Keywords
Abstract
Ushbu tezisda qurg‘oqchil va yarim qurg‘oqchil hududlarning tabiiy-iqlim sharoitlariga moslashgan istiqbolli o‘simlik turlaridan biri — izen (Kochia prostrata (L.) Schrad.; ayrim zamonaviy taksonomik manbalarda Bassia prostrata (L.) A.J.Scott sifatida ham keltiriladi)ning bioekologik xususiyatlari va o‘rganilganlik darajasi tahlil qilindi. Ilmiy adabiyotlar asosida turning morfologik va biologik xususiyatlari, ildiz tizimining rivojlanishi, qurg‘oqchilik va sho‘rlanish kabi stress omillariga moslanishi, fiziologik-biokimyoviy javob reaksiyalari, yem-xashaklik qiymati hamda degradatsiyaga uchragan yaylovlarni tiklashdagi ahamiyati umumlashtirildi. Adabiyotlar tahlili izenning qurg‘oqchil ekotizimlarda yuqori ekologik moslashuvchanlikka ega ekanligini ko‘rsatadi. Shu bilan birga, turning turli tuproq-iqlim sharoitlarida o‘sishi va rivojlanishi, mahalliy sharoitlarda biologik xususiyatlarining namoyon bo‘lishi hamda yetishtirish agrotexnologiyasini hududiy sharoitga moslashtirish masalalarini yanada chuqur o‘rganish zarurligi aniqlandi.
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