GENETIC DIVERSITY OF POTATO (Solanum tuberosum L.)

Rahman, Masuma; Islam, Md. Shafiqul; Sonom, S.

doi:10.3329/bjpbg.v29i1.33704

Cited by 6 publications

(5 citation statements)

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“…A similar study was also conducted to estimate the genetic variability and advance between the genotypes. The considerable variations among the genotypes studied were indicated by all genotypes varied significantly (Rahman et al, 2016).…”

Section: Introductionmentioning

confidence: 91%

Determination of Agronomic Characteristics as Selection Criteria in Potato Crossing Lines

et al. 2022

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Vegetative propagation of potato decreases variation in commercially cultivated varieties. Induction of variability in potatoes is needed for crop improvement. Selection is selecting the best individual plants based on the desired characteristics, which will be effective when suitable characteristics are used. The objective of this study was to determine the agronomic characteristics for the selection of potato crossing lines through heritability, genetic variability, and genotypic correlation. The experiment was conducted at the Greenhouse, Sumber Brantas Village, Batu City, East Java. The materials used were 30 potato lines resulting from LJPRSD1 x AP-4. This study was arranged in a complete randomized design (RCD) with three replications. The agronomic characteristics observed include plant height, stem diameter, number of leaves, the diameter of tuber, number of tubers, tuber length, weight per tuber, starch, and glucose. Almost all characteristics observed showed high heritability values, except stem diameter and tuber length. The genetic variability in stem diameter, tuber diameter, and tuber length was low, whereas the genetic variability in other characteristics was slightly low. The genotypic correlation was significant between characteristics, except between starch content and weight per tuber. Meanwhile, the agronomic characteristics used for selection are plant height, diameter of tuber, number of tubers.

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Section: Introductionmentioning

confidence: 91%

Determination of Agronomic Characteristics as Selection Criteria in Potato Crossing Lines

et al. 2022

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“…The presence of large amount of variability might be due to diverse source of material taken as well as seasonal influence affecting the phenotypes. Many authors also reported the existence of significant variation among potato genotypes for different traits as Rahman (2015); Getachew et al (2016); Ebrahim et al (2018).…”

Section: Analysis Of Variancementioning

confidence: 98%

Correlation and path coefficient analyses of tuber yield and yield components among potato (Solanum tuberosum L.) genotypes at Bekoji, Southeastern Ethiopia

Hunde

Galalcha

Limeneh

2023

Int. J. Agril. Res. Innov. & Tech.

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The aim of the experiment was to determine the correlations between tuber yield and yield components and to measure the direct and indirect effects of yield components on tuber yield of potato genotypes. The experiment was conducted using eleven potato genotypes with one standard check variety (Belete) and a local check at Kulumsa Agricultural Research Center, Bekoji sub-station during 2020-2021. Data were collected for tuber yield, tuber dry matter content (%), plant height (cm), stem number, specific gravity, and phenological parameters. Since the two seasons had heterogeneous error variance, analysis was carried out separately. In 2020, correlation analysis indicated that the tuber yield was positively and significantly associated with stem height (0.608), marketable tuber (0.997) and positively associated with tuber dry matter content, stem number per plant, days to maturity, while it was negatively correlated with specific gravity, days to emergence and days to flowering at the genotypic level. Total tuber yield was positively and significantly correlated with days to maturity (0.640), stem height (0.791), marketable tuber (0.977) and stem number at the genotypic level. While specific gravity was positively and significantly correlated at the phenotypic level; and negatively at the genotypic level in the second season. Results of path analyses indicated that marketable tubers had the highest positive direct effect (+1.059) on total tuber yield followed by days to flowering (+0.057) and specific gravity (+0.026) in 2020 while marketable tuber (0.7107), stem height (0.2842), tuber dry matter content (0.0078), days to maturity (0.1250) had also positive direct effect in 2021. In addition, most of the indirect effects of yield components on tuber yield were significant and positive. Significant effects of marketable tuber, tuber dry matter content, days to maturity and stem height on total tuber yield, indicated that they could be used as the criteria for potato improvement and breeding programs. Int. J. Agril. Res. Innov. Tech. 12(2): 144-154, December 2022

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“…From these results, it is obvious that important variables such as tuber yield/plant, number of tubers/plant, weight of tubers, height of plant, sprouting of plants and leaves/plant might be taken during selection of parents during hybridization program and for development of elite lines (Mondal, Hossain, Rasul, & Uddin, 2007). In potato, total economic yield and its contributing traits are important and should be recommend as one of the best breeding strategy for genetic improvement of tuber yield in potato (Ahmadizadeh, Mostafa and Felenji, 2011).…”

Section: Correlation Analysismentioning

confidence: 99%

Multivariate Analysis Of Potato Genotypes For Genetic Diversity

Khan

Erum²,

Riaz

et al. 2020

Preprint

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Sustainable production of food crops relies on germplasm improvement and genetic diversity that helps to identify appropriate parents, which is very important step in breeding of genotypes having high yield potential for future use. This study was conducted to investigate the extent of genetic diversity using multivariate technique on the basis of qualitative and quantitative traits.An experiment was comprised of 74 exotic genotypes and started at National Agriculture Research Center Islamabad, Pakistan during autumn 2017-2018 and 2018-2019. Data was recorded on qualitative and quantitative traits by following standard procedures and Biplot analysis was used to calculate the significance among the studied quantitative traits to exhibit the strength of relationship between traits. Results showed significant diversity in qualitative traits and quantitative traits. Red, yellowish, brown, light yellow, light brown color tubers were produced. Alike, genotypes produced yellow, cream and white flesh color tubers. Genotypes had oval, round, oblong, elliptic and reform with medium, small and large size tubers. Alike, brown, light brown, dark red and yellow eyes color was noted. In case of quantitative traits, genotypes had high variance regarding plant height, leaf area and number of tubers per lane. Genotypes had very high genetic variance for weight of tuber per plant and weight of tuber per lane while low variance was recorded for germination, number of stem per plant and number of eyes per tuber. Significant positive correlation was observed between number of tubers per plant (TPP) with number of eyes on tubers (r = 0.241) and number of tubers per lane (TPL) (r = 0.349). But negative correlation was noted between number of tubers per plant (TPP) with plant height (r = -246), leaf area (-0.529) and germination (r = -0.283). Plant height was found significantly positive correlated with leaf area (r= 0.456), germination percentage (r = 0.255) and weight of tubers per plant (r = 0.307). Leaf area (LA) showed positive significant correlation with number of tubers per plant (r = 0.466) and weight of tubers per plant (r = 0.263)., yield and harvest index (r = 0.798, 0.755, 0.255). Weight of tubers per lane (WTL) showed positive correlation with weight of tubers per plant (r = 0.387). Regarding the interrelation between the traits and genotypes, the first two principal component axes (PC1, 24.83% and PC2, 23.46%) accounted for about 48.29% of the total variability reflecting the complexity of the variation between the plotted traits of genotypes.

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GENETIC DIVERSITY OF POTATO (Solanum tuberosum L.)

Cited by 6 publications

References 1 publication

Determination of Agronomic Characteristics as Selection Criteria in Potato Crossing Lines

Determination of Agronomic Characteristics as Selection Criteria in Potato Crossing Lines

Correlation and path coefficient analyses of tuber yield and yield components among potato (Solanum tuberosum L.) genotypes at Bekoji, Southeastern Ethiopia

Multivariate Analysis Of Potato Genotypes For Genetic Diversity

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