scholarly journals In vitro propagation of popular banana cultivar (Musa spp. Cv. Patakpura)

2020 ◽  
Vol 44 (4) ◽  
pp. 641-648
Author(s):  
Bandita Deo ◽  
Bikram Keshari ◽  
Bikram Pradhan

The present experiment was conducted to optimize protocols for in vitro propagation of banana (Musa sp.) cv. ‘Patakpura’ (AAB), supplemented with different growth regulators. Shoot tips obtained from sword suckers were cultured aseptically on MS medium supplemented with different concentrations of cytokinins like 6-Benzylaminopurine (BAP) and Kinetin (KN) for multiplication of shootsand auxins such as indole acetic acid (IAA) and naphthalene acetic acid (NAA) for induction of roots. The best result from the initial culture was obtained from MS medium supplimented with 4 mg/l BAP + 0.5 mg/l IAA. The highest shoot fresh weight, shoot length and number of shoots per explant were recorded from MS medium supplemented with 4 mg/l BAP + 0.5 mg/l IAA + 0.25 mg/l NAA. Therefore, the MS medium supplemented with 4 mg/l BAP + 0.5 mg/l IAA + 0.25 mg/l NAA was found to be most effective and productive combination for shoot multiplication and proliferation of the culture in vitro. IAA at a concentration of 1 mg/l was found to be most suitable for rooting of the shoots. Bangladesh J. Agril. Res. 44(4): 641-648, December 2019

2007 ◽  
Vol 1 (1) ◽  
pp. 52-60
Author(s):  
Kadhum Muhammed Ibrahem ◽  
Hamza Musa Kadhum ◽  
Ali Abadi Manea

Seeds of four tomato hybrids Ginan, Nirtia, Speedy and Rola were cultured on aseptic germination medium after surface sterilization with NaOCl. Shoot tips 1cm length were dissected and grown on MS medium supplemented with Benzyl adenine (BA) and Indole acetic acid (IAA) for multiplication. Callus was induced on hypocotyls cultured on MS medium supplemented with BA under light intensity of 1000 lux and 25 0C. Results showed that NaOCl at 4% completely disinfected seeds and resulted in pathogen free seedlings. Results also showed that a concentration of 4 mg/l of BA was superior in increasing callus fresh and dry weights. Shoot multiplication was achieved on the same medium supplemented with 2 and 0.8 mg/l of BA and IAA respectively.


2018 ◽  
Vol 16 (1) ◽  
pp. 27-30
Author(s):  
Farhana Hoque ◽  
Mahbub Robbani ◽  
Md Fakhrul Hasan ◽  
Jahanara Parvin

An experiment was conducted at the Plant Biotechnology Laboratory, Department of Horticulture, Patuakhali Science and Technology University during the period from August 2016 to April 2017 to standardize the protocol for in vitro propagation of banana. The experiment was laid out in completely randomized design with four replications. Three to four months aged field grown rhizome attached shoots were used as explants and cultured on MS medium with different concentrations and combinations of BAP (6-benzylamino purine), BAP + KIN (Kinetin) + NAA (Naphthalene Acetic Acid) and IBA (Indole-3- Butyric Acid) + IAA (Indole-3- Acetic Acid) to observe their efficacy on single shoot initiation, shoot multiplication and root formation respectively. Minimum number of days required for shoot initiation (9.07) with highest shoot initiation percentage (91.14) and the longest shoot (2.23 cm) was found in MS medium supplemented with 5.0 mg/L BAP. On the other hand, highest shoot multiplication percentage (80.99) with maximum number of shoots per explant (4.47), the highest length of shoots (4.17 cm) and maximum number of leaves (4.04)was observed in MS medium supplemented with 4.0 mg/L BAP + 2.0 mg/L KIN + 2.0 mg/L NAA. In case of root regeneration, the best results on days required for root initiation (9.00), the highest root initiation percentage (85.05), maximum number of roots per plantlet (5.83) and the highest length of roots (4.17 cm) was obtained in MS medium supplemented with1.5 mg/L IBA + 0.5 mg/L IAA. After 5-7 days of hardening in room temperature, established plantlets were ready for plantingJ. Bangladesh Agril. Univ. 16(1): 27-30, April 2018


2020 ◽  
Author(s):  
Nurşen Çördük ◽  
Cüneyt Aki

Digitalis trojana Ivanina is a member of the Plantaginaceae family and known by its common name, Helen of Troy foxglove. It is perennial endemic to Çanakkale and Balıkesir, northwestern Turkey. In order to develop an efficient shoot regeneration protocol, the leaf explants of D. trojana were cultured on Murashige and Skoog (MS) medium containing 6-benzyl adenine (0.1, 0.5, 1.0, 3.0, 5.0 mg/L) and α-naphthalene acetic acid (0.1, 0.5, 1.0 mg/L), 3% (w/v) sucrose and 0.8% (w/v) agar. The highest number of regenerated shoots was obtained from leaf explants that were cultured on MS medium with 3.0 mg/L BA+0.1 mg/L NAA. Regenerated shoots were rooted on MS medium without plant growth regulators. Rooted plants (2–3 cm) were separately transferred to pots containing a mixture of peat and perlite (2:1 v/v) and acclimatized successfully in a growth chamber.


Biologia ◽  
2014 ◽  
Vol 69 (5) ◽  
Author(s):  
Ziba Bakhtiar ◽  
Mohammad Mirjalili ◽  
Ali Sonboli ◽  
Mahdi Farimani ◽  
Mahdi Ayyari

AbstractThymus persicus (Ronniger ex Rech. f.) Jalas is a valuable and endangered natural source of antitumor pentacyclic triterpenoids, i.e., betulinic acid, oleanolic acid and ursolic acid, which grows in northwest Iran. As the plant has a low propagation rate in nature, a suitable method for in vitro-propagation is needed. With the aim of identifying a suitable system for regenerating T. persicus via direct organogenesis, Murashige & Skoog (MS) medium supplemented with different plant growth regulators (PGRs) was tested. In vitro-grown shoot tips were exposed to the cytokinins 6-benzylaminopurine (BAP), kinetin (KN), and thidiazuron (TDZ), alone or in combination with the auxins 1-naphthalene-acetic acid (NAA), 2,4-dichlorophenoxyacetic (2,4-D), indole-3-butyric acid (IBA) and indole-3-acetic acid (IAA). The highest shoot formation (7.1 ± 0.9) was obtained with a medium fortified with 8.9 μM BAP plus 2.7 μM NAA. Regenerated shoots were easily rooted on the different tested media, with the most abundant (16.6 ± 1.4) and strongest roots obtained on half-strength MS medium containing 2.5 μM IBA. The rooted plantlets were successfully acclimatized (76.6%) in a greenhouse before transference to natural conditions. Homogeneity and phytochemical productivity of the in vitro regenerated plantlets were confirmed by random amplified polymorphic DNA (RAPD) profiles and high performance liquid chromatography (HPLC), respectively.


2000 ◽  
Vol 5 (1) ◽  
pp. 15
Author(s):  
A. S. AI-Wasel

Shoot multiplication of a putative variant of Catharanthus roseus (L.) G. Don, was achieved in vitro using shoot tips and nodal segments as explants. The addition of growth regulators to establishment medium stimulated bud breaking and shoot elongation. The maximum shoot multiplication (15.1 shoots/microshoot) and the longest shoots (7.0 cm) occurred on Murashige and Skoog medium (MS) containing 1.0 mg L-1 of N6-Benzyladenine (BA) and a- Naphthalene acetic acid (NAA). All microshoots formed roots and normal root morphology occurred on half strength MS salt supplied with 0.5 mg L-1 NAA or Indole-B-Butyric acid (IBA). Rooted microshoots (95 %) were successfully transferred to soil.


2019 ◽  
Vol 10 ◽  
pp. 1669-1679 ◽  
Author(s):  
Mohamad Shatnawi ◽  
Rida A. Shibli ◽  
Wesam G. Shahrour ◽  
Tamara S. Al-Qudah ◽  
Abu-Zahra Taleb

An efficient protocol is outlined for rapid and mass micropropagation of Ficus carica L. (fig). Shoot tips (5 mm) were obtained from mother plants stock grown on half strength Murashige and Skoog (½ MS) medium with the addition of 30 g/L sucrose. For shoot multiplication Benzyl amino purine (BAP) and kinetin produced differences number of new shoot per plant and shoot height. BAP at 0.4 mg/L in combination with 0.2 mg/L indole-3-butyric-acid (IBA) produce maximum in vitro propagation rate, with 4.2 shoots per ex-plant. Root initiation was experimented on MS medium containing different concentrations of mg/L, IBA, IAA (Indole-3-acetic-acid) (IAA) or Naphthalene acetic acid (NAA). Highest number of root (4.3) was resulted when 1.5 mg/L IBA was used. After acclimatization in a mixture of (1 soil: 1 perlite: 1 peat) survival rate of 80% was achieved. For in vitro conservation of F. carica was experimented as microshoots were stored for 40 weeks on MS medium containing different sucrose concentration. Medium supplemented with 3% sucrose gave the highest regrowth (89%) at 24 ± 2 °C. Culture grew slowly when transferred to new fresh medium after the storage periods.


2007 ◽  
Vol 44 (07) ◽  
pp. 514-519 ◽  
Author(s):  
Ved Prakash Pandey ◽  
Jose Kudakasseril ◽  
Elizabeth Cherian ◽  
George Patani ◽  

Two different methods of in vitro multiplication of Rauwolfia serpentina from nodal explants were compared viz. multiplication via callus morphogenesis and that via shoot proliferation from axillary buds. The second method was found to be far better. The optimum shoot proliferation occurred on Murashige and Skoog (MS) medium supplemented with 1 mg/L naphthalene acetic acid (NAA) and 2 mg/L of benzyl aminopurine (BAP). The best rooting of shoots occurred on MS medium containing 4% sucrose and 1 mg/L of NAA. Solid and liquid MS media were found to be similar in supporting shoot proliferation. The plants produced were successfully hardened and established in soil. An easy, reliable and reproducible protocol was developed for in vitro micropropagation of Rauwolfia serpentina from nodal explants.


2016 ◽  
Vol 4 (2) ◽  
pp. 155-160
Author(s):  
Lila Bahadur Magar ◽  
Nisha Shrestha ◽  
Saraswoti Khadka ◽  
Jay Raj Joshi ◽  
Jibaraj Acharya ◽  
...  

Paulownia tomentosa Steud is a fast growing multipurpose tree. In vitro propagation using nodal explants of Paulownia tomentosa was performed by manipulating amount of cytokinin and auxin in culture media. Shoot bud proliferation from explants were assessed in Murashige and Skoog (MS) medium supplemented with various amounts of hormones such as a) 0.5-2.5 mg/l benzylaminopurine (BAP) and 0.1 mg/l naphthalene acetic acid (NAA), b) 0.5-2.5 mg/l BAP and 0.5-2.5 mg/l kinetin (KN) and c) 0.5- 2.5 mg/l BAP and 0.1 mg/l indole-3-acetic acid (IAA). In the present study, we found that hormone combination of BAP and NAA gave optimum growth results. MS medium enriched with 2.0 mg/l BAP and 0.1 mg/l IAA resulted a similar outcome but took 3-4 weeks with respect to the same medium enriched with 1.0 mg/ml BAP and 0.1 mg/ml NAA, which showed response within 2-3 weeks. Shoot length of 2.5-3.5 cm with 3-4 nodes and 8-12 leaves were obtained on MS medium supplemented with 1.0 mg/l BAP and 0.1 mg/l NAA. The acclimatization of explants was done in a polyhouse at 20±5oC for 2-6 weeks. Rooting has been induced in nonsterile sand. Rooted plants were transferred to plastic bags containing mixture of soil, sand and compost in the ratio of 1:1:1.Besides aforementioned issues, there are several other challenges associated with in vitro propagation of P. tomentosa. The plants were established (90%) on MS medium enriched with BAP and NAA and adapted ex vitro with surviving up to 80%. People received an opportunity with this plant because it grows fast and can generate income in 10 years in comparison with others, but at the same time people also have been facing the challenges for plantation of P. tomentosa as government of Nepal does not formulate necessary national policies, legislations and regulatory frameworks in its favor. Thus, system should be developed to set royalty rate of P. tomentosa recognizing its lifetime value.Int J Appl Sci Biotechnol, Vol 4(2): 155-160


2015 ◽  
Vol 22 (1) ◽  
pp. 33-36
Author(s):  
A. Benniamin ◽  
G. Jothi ◽  
M. Sundari

Protocols of axillary bud multiplication were established for Dodonaea viscosa (Sapindaceae). Murashig & Skoog’s medium with 0.2 mg/l BAP with 0.01 Naphthalene acetic acid induced high rate of shoot induction and an average of five shoots per node. Subsequent culture enhanced the number of shoots. Callus initiated from the basal cut end explants differentiated in to more than 10 shoots on MS Medium with 0.4mg/l Benzylaminopurine and 0.02mg/l Indole Butric Acid. Eighty per cent of the rooted shoots survived when transferred to greenhouse and subsequently to the field.


2020 ◽  
Vol 100 (2) ◽  
pp. 202-208
Author(s):  
Mengting Wang ◽  
Guiliang Zhang ◽  
Peiyao Xin ◽  
Yun Liu ◽  
Bin Li ◽  
...  

Camellia fascicularis is an endangered evergreen ornamental plant with pale yellow flowers. An efficient and reproducible in vitro regeneration method is required for its large-scale propagation and germplasm conservation. In this study, one axillary bud per nodal stem was obtained from C. fascicularis cultured on Murashige & Skoog (MS) medium containing 0.1 mg L−1 indole-3-acetic acid (IAA) combined with 1.0 mg L−1 6-benzylaminopurine (BA). Axillary buds from the stem segments were transferred to modified woody plant medium (WPM) supplemented with 3.0 mg L−1 BA in combination with 0.3 mg L−1 IAA for multiplication, thereby resulting in a high shoot multiplication rate of 6.8. Multiple shoots were divided into nodal stems and shoot tips and were induced to root. The shoot tips were induced to root by culturing on one-half MS medium supplemented with 2.0 mg L−1 indole-3-butyric acid (IBA) in combination with 0.3 mg L−1 α-naphthalene acetic acid (NAA), which resulted in 76.0% rooting efficiency with 2.3 roots per shoot. The optimal hormone ratio for inducing rooting of nodal stems was 1.0 mg L−1 IBA in combination with 2.0 mg L−1 NAA, which resulted in 72.7% rooting efficiency with 1.7 roots per nodal stem. These two rooted plantlets were successfully acclimatized and established in a greenhouse.


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