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Variability Assessment of New Developed Lines of Chia (Salvia hispanica L.) | ||
| International Journal of Horticultural Science and Technology | ||
| دوره 13، شماره 4، دی 2026، صفحه 803-820 اصل مقاله (587.41 K) | ||
| نوع مقاله: Research paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijhst.2025.390454.1030 | ||
| نویسندگان | ||
| Mona Ahmed Taha* 1؛ mohamed fouad mohamed2؛ Adel M. mohamed Mahmoud3؛ azza Tawfik1 | ||
| 1Floriculture Department, Faculty of Agriculture, Assiut University, Assiut, Egypt. | ||
| 2Department of Vegetables, Faculty of Agriculture, Assiut University, Egypt. | ||
| 3Agronomy Department, Faculty of Agriculture, Assiut University, Assiut, Egypt. | ||
| چکیده | ||
| Three populations of chia (Salvia hispanica) were used. They were obtained from different sources. No realistic differences were detected among these populations; therefore, only one chia population was chosen for the current breeding assessment. Due to the wide range of plant heights observed, this variable was used as a classification factor among the germplasm. It is easy to be distinguish visually and is usually used as a monitor to seed yield. The plant height was categorized tall population (90-110 cm), medium (70-89 cm) and short (50-69 cm). Because chia is self-pollinated and fertilized crop, it was assumed to be a composite of pure lines. Progeny test results confirmed the genetic purity status (homozygosity) of the selected plants within population of different plant height categories. Narrow sense heritability estimated by parent-offspring regression ranged from 0.26 (spike length) to 0.97 (plant height). Consequently, the expected selection response values were high for the most studied traits. All traits exhibited strong genotypic associations and were associated with unity (1.00) in some cases with seed weight per plants. This was reflected well in the parameters of the correlated response and relative efficiency of indirect selection. Selection for seed weight affected all other traits with varying degrees of correlated response. breeding chia lines were derived following tandem multi-traits selection. Two of these lines (1 and 7) seemed to hold a promise for improving chia. These lines may directly be utilized in production of chia after testing their stability or as parental genetic material in cross breeding. | ||
| کلیدواژهها | ||
| Chia؛ Directional selection؛ Indirect selection؛ Negative selection-derived bulk-line؛ Progeny test | ||
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آمار تعداد مشاهده مقاله: 124 تعداد دریافت فایل اصل مقاله: 159 |
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