Diversity among maize landraces in North West Himalayan region of India assessed by agro-morphological and quality traits

Kumar, Avinash; Kumari, Jyoti; Rana, Jai Chand; Chaudhary, Dharam Paul; Kumar, Rakesh; Singh, Harjit; Singh, T. P.; Dutta, M

doi:10.5958/0975-6906.2015.00029.2

Cited by 18 publications

(13 citation statements)

References 16 publications

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“…ANOVA revealed significant differences among genotypes for all the traits showing the presence of genetic variability among the genotypes (Table 1). Genetic variability among genotypes of maize was also reported earlier by some workers [20,21,22,23].…”

Section: Resultssupporting

confidence: 79%

Isozyme Pattern and Morpho-agronomical Traits Based Genetic Divergence Studies in Maize (Zea mays L.) Inbreds

Kumari¹,

Singh²,

Sharma³

2019

CJAST

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The present investigation was carried out with an objective to study genetic divergence based on morpho-agronomical traits and isozyme pattern in eight maize inbreds. These inbreds were evaluated in randomized block design with three replication for ten morph-agronomical traits. Horizontal starch gel electrophoresis technique used to study the isozyme polymorphism in different tissues of eight inbreds. Analysis of variance revealed significant differences among the inbreds for all the ten morpho-agronomical traits. Nature and extent of genetic divergence for morpho-agronomical traits was measured using average taxonomic distances as a measure of dissimilarity coefficient. Eight inbreds were clustered into four groups (A, B, C, D) based on dissimilarity coefficient. Cluster B and cluster D showed the highest inter cluster distance (2.2422) and the lowest was observed between clusters B and C (1.0401). Cluster A exhibited the highest intra cluster distance (0.8519). Based on inter cluster distances inbreds present in cluster B and D were found more diverse consisted of inbred CML 186 and CM 600 respectively. Six isozyme systems were used for characterization and divergence studies based on similarity coefficients. Inbreds were classified into six clusters (A, B, C, D, E and F). The lowest (0.5957) similarity coefficient exist between inbreds CM 600 and CML 176 and the highest (0.8132) existed between inbreds CML 186 and CML 144. Cluster analysis in both cases reflected the moderate level of genetic divergence among the inbred lines but result may not be completely similar, but somewhat distinct and complementary in nature. Isozyme patterns was found to effective in revealing the nature of relationship among the inbred lines Therefore, divergence study using one estimate can’t replace the need to evaluate the relationship on the basis of the other which may be to used as parents in hybridization programme.

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Section: Resultssupporting

confidence: 79%

Isozyme Pattern and Morpho-agronomical Traits Based Genetic Divergence Studies in Maize (Zea mays L.) Inbreds

Kumari¹,

Singh²,

Sharma³

2019

CJAST

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“…Ferdoush et al (2017) noticed that correlation co-efficient analysis had positive and significant association with yield plant -1 (g) and other traits such as ear girth (cm), 1000-kernel weight (g), yield plot -1 (g), grain yield (tha -1 ) with dry weight. In the presence of great relationship between two traits, selection in one trait will cause a change in its mean through additive gene influence of selected individuals and simultaneously cause an indirect modify in the mean of the other trait (Kumar et al, 2015). Results show that there are strongly positive correlations between the TP with all traits except SPAD and RD.…”

Section: Correlation Analysismentioning

confidence: 93%

“…According to morphological data, the hierarchical dendrogram differed grouped into 12 clusters (Figure 1), although some maize landraces collected in same area are included in different groups because of their different characteristics. Agronomic and ecological properties impact the genotypic constitution of landraces during domestication, and hence a relation exists between the agro-ecology of the exploration sites and the morpho-physiological make-up of the landraces (Kumar et al, 2015).…”

Section: Cluster Analysismentioning

confidence: 99%

“…At the same time, due to the restriction of genetic diversity in modern varieties, it should be emphasized for maintaining the diverse genetic traits for future plant breeding program. While to protect the diverse genetic resources of local landrace and to benefit the use of next generation, research works should be continuing through screening of local landraces by using with local germplasm; which will be very useful to conserve the genetic variability, improve their uses and will provide economic profits to the farmers (Kumar et al, 2015). Considering the vital issue, the present study was undertaken to evaluate the agromorphologic performance of maize landraces and to find out their potentiality in maize breeding for developing the suitable maize varieties for different agro-ecological conditions.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Turkish Maize Landraces Through Observing Their Yield and Agro-Morphological Traits for Genetic Improvement of New Maize Cultivars

Kızılgeçi

Yıldırım

Albayrak

et al. 2018

Acta fytotechn zootechn

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Licensed under a Creative Commons Attribution 4.0 International License For protection of diverse genetic resources of local landraces and to get the benefit for next generation, research works should be continuing through screening of local landraces by using with local germplasm; which will be very useful to conserve the genetic variability and will provide to economic profits to the farmers by improving their uses. In the context, One hundred twenty-five maize landraces with two commercial maize hybrids ('Kalumet' and 'Katone') were evaluated for yield and agro-morphological performance for genetic improvement of future maize varieties. The landraces were collected from the Black Sea Region of Turkey and were evaluated under the augmented complete design under Diyarbakir agro-ecological conditions during 2015. After observation, it was observed that all genotypes showed significant variations for all traits especially for yield and yield attributes. Considering the overall performance of all landraces, the days to tasseling and silking were varied from 39.5 to 64.5 and from 49.5 to 70.5 days; while the SPAD meter were varied from 37.8 to 70 unit, the plant height from 165 to 315.5 cm, the ear height from 55.8 to 190 cm, the stalk thickness from 11.3-26 mm, the ear length from 6.21 to 25.38, the ear diameter 14.13 to 48.92 mm, the ears per row from 2.33 to16.3, seeds per row, the ear weight from 10.2 to 285.26 g, the rachis diameter from 11.58 to 39.51mm and the grain yield from 63.68 to 1,498.13 kg ha-1. Where, the range for all traits in landraces varied huge and exceeded commercial check genotypes. Therefore, it was determined that the genotypic distinction of the landraces may be used as pre-breeding material for developing the suitable maize varieties for sustainable maize production in diverse agro-ecological conditions of Mediterranean region including Turkey.

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“…From this, a breeding population of about 5.24 billion maize mother plants transmit their variation to the next generation each cycle, which contributes to both preserving rare alleles and to generate new potentially adaptive variations (Bellon et al, 2018). This "evolutionary service" constitutes a public good offered by traditional farmers in Mexico (Bellon et al, 2018) and other regions of the world (Bedoya et al, 2017;Bracco et al, 2009;Carvalho et al, 2004;Hartings et al, 2008;Kumar et al, 2015;Qi-Lun et al, 2008) and to society in general. In Mexico, the genetic diversity of cultivated maize is also constantly broadening through the influx of genes from wild relatives like teosinte, which is tolerated or actively promoted by traditional farmers (Rojas-Barrera et al, 2019;Hufford et al, 2013;Matsuoka et al, 2002;Wilkes, 1977).…”

Section: The Genetic Levelmentioning

confidence: 99%

True Cost Accounting for Food

Baker¹,

Daniels²,

Gemmill-Herren³

2021

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This book explains how True Cost Accounting is an effective tool that we can use to address the pervasive imbalance in our food system.Calls are coming from all quarters that the food system is broken and needs a radical transformation. A system that feeds many yet continues to create both extreme hunger and diet-related diseases, and one that has significant environmental impacts, is not serving the world adequately. This volume argues that True Cost Accounting in our food system can create a framework for a systemic shift. What sounds on the surface like a practice relegated to accountants is ultimately a call for a new lens on the valuation of food and a new relationship with the food that we eat, starting with the reform of a system out of balance. From the true cost of corn, and water, to incentives for soil health, the chapters economically compare conventional and regenerative, more equitable farming practices in food system structures, including taking an unflinching look at the true cost of cheap labour. Overall, this volume points towards the potential for our food system to be more human-centred than profit-centered and one that has a more respectful relationship to the planet. It sets forth a path forward based on True Cost Accounting for food. This path seeks to fix our current food metrics, in policy and in practice, by applying a holistic lens that evaluates the actual costs and benefits of different food systems, and the impacts and dependencies between natural systems, human systems, and agriculture and food systems.This volume is essential reading for professionals and policymakers involved in developing and reforming the food system, as well as students and scholars working on food policy, food systems, and sustainability.

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Diversity among maize landraces in North West Himalayan region of India assessed by agro-morphological and quality traits

Cited by 18 publications

References 16 publications

Isozyme Pattern and Morpho-agronomical Traits Based Genetic Divergence Studies in Maize (Zea mays L.) Inbreds

Isozyme Pattern and Morpho-agronomical Traits Based Genetic Divergence Studies in Maize (Zea mays L.) Inbreds

Evaluation of Turkish Maize Landraces Through Observing Their Yield and Agro-Morphological Traits for Genetic Improvement of New Maize Cultivars

True Cost Accounting for Food

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