Effects of various nitrogen sources on synchronization of tomato somatic embryogenesis during induction and realization phases
Publish place: Journal of Plant Physiology and Breeding، Vol: 8، Issue: 2
Publish Year: 1397
نوع سند: مقاله ژورنالی
زبان: English
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JR_BREDNG-8-2_005
تاریخ نمایه سازی: 24 بهمن 1401
Abstract:
Tissue culture through somatic embryogenesis is one of the methods found most useful in the plants’ breeding process. A key issue to deal with during somatic evolution is its synchronization. Nitrogen has been known to play an important role here. Therefore, we evaluated the tomato explant embryogenesis cultured on B۵ basal medium, subject to oxidized, reduced and organic nitrogen. Two separate experiments were conducted consisting of eight treatments with four replications each, using completely randomized design. In the experiment in which treatments were applied during the induction phase, maximum synchrony, based on relative number of torpedo embryo to all formed embryos, was obtained using nitrate as the sole nitrogen source (۰.۸۱). However, in the case in which treatments were applied during the realization phase, maximum synchrony was obtained through the combined nitrate and casein hydrolysate (۰.۵۱). Furthermore, in both experiments the highest number of somatic embryos was obtained in the standard B۵ medium (۹۱.۵۸ in the first experiment and ۵۹.۱۹ in the second experiment).
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Authors
Aida Shomali
Department of Horticultural Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
Kambiz Mashayekhi
Department of Horticultural Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
Mohammadhadi Pahlevani
Department of Agronomy, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
Seyyed Javad Mousavizadeh
Department of Horticultural Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
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