Potential of Plant Growth Regulators on Modulating Rooting of <i>Rosa centifolia</i>

• 作者: Ahsan Akram Gulzar Akhtar Hasan Sardar Kaleem Naseem Muhammad Adnan Shahid Rashad Mukhtar Balal Shahid Masood Shah Yasar Sajjad
• 来源期刊: 美国植物学期刊(英文)
• 学科: 医学
• 关键词: Growth Regulator ROSA centifolia AUXINS ROOTING SHOOTING
• 年，卷（期）: 2015,（5）
• 页码范围: 659-665
• 页数: 7页
• 分类号: R73

摘要

Rosa centifolia is grown for its flowers which are used for essential oil extraction. It is vegetatively propagated through its cuttings which are difficult to root. This study was designed to increase the rooting percentage of cuttings by applying plant growth regulators (PGRs) with different levels. In total 31 treatments with different concentrations (450 ppm, 700 ppm and 950 ppm) of indole butyric acid (IBA), indole acetic acid (IAA), naphthalene acetic acid (NAA) alone, in combination and with same concentrations of 6-benzylamino purine (BAP) were used. Healthy similar sized cutting of R. centifolia was treated in solution of PGRs by quick dip method and planted in polythene bags. The data for shoot length, shoot dry weight, number of roots, root length and root dry weight were recorded. All three levels (450 ppm, 700 ppm and 950 ppm) of IBA alone produced maximum results in case of all parameters as compared to all other treatments. Among three levels of IBA, 450 ppm concentration produced maximum shoot length (10.67 cm), shoot dry weight (3.02 g), number of roots (14.00), root length (11.90 cm) and root dry weight (0.50 g). Lower concentrations of plant growth regulators produced better results as compared to higher concentrations.