Effects of BAP and TIBA on Shoot Proliferation of Rosa hybrida L. cv. Full House in in vitro Culture

Document Type : Research Article

Authors

• Somayeh Hajian ¹
• Sadollah Alizadeh Ajirlo ¹
• Fariborz Zare Nahandi ²

¹ University of Tabriz

² Department of Horticultural Science and Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

https://doi.org/10.22067/jhorts4.v0i0.25304

Abstract

Micropropagation is a proper approach to rapid and large-scale propagation of rootstocks and rose cultivars for huge demand of flower market. Proliferation rate of shoot is decreased drastically following several subcultures. Growth regulators have remarkable effects on the key phase of proliferation in micropropagation of this popular crop. In this research the effects of BAP and antiauxin of TIBA on quality and quantity of developed shoots in Rosa hybrida cv. Full House were studied. BAP and TIBA were applied at three concentrations of 0, 2.2 and 8.8 µmol in proliferation phase of micropropagation. The experiment was conducted based on factorial and completely randomized design with four replications. After two months, the percentage of proliferated explants, survived main and lateral shoot number, length of the main and lateral shoots, number of green leaves on the shoots, the average number of shoots with chlorotic and necrotic leaves, the average axillary shoot base diameter, fresh weight of shoots and number of shoots with necrotic tip were recorded. Analysis of variance indicated that BAP was ineffective on the number of the main shoot green leaves and decreasing number of shoots with necrotic tip, but enhanced other traits. The concentration of 8.8 µmol of BAP had greater effect than 2.2 µmol of this growth regulator on mentioned traits. The higher concentration of TIBA resulted to more shoot with necrotic tip. This antiauxin had anegative impact on shoot fresh weight, but the other parameters were not significantly affected.

Keywords

• rose
• Micropropagation
• BAP
• TIBA

20.1001.1.20084730.1394.29.1.13.1

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