Anatomiskās un fizioloģiskās izmaiņas mūžzaļo rododendru potējumos saaugšanas laikā

6533b7d4fe1ef96bd1262ca2

RESEARCH PRODUCT

Anatomiskās un fizioloģiskās izmaiņas mūžzaļo rododendru potējumos saaugšanas laikā

Lāsma Krastiņa

subject

description

Rododendrus kā dekoratīvos augus Latvijā plaši izmanto visa veida apstādījumos. Pieaugot pieprasījumam un piedāvāto šķirņu klāstam, ir nepieciešams pilnveidot to pavairošanas metodes, kas nodrošinātu arī grūti apsakņojamu šķirņu ātru un efektīvu pavairošanu. Darba mērķis bija noskaidrot anatomiskās un fizioloģiskās atšķirības klasiskajiem potējumiem un spraudeņpotējumiem potējumu saaugšanas laikā. Klasiskie potējumi saaug ātrāk nekā spraudeņpotējumi. Spraudeņpotējumu attīstībai ir raksturīgs pakāpeniskums – vispirms sākas potējumu saaugšana un tikai tad norit rizoģenēze. Mūžzaļo rododendru klasiskajiem potējumiem saaugšanas laikā raksturīgas lielākas cietes rezerves nekā spraudeņpotējumiem. Potējumu vietās ciete uzkrājas koksnes staru parenhīmas šūnās un serdes parenhīmas šūnās. Cietes daudzuma izmaiņas potējumos to saaugšanas vietās var izmantot kā potējumu saaugšanas anatomisko etapu marķieri, attiecinot to tikai uz klasisko potējumu potzariem.

year	journal	country	edition	language
2013-01-01

https://dspace.lu.lv/dspace/handle/7/26884

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