Genetic Diversity among Tomato Accessions based on Agro-Morphological Traits

Hussain, Izhar; Khan, Sher Aslam; Ali, Sajid; Farid, Abid; Ali, Naushad; Ali, Sardar; Masaud, Shah; Hussain, Ijaz; Azeem, Kamran; Raza, Haneef

doi:10.17576/jsm-2018-4711-06

Cited by 15 publications

(13 citation statements)

References 18 publications

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“…PC1 accounted for 21.23 per cent of the total variation and almost all the characters under study showed positive loadings except days to flowering, days to 50% flowering, pericarp thickness, number of locules and single fruit weight. Hussain et al (2018) reported similar findings.…”

Section: Resultssupporting

confidence: 68%

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Selection of tomato (Solanum lycopersicum L.) lines for fresh and processing market through multivariate analysis

2022

EJPB

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A total of 36 tomato accessions were subjected to principal component analysis (PCA) based on seventeen yield and quality traits. The overall variation was split into seven major principle components, which accounted for 81.62 per cent of the total variation. The bi-plot was constructed using the first two PCs, in which the genotypes CBESL133, CBESL129, CBESL115, CBESL121, CBESL101, CBESL114, CBESL136, CBESL102 and CBESL111 were dispersed across all four quadrates, indicating the greatest genetic divergence. The first two PCs contributed the most divergence due to the yield and yield related traits. In Pearson's correlation analysis, the number of fruits per plant, the number of clusters per plant, plant height, single fruit weight and ascorbic acid content were positive and significantly associated with yield per plant. The lines grouped under PC1 and PC2 were suitable for the yield improvement breeding programme. The lines suitable for processing come under PC4 and PC5.

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Section: Resultssupporting

confidence: 68%

“…Improving the above-mentioned traits will improve yield per plant indirectly. The results were on par with the findings of Hussain et al (2018) and De-Souza et al (2012).…”

Section: Cbesl118supporting

confidence: 71%

Selection of tomato (Solanum lycopersicum L.) lines for fresh and processing market through multivariate analysis

2022

EJPB

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“…Meanwhile, volcanoes that erupt near to the poles or higher latitudes are uncertain whether they will cause cooling because the sulfurous aerosols are restricted to wind patterns around the poles (Sun et al, 2019). The total amount of solar radiation touching the earth surface varies by little margins as the energy released by the sun only differs by 1.3 W/m 2 which is associated with darker areas on the sun termed as sunspots (Hussain et al, 2018;Adnan et al, 2020). Approximately after every decade, the total number of darker areas on the sun changes from a maximum to a minimum number.…”

Section: General Background and Climate Change Statusmentioning

confidence: 99%

Uncovering the Research Gaps to Alleviate the Negative Impacts of Climate Change on Food Security: A Review

Uzair²,

et al. 2022

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Climatic variability has been acquiring an extensive consideration due to its widespread ability to impact food production and livelihoods. Climate change has the potential to intersperse global approaches in alleviating hunger and undernutrition. It is hypothesized that climate shifts bring substantial negative impacts on food production systems, thereby intimidating food security. Vast developments have been made addressing the global climate change, undernourishment, and hunger for the last few decades, partly due to the increase in food productivity through augmented agricultural managements. However, the growing population has increased the demand for food, putting pressure on food systems. Moreover, the potential climate change impacts are still unclear more obviously at the regional scales. Climate change is expected to boost food insecurity challenges in areas already vulnerable to climate change. Human-induced climate change is expected to impact food quality, quantity, and potentiality to dispense it equitably. Global capabilities to ascertain the food security and nutritional reasonableness facing expeditious shifts in biophysical conditions are likely to be the main factors determining the level of global disease incidence. It can be apprehended that all food security components (mainly food access and utilization) likely be under indirect effect via pledged impacts on ménage, incomes, and damages to health. The corroboration supports the dire need for huge focused investments in mitigation and adaptation measures to have sustainable, climate-smart, eco-friendly, and climate stress resilient food production systems. In this paper, we discussed the foremost pathways of how climate change impacts our food production systems as well as the social, and economic factors that in the mastery of unbiased food distribution. Likewise, we analyze the research gaps and biases about climate change and food security. Climate change is often responsible for food insecurity issues, not focusing on the fact that food production systems have magnified the climate change process. Provided the critical threats to food security, the focus needs to be shifted to an implementation oriented-agenda to potentially cope with current challenges. Therefore, this review seeks to have a more unprejudiced view and thus interpret the fusion association between climate change and food security by imperatively scrutinizing all factors.

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“…Sehgal [7] reported that total fruits per plant, days to 50 % flowering, pericarp thickness, plant height and days to first fruiting contributed more positively to PC. Hussain [13] reported that the traits such as day to 50% flowering, number of days to fruiting, number of fruits cluster-1, number of fruit plant-1, plant height, fruit length and fruit width contributed more positively to PC. Kumar [14] reported that days to 50% flowering, average fruit weight, pericarp thickness, plant height and fruit yield per plant contributed more positively to PC.…”

Section: Fig 1 Principal Component Analysismentioning

confidence: 99%

Principal Component Analysis Approach for Comprehensive Screening of Tomato Germplasm for Polyhouse Condition

Sinha

Singh

Bhardwaj

et al. 2021

JEAI

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Yield and yield contributing attributes are the mostly targeted in tomato improvement programme so the existence of variability has prime importance in plant breeding. In this study 14 genotypes were assessed with principal component analyses (PCA) based on morphological and biochemical traits to select genotypes and traits for future breeding program. Based on the PCA with 21 traits, 14 components were formed however, 6 PCs had more than 1 Eigen value with the variability of 87.60%. So, these six PC were used for further explanation. The first principal component explained maximum variability of the total variation presented. PC1 correlated with days to first flowering, days to 50% flowering and days to first fruiting etc. while PC2 dominated by β- carotene, lycopene, total soluble solid and ascorbic acid. PC 3 correlated with the traits like plant height at final harvest, number of fruits per plant and days to 50% flowering. PC 4 reflected positive factor loading by polar diameter, days taken to first picking and plant height at final harvest. PC 5 correlated with polar diameter, node to first flowering and ascorbic acid with positive factor loading and PC 6 correlated with ascorbic acid, days to 50% flowering, number of fruits per truss, equatorial diameter, pericarp thickness, titratable acidity, β-carotene, average fruit weight, fruit yield per plant. Therefore, the important traits coming jointly from diverse PCs and contributing towards elucidation variability may be kept into consideration during utilization of these traits in breeding programme of tomato.

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Genetic Diversity among Tomato Accessions based on Agro-Morphological Traits

Abstract: It is of great importance to know about the genetic diversity, conservation and classification for further utilization of tomato germplasm resources. Therefore, 40 tomato accessions were evaluated on the basic of agro-morphological traits for genetic diversity in 2014.

Cited by 15 publications

References 18 publications

Selection of tomato (Solanum lycopersicum L.) lines for fresh and processing market through multivariate analysis

Selection of tomato (Solanum lycopersicum L.) lines for fresh and processing market through multivariate analysis

Uncovering the Research Gaps to Alleviate the Negative Impacts of Climate Change on Food Security: A Review

Principal Component Analysis Approach for Comprehensive Screening of Tomato Germplasm for Polyhouse Condition

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