Performance Evaluation and Genetic Parameters Estimation of Multi-Companies Maize Hybrids in Lamahi Dang, Nepal

Shrestha, Suraj; Niraula, Dikshya; Regmi, Sudikshya; Basnet, Saugat; Chhetri, S.; Kandel, Bishnu Prasad

doi:10.2139/ssrn.4307089

Cited by 2 publications

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“…A statistical measure used to quantify how closely two variables are associated with each other is the correlation coefficient. This provides information on the degree of relationship as well as the degree to which traits are interdependent (Shrestha et al 2023).…”

Section: Introductionmentioning

confidence: 99%

“…Through correlation studies, which can be phenotypic, genotypic, or environmental in nature, the breeder can discover the important correlations between morphological traits and combine them with the analysis of the underlying genetic variables (Roy et al 2018;Wang et al 2020). According to Shrestha et al (2023), the correlation coefficient helps identify the magnitude of the relationship. In selection, the values of the coefficient of correlation between traits are crucial.…”

Section: Introductionmentioning

confidence: 99%

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RETRACTED: Variability among maize (Zea mays L.) inbred lines for agro- morphological traits

Shrestha,

Ghimire,

Dhakal

et al. 2023

Preprint

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Variability analysis of maize inbred lines enables increased genetic gain in the maize breeding program. During spring to summer season (March to July) of 2022, we conducted a field experiment in Rampur, Chitwan, Nepal, where we evaluated 24 inbred lines of maize in α-lattice design with three replications to study genetic variability for growth and yield traits. The results of this study showed that growth and yield traits were subject to significant phenotypic and genotypic variation. The anthesis-silking interval (ASI) had the highest genotypic coefficient of variation (39.28%) and phenotypic coefficient of variation (42.81%) in comparison to other traits. Thousand-kernel weight was found to have 87% broad-sense heritability, while as ASI had 91% broad-sense heritability. The grain yield had the highest genetic advance (GA) value, which was followed by leaf area (86.21%). Four inbred line clusters were made using the Euclidean Average Linkage technique. The maximum distance (722.37) between cluster centroids in the cluster analysis suggests that clusters 2 and 4 had the greatest genetic dissimilarity. Inbred RML-76 (2262.2 kg ha-1) and RML-17 (2069.94 kg ha-1) produced the highest grain yields, respectively. The correlation analysis between grain yield and the number of kernel rows per ear (r = 0.79**), the number of kernels per kernel row (r = 0.79**), the length of the ear (r = 0.77**), and the thousand grain weight (r = 0.76**) was positive and significant.The results of our study suggested that maize productivity can be increased by utilizing genetic variability and indirect selection for traits with a high correlation to grain yield, high heritability, and high GA.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

RETRACTED: Variability among maize (Zea mays L.) inbred lines for agro- morphological traits

Shrestha,

Ghimire,

Dhakal

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The evaluation and variability of quality protein maize resulted that Rampur-S13FQ-02, Rampur-S03FQ-02, Rampur-S13FQ010 and Rampur S13FQ-08 yielded 4. 32,3.97,3.89, 3.63 Gyawali et al, 2020;Acharya and Parajuli, 2020;Shrestha et al, 2021;Niraula et al, 2021 Wheat-Zero tillage showed significantly higher yield than conventional tillage.…”

Section: Timilsena 2018;mentioning

confidence: 99%

Ways for the Prosperity of Farmers in Western Hills and Terai, Nepal

Amgain,

Dawadi,

Adhikari

et al. 2023

J. Tikapur Mult. Campus

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The Institute of Agriculture and Animal Science (IAAS) under Tribhuvan University (TU) has launched the internship programme me for their final semester students studying under-graduate level since 2014/15 in its all constituent and affiliated campuses. About 106 UPA mini-theses accomplished by 221 B.Sc. Ag. graduates from the Prithu Technical College (PTC) libraries were systematically arranged and categorized in chronological order based on the disciplinary subjects and thematic areas, and the technologies have been recommended to scale-out for the prosperity of the farmers in the western Tertian mid-hill agro-ecology of Lumbini and adjoining provinces in Nepal. The review revealed that the researches at PTC were concentrated majorly on major food grain crops with five major themes viz. varietal evaluation, crop management, soil nutrient, weed and insect pest management. The review further revealed that the adequate number of researches were in the vegetable crops specially in production packages and value-chain analysis followed by the control of insect pests and diseases both in on-farm and storage structures, suggesting to follow the integrated pest management (IPM) approach. Varietal testing in major field and vegetable crops, and economic survey of chamomile, marigold, honeybees, broiler chicken, cardamom and ginger and oyster mushroom cultivation practices are the newly defined arena to be adopted for harnessing the prosperity of the farmers of the western hills and Terai region in Nepal and its adjoining congenial agro-climatic environment. Future collaboration with the various agriculture related national and international organizations as adopted by PTC on these recent years has to be continued and strengthened further to extrapolate the UPA research innovations obtained from the graduate student’s mini-thesis works.

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Performance Evaluation and Genetic Parameters Estimation of Multi-Companies Maize Hybrids in Lamahi Dang, Nepal

Cited by 2 publications

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RETRACTED: Variability among maize (Zea mays L.) inbred lines for agro- morphological traits

RETRACTED: Variability among maize (Zea mays L.) inbred lines for agro- morphological traits

Ways for the Prosperity of Farmers in Western Hills and Terai, Nepal

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