Kalit soʻzlar:
- g‘o‘za
- issiqlik stressi
- iqlim o‘zgarishi
- chegaraviy ko‘rsatkichlarga asoslangan tahlil
- fiziologik komfort
- kritik stress balans (CSB) indeksi
- agrometeorologiya
Abstrak
So‘nggi yillarda global iqlim o‘zgarishi natijasida ekstremal yuqori haroratlar takrorlanuvchanligi ortib, g‘o‘za mahsuldorligi va fiziologik jarayonlariga salbiy ta’sir ko‘rsatmoqda. Ushbu tadqiqotda Andijon viloyati Qo‘rg‘ontepa tumanida 2014-2024-yillarga oid har 3 soatlik agrometeorologik ma’lumotlar asosida g‘o‘zaning issiqlik stressi baholandi. Tahlilda 25-32°C haroratlar fiziologik komfort intervali (CH), 35°C dan yuqori haroratlar esa issiqlik stress intervali (HSH) sifatida qabul qilinib, «fiziologik komfort vaqti» hamda kritik stress balans (CSB) indeksi qo‘llanildi. Natijalar iyun-iyul oylarida, ayniqsa kunning 14:00-17:00 soatlarida issiqlik stressining eng yuqori darajaga yetishini, gullash va ko‘sak tugish fazalarida komfort vaqtning qisqarishi hamda kritik stress balans (CSB) indeksining pasayishi esa reproduktiv jarayonlarda yuqori harorat xavfining kuchayishini ko‘rsatdi. Olingan natijalar iqlim o‘zgarishi sharoitida g‘o‘za fiziologik stressini baholash, mahsuldorlikni bashorat qilish va adaptiv agrotexnologik chora-tadbirlarni takomillashtirish uchun muhim ilmiy asos bo‘lib xizmat qildi.
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