Agricultural Research Institute (BARI) recommendation. Plant height, canopy coverage, stems per hill, tubers per hill, marketable and non-marketable tuber yield at 65 days and at 90 days, tuber weight and dry matter (%) were recorded respectively. Result: Additive Main effect and Multiplicative Interaction (AMMI), genotype and genotype x environment interaction (GGE) bi-plot analysis revealed that environment and genotype effects were highly significant. AMMI and GGE bi-plot illustrated that environments were diverse and variation among genotypes were found. Considering yield and yield contributing characters, BARI Alu-91 (Carolus) and BARI Alu-25 (Asterix) showed higher yield without further influenced by environment. BARI Alu-89 (Fortus), Clone 12.2 and Colomba had better mean performance with more adaptability and stability.