Influence of NAA and coconut water with variation of soaking duration on the growth of yellow bamboo branch cutting

Abstract

Setiawati T, Keliat APR, Budiono R, Partasasmita R, Iskandar J. 2018. Influence of NAA and coconut water with variation of soaking duration on the growth of yellow bamboo branch cutting. Nusantara Bioscience 10: 178-182. Yellow bamboo (Bambusa vulgaris Schrad Ex. var. Striata) is one kind of bamboo used for industrial and household raw materials. Yellow bamboo propagation with branch cuttings has relatively low percentage of growth. To increase the growing success of yellow bamboo branch cuttings can be used growth regulators substance, such as NAA and coconut water. This study aimed to obtain the best combination of NAA and coconut water with the soaking duration in the growth of yellow bamboo branch cuttings. The study was conducted using Completely Randomized Design (CRD) of 6 × 3 factorial arrangement with five replications. The first factor was the combination of NAA and coconut water (CW), which consisted of six levels, namely 100% CW, 20% NAA + 80% CW, 40% NAA + 60% CW, 60% NAA + 40% CW, 80% NAA + 20% CW and 100% NAA. The second factor was the soaking duration which consists of three levels, namely 12 h, 24 h, and 36 h. Parameters observed included shoot emerging time, shoot number, shoot length, leaf area, root number and root length. The data obtained were analyzed using the Analysis of Variance (ANOVA) and Duncan's Multiple Range Test (DMRT) α=5%. The results showed that the combination of 80% NAA + 20% CW gave the best yellow bamboo branch cuttings growth with an average shoot length of 1.44 cm, leaf area 41.29 cm2, root number 42.87 and root length 23.70 cm. The interaction of 80% NAA + 20% CW with soaking duration of 36 h resulted in average the fastest shoot emerging time of 2.02 days after planting.

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

“…The increment in rooting percentages reached 310.4% for IBA + coconut water for 1 hour and 263.2% for IBA + seaweed extract as drench over the control as average of both seasons. These results are in harmony with the findings of Sarmast et al (2012), Pacholczak et al (2012) and Setiawati et al (2018), who reported that rooting cuttings treated with either A. rhizogenes, seaweed extract or coconut water can be further improved by synthetic auxin application, which accelerated and increased adventitious root formation in comparison with the treatment without synthetic auxin. Therefore, the exogenous supply of IBA might augment the natural auxin produced as a result of the biostimulants application (Liu et al, 2002).…”

Macropropagation Techniques in Bamboos: A Review

“…As regards to rooting hormones the rooting behaviour was in the order: Control>IBA500 ppm>IBA200 ppm>IBA100 ppm>IAA100 ppm>IAA500 ppm>IAA200 ppm>NAA100 ppm>NAA200 ppm>NAA500 ppm. W hen branch cuttings of B. vulgaris treated with different mixtures of NAA (500 ppm) and coconut water with various soaking duration, good growth in terms of leaf area, root and shoot length and number of roots reported for combination of 20% coconut water and 80% NAA, which is highest interaction effect with 36 hrs of soaking durations for earliest shoot emergence time of 2.02 days after planting (Setiawati et al, 2018). Primary and secondary branch cuttings of D. asper developed shoots, roots and rhizome even without any hormone treatment but application of IBA substantially increases survival %, rooting ability and shoot number (Hossain et al, 2018).…”

Ex-situ conservation of Cymbidium finlaysonianum by seed storage

“…This is because the modified VW medium added growth hormone auxin (NAA) 10 ppm, which in its function to stimulate rooting. The addition of auxin (NAA) in the media will encourage the formation of adventitious roots (Setiawati et al 2018).…”