VPLIV DELNEGA NAMAKANJA KORENIN NA SPREMEMBE V KAKOVOSTI SEMENA PERZIJSKE DETELJE (Trifolium resupinatum L.) MED NJEGOVIM RAZVOJEM IN ZORENJEM

Hamdollah Eskandari, Ashraf Alizadeh-Amraie

Povzetek


Za ovrednotenje vpliva omejene preskrbe z vodo v fazi polnjenja semen perzijske detelje na spremembe njihove kakovosti je bil v Aleshtarju, Iran, v rastni sezoni 2015-16 izveden poljski poskus. Poskus je bil 2×6 faktorski poskus s tremi ponovitvami. Obravnavanja so obsegala običajno namakanje (namakan je bil celoten korerninski sistem), delno namakanje (polovica koreninskega sistema je bila namakana, druga je ostala suha) in čas pobiranja semen (začetek 10 dni po cvetenju (DAF) in nato šestkrat v 5-dnevnih intervalih). Odstotek kalitve, suha masa kalic, električna prevodnost vode, v kateri je bilo namočeno vzorčeno seme in masa 1000 semen so bili uporabljeni kot znaki kakovosti semena. Na znake kakovosti semena sta značilno vplivala čas pobiranja semena in način namakanja posevka medtem, ko njuna interakcija ni imela značilnega vpliva. Na maso semen in električno prevodnost načina namakanja nista značilno vplivala, suha masa kalic in odstotek kalitve sta se ob pomanjkanju namakanja zmanjšala. Delno namakanje korenin je zmanjšalo kakovost semena, kar kaže, da potrebuje perzijska detelja za uspešno tvorbo in zorenje kakovostnega semena razmere brez pomanjkanja vode.

Ključne besede


perzijska detelja; deficitarno namakanje; kalitev; tvorba semena

Celotno besedilo:

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Literatura


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DOI: http://dx.doi.org/10.14720/aas.2017.109.2.24

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