scholarly journals Study of culture conditions for improved micropropagation of hybrid rose

2008 ◽  
Vol 35 (No. 1) ◽  
pp. 27-34 ◽  
Author(s):  
K. Senapati S ◽  
R. Rout G
Keyword(s):  
Acetic Acid ◽  
Shoot Multiplication ◽  
Multiple Shoots ◽  
Culture Conditions ◽  
Gelling Agent ◽  
Naphthalene Acetic Acid ◽  
Ms Medium ◽  
Subculture Period ◽  
Half Strength

An efficient protocol was developed for micropropagation of hybrid roses by manipulating growth regulators, photoperiods, gelling agent and subculture period. Multiple shoots were achieved from nodal explants of <I>Rosa hybrida</I> cvs. Cri Cri, Pariser Charme and First Red on the Murashige and Skoog (MS) medium supplemented with 1.5–2.0 mg/l BA (6- benzylaminopurine), 50 mg/l Ads (adenine sulfate) with 3% (w/v) sucrose. Inclusion of indole-3-acetic acid (IAA; 0.1–0.25 mg/l) into the cytokinin-rich medium promoted high frequency of shoot multiplication. The induction of multiple shoots was also affected by photoperiod and subculture period. Higher multiplication was achieved under 16 h photoperiod in all tested cultivars. The rate of multiplication was low when photoperiod both increased or decreased. The frequency of shoot multiplication was best up to the 6<sup>th</sup> to 7<sup>th</sup> subculture and thereafter it declined. Rooting was readily achieved upon transferring the microshoots onto half-strength MS medium supplemented with 0.25 mg/l IBA (indole-3-butyric acid) and 2% (w/v) sucrose. The percentage of rooting was less on MS medium containing NAA (1-naphthalene acetic acid) or IAA as compared with IBA. More than 60% of rooted plantlets were established in the greenhouse. The<I> in vitro</I> raised plantlets were grown normally and flowered within one month after their transfer to open field.

scholarly journals Establishment and In Vitro Propagation of a Putative Variant of Periwinkle

2000 ◽  
Vol 5 (1) ◽  
pp. 15
Author(s):  
A. S. AI-Wasel
Keyword(s):  
Acetic Acid ◽  
In Vitro Propagation ◽  
Shoot Multiplication ◽  
Shoot Elongation ◽  
Nodal Segments ◽  
Naphthalene Acetic Acid ◽  
Murashige And Skoog Medium ◽  
Half Strength ◽  
Bud Breaking

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.

scholarly journals Micropropagation and Conservation of Fig (Ficus Carica L.)

2019 ◽  
Vol 10 ◽  
pp. 1669-1679 ◽  
Author(s):  
Mohamad Shatnawi ◽  
Rida A. Shibli ◽  
Wesam G. Shahrour ◽  
Tamara S. Al-Qudah ◽  
Abu-Zahra Taleb
Keyword(s):  
Acetic Acid ◽  
Sucrose Concentration ◽  
Plant Root ◽  
Shoot Multiplication ◽  
Propagation Rate ◽  
Ficus Carica ◽  
Naphthalene Acetic Acid ◽  
Ms Medium ◽  
Shoot Height

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.

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
Keyword(s):  
Acetic Acid ◽  
In Vitro Propagation ◽  
Indole Acetic Acid ◽  
Shoot Multiplication ◽  
Naphthalene Acetic Acid ◽  
Ms Medium ◽  
Musa Sp ◽  
Initial Culture ◽  
Banana Cultivar

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

In vitro propagation of Camellia fascicularis: a plant species with extremely small populations

2020 ◽  
Vol 100 (2) ◽  
pp. 202-208
Author(s):  
Mengting Wang ◽  
Guiliang Zhang ◽  
Peiyao Xin ◽  
Yun Liu ◽  
Bin Li ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Large Scale ◽  
In Vitro Regeneration ◽  
Germplasm Conservation ◽  
Shoot Multiplication ◽  
Shoot Tips ◽  
Naphthalene Acetic Acid ◽  
Multiplication Rate ◽  
Ms Medium

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.

scholarly journals 027 MULTIPLICATION OF ROSE SPECIES IN VITRO

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 431d-431
Author(s):  
Yan Ma ◽  
David H. Byrne ◽  
Jing Chen ◽  
Amanda Byrne
Keyword(s):  
Basal Medium ◽  
Shoot Proliferation ◽  
Shoot Multiplication ◽  
Multiple Shoots ◽  
Naphthalene Acetic Acid ◽  
Good Growth ◽  
Lateral Buds ◽  
Half Strength ◽  
The Media

Several rose species (Rosa rugosa, R. wichuraiana, R. setigera, R. laevigata, R. banksiae, R. roxburghii, R. odorata and hybrids) were employed to establish the appropriate nutrient media for shoot multiplication and root initiation of cultured shoots and to describe a procedure for the successful transfer to soil of plants obtained in vitro. Cultured shoot tips and lateral buds from different genotypes proliferated multiple shoots on a basal medium (MS salt, vitamins, glycine, sucrose and agar) supplemented with 0mg/l to 6mg/l 6-benzylamino purine (BA) and 0mg/l to 0.5 mg/l naphthalene acetic acid (NAA). Most rose species cultured in a modified MS medium supplemented with 2mg/l BA showed good growth and shoot proliferation. The buds nearest the apex exhibited the slowest rate of bud development. Root development was enhanced and shoot development inhibited by lowering the concentration of MS salts to quarter- and half-strength. With difficult-to-root species, rooting was improved by supplementing the media with auxin or giving them 3-7days of dark treatment.

scholarly journals In vitro propagation of Boerhaavia diffusa L.: An important medicinal plant of family Nyctagimaceae

2019 ◽  
Vol 79 (01) ◽  
Author(s):  
Ashu Pandey ◽  
Oshin Verma ◽  
Suresh Chand
Keyword(s):  
Acetic Acid ◽  
Medicinal Plant ◽  
Liquid Medium ◽  
Naphthalene Acetic Acid ◽  
Ms Medium ◽  
Regenerated Plants ◽  
Half Strength ◽  
Boerhaavia Diffusa ◽  
Important Medicinal Plant

Boerhaavia diffusa L., also known as santhi, or punarnava is an important medicinal plant, belonging to the family Nyctaginaceae. This species is said to be distributed throughout Malwa plateau in central India, as per ayurvedic literature, but due to extensive commercial exploitation, the species has become vulnerable. For callus induction, leaf explants were cultured on Murashige and Skoog (MS) medium supplemented with various concentrations of 2,4- dichlorophenoxy acetic acid (2, 4-D 2.26 µM-9.04 µM) and N 6-benzyladenine (BA 1.11 µM-4.44 µM), either alone or in combinations. Calli formed within 10-12 days of culture, followed by shoots regeneration within 20-25 days. Direct organogenesis was achieved from nodal explants in MS media fortified with 2,4-D (2.26 µM-9.04 µM) along with BA (1.11 µM-4.44 µM) within 20 days. Multiple shooting was observed during subculture of in vitro regenerated shoots when 2,4-D was replaced with α-naphthalene acetic acid (NAA). Rooting was achieved in MS medium fortified with 2.85 µM IAA, within 7-10 days and also on half strength MS medium containing 2.85 µM Indole-3-acetic acid (IAA). For hardening, regenerated plants, with roots (3-4cm) were initially maintained on half-strength MS liquid medium (MS1/2) without growth regulators followed by quarter strength MS (MS1/4) liquid medium for 10 days. For acclimatization sterile mixture of soil, sand and manure (2:1:1) was used. Survival rate of regenerated plants was nearly 100%.

scholarly journals In Vitro Propagation of Camellia oleifera Abel. Using Hypocotyl, Cotyledonary Node, and Radicle Explants

HortScience ◽  
2016 ◽  
Vol 51 (4) ◽  
pp. 416-421 ◽  
Author(s):  
Ze Li ◽  
Xiaofeng Tan ◽  
Zhiming Liu ◽  
Qing Lin ◽  
Lin Zhang ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Adventitious Shoots ◽  
Shoot Multiplication ◽  
Cotyledonary Node ◽  
Direct Organogenesis ◽  
Naphthalene Acetic Acid ◽  
Ms Medium ◽  
Camellia Oleifera ◽  
Cotyledonary Nodes

Camellia oleifera Abel. is one of four major woody oil plants in the world. The objective of the current study was to evaluate the effect of different plant growth regulators (PGRs) and concentrations on direct organogenesis using cotyledonary nodes, hypocotyls, and radicle explants. High induction frequency of adventitious shoots were obtained from cotyledonary nodes, hypocotyls, and radicle explants (85.2%, 73.6%, and 41.0%, respectively) when cultured on half-strength Murashige and Skoog (1/2 MS) medium containing 2.0 mg·L−1 6-benzylaminopurine (BA) and 0.1 mg·L−1 indole-3-acetic acid (IAA). Microshoots from cotyledonary nodes, hypocotyls, and radicle explants were then transferred to 1/2 MS medium containing 2.0 mg·L−1 BA and 0.05 mg·L−1 indole-3-butyric acid (IBA) for shoot multiplication, resulting in 6.9 shoots per explant. The shoots were transferred to Woody Plant Medium (WPM) supplemented with various α-naphthalene acetic acid (NAA) and gibberellic acid (GA3) for shoot elongation. The mean length of shoots and the number of leaves per shoot were 3.7 and 6.6 cm, respectively, in WPM supplemented with 0.5 mg·L−1 NAA and 3.0 mg·L−1 GA3. The highest rooting of shoots (90.2%) or the number of roots per shoot (7.2) was obtained when elongated microshoots were transferred to 1/2 MS medium supplemented with 3.5% perlite, 1.0 mg·L−1 IBA and 2.0 mg·L−1 NAA. The rooted plantlets were successfully acclimatized in the greenhouse with a survival rate of 90.0%. The in vitro plant regeneration procedure described in this study is beneficial for mass propagation and improvement of C. oleifera through genetic engineering.

scholarly journals Standardization of protocol for in vitro propagation of banana (Musa sapientum)

2018 ◽  
Vol 16 (1) ◽  
pp. 27-30
Author(s):  
Farhana Hoque ◽  
Mahbub Robbani ◽  
Md Fakhrul Hasan ◽  
Jahanara Parvin
Keyword(s):  
Acetic Acid ◽  
In Vitro Propagation ◽  
Plant Biotechnology ◽  
Shoot Multiplication ◽  
Naphthalene Acetic Acid ◽  
Ms Medium ◽  
Root Initiation ◽  
Root Regeneration ◽  
Shoot Initiation

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

scholarly journals In Vitro Seed and Clonal Propagation of the Mediterranean Aromatic and Medicinal Plant Teucrium capitatum

HortScience ◽  
2016 ◽  
Vol 51 (4) ◽  
pp. 403-411 ◽  
Author(s):  
Maria Papafotiou ◽  
Aekaterini N. Martini
Keyword(s):  
Seed Germination ◽  
Shoot Multiplication ◽  
Culture Conditions ◽  
Wild Plants ◽  
Ms Medium ◽  
Continuous Darkness ◽  
Half Strength ◽  
Concentrated Sulfuric Acid ◽  
And Storage

The effect of various pretreatments, culture conditions, and storage time on in vitro germination of seeds, as well as the effect of explant origin and plant growth regulators on in vitro propagation of Teucrium capitatum L. (Teucrium polium sp. capitatum Arcang., Lamiaceae) were examined. Seeds, collected from native plants and stored at room temperature for 3, 7, and 12 months, were cultured for germination in vitro in petri dishes with solid half-strength (½) Murashige and Skoog (1962) growth medium (MS) at 5, 10, 15, 20, 25, and 30 °C, and 16 hours light or continuous darkness. Pretreatments, such as cold stratification, scarification with sandpaper, dipping in concentrated sulfuric acid (H2SO4 > 95%), or dipping in boiling water were tested. Seeds without any pretreatment germinated at lower than 10%. Dipping in concentrated H2SO4 for 15 or 20 minutes was the most effective pretreatment, but still seed germination achieved was low (36%). Seeds preserved their germination capacity for at least 1 year, and germinated satisfactorily at a wide temperature range, from 15 to 25 °C (optimum), while photoperiod did not affect seed germination. Explants excised from in vitro-grown seedlings were established in vitro on MS medium with 1.0 mg·L−1 6-benzyladenine (BA) at much higher rates (≈90%) compared with those collected from plants grown from cuttings in a greenhouse (25%), while explants collected from adult wild plants failed to do so. Explants from seedlings showed strong variability in their response; those excised from branched seedlings formed shoots at significantly higher percentage (90%) at the establishment stage (cultured on MS medium with 0.5–2.0 mg·L−1 BA) than explants excised from unbranched seedlings (36% to 43%), while during subcultures on MS medium with 1.0 mg·L−1 BA, explants from branched seedlings also showed higher multiplication rates than those from unbranched ones. BA at 0.5–2.0 mg·L−1 induced shoot multiplication during both establishment and multiplication stages (7–8 and 14–15 shoots per explant, respectively), while kinetin and 6-γ-γ-(dimethylallylamino)-purine (2iP) were less effective than BA, and zeatin the least appropriate. Microshoot rooting was enhanced by 1-week culture on (½) MS medium with 1.0–4.0 mg·L−1 indole-3-butyric acid (IBA), followed by transfer to auxin-free, (½) MS medium (93% to 98%, 7–8 roots per microshoot), compared with culture on the same medium continuously for 5 weeks (69% to 80%, 5–6 roots per microshoot) or at lower IBA concentrations. Plantlets were acclimatized to ex vitro conditions at 98% on a peat–perlite (1:1, v/v) mixture.

scholarly journals In Vitro Propagation of Citrus reticulata Blanco and Citrus limon Burm.f.

HortScience ◽  
1994 ◽  
Vol 29 (3) ◽  
pp. 214-216 ◽  
Author(s):  
S. Singh ◽  
B.K. Ray ◽  
S. Bhattacharyya ◽  
P.C. Deka
Keyword(s):  
Acetic Acid ◽  
In Vitro Propagation ◽  
Multiple Shoots ◽  
Naphthalene Acetic Acid ◽  
Citrus Limon ◽  
Root Induction ◽  
Citrus Reticulata ◽  
Ms Medium ◽  
Citrus Species

Multiple shoots were obtained from shoot tips (2 to 3 mm) derived from mature plants (5 to 6 years old) of Citrus reticulata Blanco cv. Khasi mandarin and C. limon Burm.f. cv. Assam lemon when cultured on Murashige and Skoog (MS) medium, supplemented with (mg·liter-1) 1.0 BAP, 0.5 kinetin, and 0.5 NAA. Root induction was observed when 7-week-old single shoots (≈ 2 cm long) of both Citrus species were cultured on MS medium supplemented with (mg·liter-1) 0.25 BAP, 0.5 NAA, and 0.5 IBA. These plantlets were successfully established in the soil. Chemical names used: naphthalene acetic acid (NAA), indole 3-butyric acid (IBA), and benzylamino purine (BAP).

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