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Estimation of some genetic parameters in potato (Solanum tuberosum L.) under effect of gamma rays | ||
| Rafidain Journal of Science | ||
| Articles in Press, Accepted Manuscript, Available Online from 02 August 2025 | ||
| Document Type: Research Paper | ||
| DOI: 10.33899/rjs.2025.159211.1448 | ||
| Author | ||
| Laith Ahmed Najam* | ||
| Physics Dept., College of Science, Mosul University, Mosul, IRAQ | ||
| Abstract | ||
| The study was conducted under the conditions of Nineveh Governorate - Iraq on the nature of inheritance of some growth and yield traits of five imported potato varieties of E class (Arizona, Fajah, Paradiso, Riviera and Vogue) under the effect of the treatment period with Gamma Rays, which are four treatments (no treatment, treatment for 30 minutes, treatment for 45 minutes and treatment for 60 minutes). During the spring growing season of 2024/2025 in the Agricultural Research Field / College of Agriculture and Forestry / Tourist Forest Area / Mosul City as a factorial experiment with twenty treatments according to a complete randomized block design and three replicates. The results of the analysis of variance indicate that the mean squares of the five cultivar compositions were significant for all the traits under study except for the percentage of carbohydrates in tubers. Meanwhile, the mean squares of the irradiation coefficients were significant for the traits number of marketable tubers per plant, average marketable tuber weight, marketable yield per plant, and marketable tuber yield The percentage of dry matter and starch in tubers. The values of genetic and environmental variance were significant above zero for all the studied traits. The values of genetic variance were higher than the values of environmental variance for the traits of plant height, chlorophyll content in leaves, number of marketable tubers per plant, marketable yield per plant, marketable tuber yield, and percentage of phosphorus and potassium in tubers, and lower than that for the other traits | ||
| Keywords | ||
| potato; genetic improvement; variation and heritability; gamma rays | ||
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