research-focus Research Focus International Scientific Journal Research Focus 2181-3833 Ilm-fan va innovatsiyalar akademiyasi 10.66073/refocus.v5i8.0804 REL-A-013559 06.00.00 Technology for cultivating Oriental arborvitae (Platycladus orientalis L.) seedlings under the conditions of the southern districts of the Republic of Karakalpakstan Технология выращивания сеянцев туи восточной (Platycladus orientalis L.) в условиях южных районов Республики Каракалпакстан Qoraqalpog‘iston Respublikasi janubiy tumanlari sharoitida Sharq biotasi (Platycladus orientalis L.) ko‘chatlarini yetishtirish texnologiyasi QURBANIYAZOVA Surayyo Karakalpak Institute of Agriculture and Agrotechnologies, Nukus, Republic of Karakalpakstan, Uzbekistan 05 09 2026 2026 5 8 29 32 https://creativecommons.org/licenses/by/4.0 This work is licensed under a Creative Commons Attribution 4.0 International License.

This study investigates the technology of cultivating Platycladus orientalis L. seedlings under the soil and climatic conditions of the southern districts of the Republic of Karakalpakstan. Experimental studies conducted in 2025–2026 examined seed propagation, transplantation of one-year-old seedlings, and green cutting propagation using different substrates. The results demonstrated that seedling growth and propagation efficiency depend on the cultivation method and substrate type. Peat produced favorable results in seed propagation, while peat and sandy-loam soil supported the successful establishment of transplanted seedlings. Green cutting propagation showed relatively lower efficiency. The findings confirm the potential of P. orientalis for nursery production, afforestation, and ecological restoration in southern Karakalpakstan.

В статье исследована технология выращивания Platycladus orientalis L. в почвенно-климатических условиях южных районов Республики Каракалпакстан. Изучены семенное размножение, пересадка однолетних сеянцев и размножение зелёными черенками с использованием различных субстратов. Установлено, что эффективность размножения и рост растений зависят от способа выращивания и типа субстрата. Наиболее благоприятные результаты при семенном размножении получены при использовании торфа, а при пересадке сеянцев — торфа и супесчаной почвы. Результаты подтверждают перспективность использования P. orientalis в питомниковом хозяйстве, лесоразведении и экологическом восстановлении региона.

Mazkur tadqiqotda Janubiy Qoraqalpog‘istonning tuproq-iqlim sharoitida Sharq biotasi (Platycladus orientalis L.) ko‘chatlarini yetishtirish texnologiyasi o‘rganilgan. Tadqiqotda urug‘dan ko‘paytirish, bir yillik ko‘chatlarni ko‘chirib o‘tqazish va yashil qalamchalar orqali ko‘paytirish usullari turli substratlarda sinovdan o‘tkazildi. Natijalar ko‘chatlarning o‘sishi va ko‘paytirish samaradorligi yetishtirish usuli hamda substrat turiga bog‘liqligini ko‘rsatdi. Torf urug‘dan ko‘paytirishda, torf va qumloq tuproq esa ko‘chatlarni ko‘chirib o‘tqazishda yaxshi natija berdi. Olingan natijalar P. orientalis turidan ko‘chatchilik, o‘rmon barpo etish va ekologik tiklash ishlarida foydalanish istiqbollarini tasdiqlaydi.

 Platycladus orientalis L. Oriental arborvitae seedling cultivation propagation substrate Karakalpakstan afforestation ecological restoration Platycladus orientalis L. туя восточная выращивание сеянцев размножение субстрат Каракалпакстан лесоразведение экологическое восстановление Platycladus orientalis L. Sharq biotasi ko‘chat yetishtirish ko‘paytirish substrat Qoraqalpog‘iston o‘rmon barpo etish ekologik tiklash References are numbered in order of first appearance in the text. Give all authors up to six; a DOI must be provided where one exists. Che, C., Zhang, M. Radial growth and drought resistance of Platycladus orientalis along a precipitation gradient // Forests. – 2025. – Vol. 17. – P. 381–393. Du, M., Feng, H., Zhang, L. et al. Effect of nitrogen deposition on soil organic carbon in Platycladus orientalis plantations // Sustainable Forestry. – 2025. – P. 137–150. Li, X., Ye, C., Sheng, M. Effect of arbuscular mycorrhizal fungi on interspecific relationships between Robinia pseudoacacia and Platycladus orientalis // Plant and Soil. – 2025. – Vol. 516. – P. 2277–2291. Ma, X. Changes in soil fungal communities in the rhizosphere of Platycladus orientalis plantations of different ages // Inner Mongolia Agricultural University. – 2025. – P. 11–25. Rojin, A., Haji, M.S., Hasan, M.N. Growth response of Platycladus orientalis L. seedlings to foliar application of GA3 and chelated Nano-NPK fertilizers // Agricultural and Veterinary Sciences. – 2023. – P. 96–113. Sun, M., Zhang, M. et al. Drought adaptation strategies of Platycladus orientalis on the Western Loess Plateau // Research in Cold and Arid Regions. – 2025. – No. 10. – P. 1991–2006.