Effect of Some Natural Products As an Alternative Chemical Growth Regulators on Rooting Response‚ Growth and Chemical Composition of Rosemary Cutting

Abstract

This study was conducted at the Experimental Station and Laboratory of Vegetable and Floriculture Department, Fac. of Agric., Mansoura Univ., Egypt, during 2015/2017 seasons to investigate the effect of some natural products and some alternative chemical growth regulators on rooting response‚ growth and chemical composition of cuttings of rosemary (Rosmarinus officinalis L.) plants. The layout of the experiment was completely randomized block design (CRBD) with three replications. The obtained results could be summarized as the following: It is worthy to mention that the highest values of all studied vegetative growth characters and chemical constituents of rosemary were resulted from treating terminal cuttings with coconut milk at the highest rate (75%) in both seasons. With exception, fresh weight of shoots, which, obtained when treating terminal cuttings with seaweed extract at the rate of 50 % and total phenols percentage, which obtained from control treatment (treating cuttings with water only) in both seasons. Using natural products such as coconut milk, seaweed extraction, yeast extract and honey bee were better than using chemical growth regulators like Indole butyric acid (IBA) in both seasons. It can be concluded that treating terminal cuttings of rosemary (Rosmarinus officinalis L.) with coconut milk at the rate of 75 % as natural growth regulator in order to enhance rooting‚ vegetative growth and chemical constituents.

Improving Rooting and Growth of Conocarpus Erectus Stem Cuttings Using Indole-3-Butyric Acid (Iba) and Some Biostimulants

“…Overall, the individual treatments of seaweed extract and coconut water were more effective in increasing the rooting percentage than IBA or A. rhizogenes alone. These findings are in agreement with those reported by Kasem and Abd El-Baset(2014), Pacholczak et al (2016), Massoud et al (2017), Sarmast et al (2019), Ibironke (2019) and Dada et al (2019), who revealed that treating cuttings with biostimulants enhanced the rooting percentage compared to untreated or IBAtreated cuttings. On the other hand, application of seaweed extract as drench surpassed those of seaweed extract treatments as spray.…”

“…On the contrary, the minimum rooting percentage was recorded with untreated basal cuttings (2.5%). These results are in parallel to those obtained by Mohamed et al (2014) and Massoud et al (2017), showed that treating tip cuttings with IBA and/or biostimulants led to increase rooting percentage comparing with the untreated cuttings for Conocarpus erectus and Rosmarinus officinalis, respectively.…”

“…The best combination of IBA + coconut water for 1 hour with tip cuttings which recorded the highest rooting percentage (93.8%) was associated with the marked improvement in root measurements which positively reflected on better vegetative characteristics of rooted cuttings than the other combinations given lower results. Similar results were obtained by Mohamed et al (2014), Massoud et al (2017) and Tilahun et al (2019), who found that the root and shoot measurements were improved by treating tip cuttings with IBA and/or biostimulants compared to untreated cuttings. The increment in root and shoot characteristics may be associated with the balance between endogenous levels of hormones and food materials in cutting tissues (Wróblewska, 2015).…”

The Natural Alternatives: The Impact of Plant Extracts on Snowbush (Breynia disticha Forst.) Cuttings’ Morpho-Physiological and Biochemical Characteristics

“…These results align with those of [41] on Zanthoxylum aramatum, who reported that the control set of branch cuttings had not produced any roots. Also, tip cuttings treated with IBA increased the rooting percentage compared with the untreated cuttings for Conocarpus erectus and Rosmarinus officinalis, respectively [42][43][44].…”

Growth of leaf cutting of malay apple (Syzygium malaccense (L.) Merr & Perry) with coconut water treatmen

“…Media tanam yang digunakan adalah tanah hitam dan arang sekam padi dengan perbandingan 1:1 (Suryanto et al 2012). Stek yang sudah disiapkan direndam selama 2 jam (Massoud et al 2017) Berdasarkan pengamatan terhadap munculnya akar dan tunas menunjukkan persentase pembentukan akar dan tunas 0% untuk semua perlakuan pada stek daun jambu bol. Hasil ini menunjukkan bahwa perlakuan air kelapa belum mampu memacu pembentukan akar dan tunas sampai 50 hst.…”