EVALUATION OF THE PHENOLOGICAL DEVELOPMENT OF POTATO (SOLANUM TUBEROSUM L.) VARIETIES AND BREEDING LINES UNDER THE PRIMARY SEED PRODUCTION SYSTEM IN YANGIQO‘RG‘ON DISTRICT CONDITIONS
Keywords:
Keywords: potato, phenology, breeding, seed production, vegetation period, earliness, flowering, physiological maturity.Abstract
Abstract
This study evaluated the phenological development of potato (Solanum
tuberosum L.) varieties Arizona, O‘zbekiston Qizili, Aqrar, Liliya, and Venger Rozsa,
together with the breeding lines MIKS, N-1, and N-2, under the agroecological
conditions of Yangiqo‘rg‘on District, Namangan Region, Uzbekistan. The research
was conducted in 2026 at the Namangan Experimental Station of the Research Institute
of Vegetable, Melon Crops and Potato within the framework of the potato breeding
and seed production program. Phenological observations included the onset and
duration of emergence, budding, flowering, tuber initiation, and physiological
maturity. The results revealed considerable variation among the tested varieties and
breeding lines in their rates of phenological development. The variety O‘zbekiston
Qizili and breeding line N-1 exhibited relatively short growing periods, whereas Aqrar
and the MIKS breeding line were characterized by comparatively longer vegetation
periods. The findings provide valuable scientific evidence for the selection of
promising potato varieties and breeding lines, the development of regionally adapted
seed materials, and the improvement of the primary seed production system under local
environmental conditions.
References
FOYDALANILGAN ADABIYOTLAR
1. Sabzavot, poliz ekinlari va kartoshkachilik ilmiy-tadqiqot instituti. Kartoshka
seleksiyasi va urug‘chiligi bo‘yicha uslubiy qo‘llanma. Toshkent, 2021.
2. Sabzavot, poliz ekinlari va kartoshkachilik ilmiy-tadqiqot instituti. Kartoshka
navlarini sinash va fenologik kuzatuvlarni olib borish metodikasi. Toshkent, 2022.
3. Kacheyo O.C., van Dijk L.C.M., de Vries M.E., Struik P.C. Augmented
descriptions of growth and development stages of potato (Solanum tuberosum L.)
grown from different types of planting material. Annals of Applied Biology. 2021. Vol.
178(3). P. 549–566. DOI: 10.1111/aab.12661.
4. Naz S., Ahmad S., Abbas G. et al. Modeling the impact of climate warming
on potato phenology. European Journal of Agronomy. 2022. Vol. 132. Article 126404.
DOI: 10.1016/j.eja.2021.126404.
5. Kondhare K.R., Kumar A., Patil N.S. et al. Development of aerial and
belowground tubers in potato is governed by photoperiod and epigenetic mechanism.
Plant Physiology. 2021. Vol. 187(3). P. 1071–1086. DOI: 10.1093/plphys/kiab409.
6. Devaux A., Goffart J.P., Kromann P. et al. The Potato of the Future:
Opportunities and Challenges in Sustainable Agri-food Systems. Potato Research.
2021. Vol. 64(4). P. 681–720. DOI: 10.1007/s11540-021-09501-4.
7. Rozentsvet O.A., Bogdanova E.S., Nesterov V.N. et al. Productivity and
Dynamics of Morphological, Physiological, and Biochemical Parameters of Potatoes
in Arid Climate. Doklady Biological Sciences. 2021. Vol. 497. P. 65–68. DOI:
10.1134/S0012496621020095.
8. Yusufoğlu İ., Akıncı S., Hajhamed A. Morphological and Phenological
Characterization of Some Potato Cultivars in Turkey. Journal of Agricultural,
Environmental and Veterinary Sciences. 2021. DOI: 10.26389/AJSRP.E160121.
