Zulhakim, Syafiq (2023) Pengaruh Pemberian Mikoriza Dan Pupuk Grand-k Terhadap Pertumbuhan Serta Hasil Tanaman Bawang Merah (allium Ascalonicum L.) Pada Tanah Pozsolik Merah Kuning. Other thesis, Universitas Islam Riau.

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Abstract

The research entitled "Multiplication of Dendrobium sp Orchid by In-Vitro Administration of ZPT Zeatin and IAA (Indole Acetic Acid)" was carried out at the Biotechnology Laboratory of the Faculty of Agriculture, Islamic University of Riau, Pekanbaru City. The research was conducted for three months, starting from December 2022 to February 2023. The aim of this study was to obtain a combination of Zeatin and IAA (Indole Acetic Acid) concentrations that had the best effect on the growth of Dendrobium orchid explants in tissue culture. The design used in this study was a factorial experiment in a completely randomized design (CRD) consisting of two factors and three replications. The first factor is Zeatin (Z) with concentrations of 0, 2.0, 4.0 and 6.0 ppm. While the second factor is IAA with a concentration of 0, 0.5, 1 and 1.5 ppm. Parameters observed were percentage of explant survival (%), age of shoots (days), age of roots (days), number of shoots (fruits), number of roots (fruits), shoot length (cm) and root length (cm). The last observational data were analyzed statistically and continued with the BNJ follow-up test at the 5% level. The results showed that the interaction of Zeatin and IAA had a significant effect on shoot age, root age, number of shoots, number of roots, shoot length and root length, but the explant survival percentage had no significant effect. The single application of Zeatin and IAA had significantly different effects on shoot age, root age, number of shoots, number of roots, shoot length and root length with the best concentrations of Zeatin 6 ppm and IAA 1 ppm, but had no effect on the percentage of explant survival.

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