The effect of naphthalene acetic acid and some rooting media on rooting abilities and shoot growth of Dwarf Nerium cuttings

Abstract

Aim: To evaluate the effect of different rooting media and naphthalene acetic acid on rooting abilities and shoot growth of Nerium oleander .Methodology: Petite Red and Petite Salmon (Dwarf Nerium), the experiment was designed randomly to obtain data from three replicates (ten cuttings per replicate). The cuttings taken during mid February were -1 rooted at different concentrations of NAA (500 and 1000 mg l ) and in growth media (peat, per lite and municipal sewage sludge) for 45 days. The shoot length and number, fresh and dry weight of shoots, rooting ratios, root number and length, fresh and dry weight of roots were measured.-1 Results:The results showed that the best rooting medium was peat and 500 mg l of NAA increased rooting ratio by 60%, no difference was found between other two NAA concentrations. Moreover, in both -1 varieties, peat growth media plus 500 mg l NAA yielded the best results and addition of NAA positively affected shoot fresh and dry weight. Interpretation:On the basis of this study, it can be concluded that peat was found to be the best rooting media and NAA addition in rooting media positively affected plant growth. Moreover, recycled municipal sewage sludge can be used in ornamental plant cultivation.cuttings

Experimental Examination of Vegetative Propagation Methods of Nothofagus antarctica (G. Forst.) Oerst. for Restoration of Fire-Damaged Forest in Torres del Paine National Park, Chile

“…From Table 1, it follows that a growth regulator most frequently used for the rooting of cuttings is IBA. Multiple studies [29,34,48,49], however, have produced results that, like ours, indicate that NAA either alone or in combination with IBA has a better influence on rooting. On the other hand, although the results of our comparisons of IBA at different concentrations showed greater success in rooting cuttings using mid-and higher-IBA concentrations, some other studies have shown lower concentrations to be more favorable [32,33,44].…”

“…There are many methods of vegetative propagation of woody plants [22,27], including by means of rooted cuttings, which is affected by multiple factors [28]. This approach has continued to develop and is used particularly in growing cultivars of fruit and ornamental woody plants [29][30][31][32][33][34]. In forestry, it is important to maintain the uniformity of genetically significant characteristics, especially in establishing plantations of fast-growing woody species [24,28,35,36].…”

“…Harley & J.F.B.Pastore, found the cuttings to survive best in a mixture that included the organic material humus (along with the commercial substrate Biomix and vermiculite), and like Acuña [21], had directly dipped the cutting bases in fungicide. Akat et al [34] found peat to be a better substrate than perlite for rooting cuttings of two Nerium oleander L. cultivars right before; however, their methodology does not mention the use of fungicide.…”

“…Stevens and Pijut [36] IBA potassium salt (K-IBA) and (IBA) Juglans nigra highest De Carvalho Silva et al [44] 5 concentrations of IBA Eplingiella fruticosa 1.5 g•L −1 . Filho et al [51] indole-3-butyric acid (IBA) Khaya anthotheca 2.0 g•L −1 Kanmegne et al [43] indole-3-butyric acid (IBA) Cola anomala 5 a 10 g•L −1 Véras et al [33] indole-3-butyric acid (IBA) Spondias mombin 3.0 g•L −1 Chater et al [32] indole-3-butyric acid (IBA) Punica granatum 3.0 g•L −1 Akat et al [34] naphthaleneacetic acid (NAA) Nerium olenader 0.5 g•L −1 Justamante et al [48] IBA + NAA Argania spinosa 1 + 2 mg•L −1 Yusnita et al [29] IBA + NAA Syzygium malaccense 1 + 1 g•L −1 Yusnita et al [29] NAA Syzygium malaccense 2-4 g•L −1 Kaviani and Negahdar [49] IBA + NAA Buxus hyrcana -Cristofori et al [30] IBA + putrescine Corylus avellana 1 + 1.6 g•L −1 Rugini et al [52] IBA + putrescine Olea europaea 2 + 1.6 g•L −1 Gergoff Grozeff et al [31] sodium nitroprusside (SNP) + IBA Prunus insititia × P. domestica…”

Vegetative Propagation of Hoya imperialis and Hoya coronaria by Stem Cutting and Micropropagation

“…Similarly, the exogenous application of NAA for high root formation was also reported in stem cuttings of Vinca minor ( Zongqin & Jinxiang 1995 ), Mondia whitei ( Zobolo et al . 2009 ), Nerium oleander ( Akat et al . 2017 ) and Nerium odorum ( Kumar et al .…”