X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    Restoration of high adventitious root regeneration potential in mature Betula papyrifera Marsh, softwood stem cuttings
    Canadian Science Publishing ; 1988
    In:  Canadian Journal of Forest Research Vol. 18, No. 2 ( 1988-02-01), p. 265-269
    Details
    In: Canadian Journal of Forest Research, Canadian Science Publishing, Vol. 18, No. 2 ( 1988-02-01), p. 265-269
    Abstract: Grafted mature (flowering) Betulapapyrifera Marsh, scions were used to investigate restoration of high adventitious root regeneration potential in softwood stem cuttings. Scion manipulation (defoliation), serial propagation (using previously rooted cuttings as stock plants), hedging (severe pruning), and micropropagation were used as possible restoration treatments. Over a 15-month period, more than 8000 softwood stem cuttings were taken for propagation. Serial propagation more than doubled (from 20 to 44%) rooting response. Rooting response of tissue cultured microcuttings resulting from adventitious shoot initiation averaged 95% for 35 clones. By comparison, rooting response of open pollinated seedling families was 87% and stem cuttings from stock plants grown from tissue cultured microcuttings averaged 75%. Variation in clonal rooting response among propagation times represented a greater source of variation than that attributed to serial propagation or clone. Scion manipulation and hedging were ineffective in increasing stem cutting rooting potential. High rooting potential in mature birch can best be restored via tissue culture.
    Type of Medium: Online Resource
    ISSN: 0045-5067 , 1208-6037
    URL: Article
    DOI: 10.1139/x88-038
    Language: English
    Publisher: Canadian Science Publishing
    Publication Date: 1988
    detail.hit.zdb_id: 1473096-0
    SSG: 23
    SSG: 12
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
  • 2
    Online Resource
    Online Resource
    Growth and Flowering Responses of Sea Marigold to Daminozide, Paclobutrazol, or Uniconazole Applied as Drenches or Sprays
    Springer Science and Business Media LLC ; 2014
    In:  Journal of Plant Growth Regulation Vol. 33, No. 3 ( 2014-9), p. 626-631
    Details
    In: Journal of Plant Growth Regulation, Springer Science and Business Media LLC, Vol. 33, No. 3 ( 2014-9), p. 626-631
    Type of Medium: Online Resource
    ISSN: 0721-7595 , 1435-8107
    URL: Article
    DOI: 10.1007/s00344-014-9411-7
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2014
    detail.hit.zdb_id: 1462091-1
    SSG: 12
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
  • 3
    Online Resource
    Online Resource
    Copper Compounds Influence in Vitro Rooting of Birch Microcuttings
    American Society for Horticultural Science ; 1994
    In:  Journal of the American Society for Horticultural Science Vol. 119, No. 1 ( 1994-01), p. 74-79
    Details
    In: Journal of the American Society for Horticultural Science, American Society for Horticultural Science, Vol. 119, No. 1 ( 1994-01), p. 74-79
    Abstract: The effects of woody plant medium (WPM) with various formulations and concentrations of Cu +2 on in vitro rooting and subsequent shoot growth of microcuttings of a Betu pubescens × papyrzfera (birch) clone were monitored for 28 days. Adventitious root initiation and elongation were reduced in magnitude and slowed in development by moderate to high Cu (as CuSO 4 ·5H 2 O) concentrations, with near zero root regeneration occurring at 157 μ m Cu. Shoot growth was also inhibited by 157 μM Cu as cupric sulfate. Copper-toxicity symptoms (senescent leaves, necrotic stems, and bulbous and stunted roots) were significantly increased by moderate to high levels (≥ 79 μ m ) of Cu as cupric sulfate. Microcuttings responded differently to Cu +2 applied as cupric chloride (CuCl 2 ·2H 2 O). Root initiation, root elongation, and root branching were increased by moderate concentrations of Cu as cupric chloride. Shoot growth was slightly stimulated by cupric chloride at moderate levels. No significant increase in Cu-toxicity symptoms was observed at concentrations up to 157 μ m Cu as cupric chloride. Cupric acetate [Cu(CH 3 COO);H 2 O] and cupric carbonate [C u CO 3 ·C u (OH) 2 ] produced more severe Cu-toxicity symptoms than cupric sulfate. Root regeneration and shoot growth were inhibited and increased Cu-toxicity symptoms were apparent even with low concentrations (39 μ m ) of Cu as cupric acetate or cupric carbonate. There was little or no effect on root regeneration when the Cu +2 in cupric sulfate was replaced by different cations, i.e., magnesium sulfate (MgSO 4 ·7H 2 O), calcium sulfate (CaSO 4 ·2H 2 O), and sulfuric acid (H 2 SO 4 ), a result suggesting that the observed responses could be attributed to the Cu +2 concentration. Changes in media pH did not correspond to Cu-toxicity symptoms or alterations in root or shoot growth by the Cu compounds.
    Type of Medium: Online Resource
    ISSN: 0003-1062 , 2327-9788
    URL: Article
    DOI: 10.21273/JASHS.119.1.74
    Language: Unknown
    Publisher: American Society for Horticultural Science
    Publication Date: 1994
    detail.hit.zdb_id: 2040057-3
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
  • 4
    Online Resource
    Online Resource
    Survival of in Vitro Cultured Tissue of ‘Jonathan’ Apples Exposed to −196°C
    American Society for Horticultural Science ; 1985
    In:  HortScience Vol. 20, No. 4 ( 1985-08), p. 764-767
    Details
    In: HortScience, American Society for Horticultural Science, Vol. 20, No. 4 ( 1985-08), p. 764-767
    Abstract: Shoot tip explants taken from proliferating cultures of apple ( Malus domestica ‘Jonathan’) survived freezing to −196°C in the presence of cryoprotectants. Regrowth following freezing to −196° was in the form of callus growth, indicating that the meristems were injured to such an extent that organized growth of the shoot meristem was precluded. A cold acclimation period of up to 6 weeks at 4° in the dark was required to obtain acceptable survival levels. Glycerol generally was more effective than DMSO in providing cryoprotection to cold acclimated shoot tips.
    Type of Medium: Online Resource
    ISSN: 0018-5345 , 2327-9834
    URL: Article
    DOI: 10.21273/HORTSCI.20.4.764
    Language: Unknown
    Publisher: American Society for Horticultural Science
    Publication Date: 1985
    detail.hit.zdb_id: 2040198-X
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
  • 5
    Online Resource
    Online Resource
    Can a Floral Design Lab Course Be Taught Effectively Using Web-Based Delivery?
    American Society for Horticultural Science ; 2004
    In:  HortScience Vol. 39, No. 4 ( 2004-07), p. 809A-809
    Details
    In: HortScience, American Society for Horticultural Science, Vol. 39, No. 4 ( 2004-07), p. 809A-809
    Abstract: The performance and satisfaction of students enrolled in a traditionally structured lecture/lab floral design course and a Web-based version of the same course were compared. Students were assigned randomly to course sections by available seating. Data collected included a demographic survey, design and course evaluations, and test grades. Significant differences were noted in class grades, with students in the traditionally taught course outperforming the Web-based students in both lecture and lab grades. Results from a survey instrument designed to determine whether students were suited to the distance learning environment (given only to the Web-based students) indicated a direct correlation between distance preparedness and course grades. A higher level of distance course preparedness correlated with a higher grade in the course. There was also a direct correlation between grades and whether the student was in the course with the delivery method they preferred. Students who were assigned to the course they preferred had significantly higher grades than students who did not. These results indicate that overall, a course such as floral design may be more effectively taught through traditional teaching techniques. However, certain students with adequate computer skills and a preference for Web-based courses may be successful in courses such as floral design.
    Type of Medium: Online Resource
    ISSN: 0018-5345 , 2327-9834
    URL: Article
    DOI: 10.21273/HORTSCI.39.4.809A
    Language: Unknown
    Publisher: American Society for Horticultural Science
    Publication Date: 2004
    detail.hit.zdb_id: 2040198-X
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
  • 6
    Online Resource
    Online Resource
    Cryoprotection by Glucose, Sucrose, and Raffinose to Chloroplast Thylakoids
    Oxford University Press (OUP) ; 1980
    In:  Plant Physiology Vol. 65, No. 2 ( 1980-02-01), p. 298-304
    Details
    In: Plant Physiology, Oxford University Press (OUP), Vol. 65, No. 2 ( 1980-02-01), p. 298-304
    Type of Medium: Online Resource
    ISSN: 0032-0889 , 1532-2548
    URL: Article
    DOI: 10.1104/pp.65.2.298
    RVK:
    WA 15000
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 1980
    detail.hit.zdb_id: 2004346-6
    detail.hit.zdb_id: 208914-2
    SSG: 12
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
  • 7
    Online Resource
    Online Resource
    Phenotypic variation during micropropagation of the chimeralRhododendron ?President Roosevelt?
    Springer Science and Business Media LLC ; 1990
    In:  Plant Cell, Tissue and Organ Culture Vol. 21, No. 3 ( 1990-6), p. 201-209
    Details
    In: Plant Cell, Tissue and Organ Culture, Springer Science and Business Media LLC, Vol. 21, No. 3 ( 1990-6), p. 201-209
    Type of Medium: Online Resource
    ISSN: 0167-6857 , 1573-5044
    URL: Article
    DOI: 10.1007/BF00047612
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 1990
    detail.hit.zdb_id: 1478391-5
    SSG: 12
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
  • 8
    Online Resource
    Online Resource
    CHIMERAL NATURE OF THE PINWHEEL FLOWERING AFRICAN VIOLETS (SAINTPAULIA, GESNERIACEAE)
    Wiley ; 1985
    In:  American Journal of Botany Vol. 72, No. 8 ( 1985-08), p. 1204-1212
    Details
    In: American Journal of Botany, Wiley, Vol. 72, No. 8 ( 1985-08), p. 1204-1212
    Abstract: Pinwheel flowering African violets are bicolor forms that have a patterned arrangement of colors on the corolla segments. A median band of one color extends radially from the central portion of the corolla on each corolla segment and contrasts with the marginal color. In vitro culture of various tissues was accomplished, and observation of the flowering patterns of the regenerated plants supports the hypothesis that the cultivars ‘Valencia’, ‘Dardevil’, and ‘Desert Dawn’ are periclinal chimeras. Adventitious plants display a high proportion of monochromatic flowers of the same color as the lateral margin of the corolla segments. Petiole cultures from which the epidermal layers were removed yielded plants with flowers of the color of the central stripe of the corolla segments. Pinwheel flowering plants were regenerated through short‐term culture of whole inflorescences, suggesting that the African violet inflorescence may possess axillary vegetative meristems. These results support the contention that adventitious shoots may arise from the epidermal layer only (L.I), or with the participation of the epidermal and subjacent layers (L.I and L.II). These results contradict the recent conclusion that all three histogen layers of African violet participate in adventitious shoot organization.
    Type of Medium: Online Resource
    ISSN: 0002-9122 , 1537-2197
    URL: Issue
    URL: Article
    DOI: 10.1002/ajb2.1985.72.issue-8
    DOI: 10.1002/j.1537-2197.1985.tb08373.x
    RVK:
    WA 15000
    Language: English
    Publisher: Wiley
    Publication Date: 1985
    detail.hit.zdb_id: 2053581-8
    SSG: 12
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
  • 9
    Online Resource
    Online Resource
    Integrating the Web into Existing Extension and Educational Technology
    American Society for Horticultural Science ; 1997
    In:  HortScience Vol. 32, No. 3 ( 1997-06), p. 553C-553
    Details
    In: HortScience, American Society for Horticultural Science, Vol. 32, No. 3 ( 1997-06), p. 553C-553
    Abstract: Recent studies by academic, extension, and private foundation “think tanks” have reaffirmed the land-grant philosophy as an important component of American society in the 21st century. According to Bill Campbell's dictum, successful land-grant systems will have more closely integrated educational, research, and extension programs characterized as more ACCESSIBLE, AFFORDABLE, and ACCOUNTABLE than current models. The World Wide Web affords the land-grant professional an information delivery/teaching system that conforms to Campbell's three As. Web technology is evolving rapidly, necessitating continuous and rapid adaptation by information providers. The availability of low-cost, user-friendly Web access through home TVs promises to upset the existing paradigms of extension information delivery through county offices and undergraduate instruction exclusively in the campus classroom. Some land-grant professionals have adopted Web technology as a tool to deliver educational programs and coursework; however, the vast majority have not. Most faculty continue to distribute information in a printed form, citing as justification the very steep learning curve and time involved in formatting materials for electronic delivery. We have emphasized the need for life-long learning to our clientele and students; we must heed our own advice. The transition from a paper-based, county-centered extension delivery system and campus classroom-oriented undergraduate educational system is being facilitated by satellite and compressed video conferencing, and Web server networks. Faculty must develop the ability to integrate appropriate technology into their own programs, since it is clear that the “efficient” land-grant systems of the future will not provide them with the support personnel to do it for them.
    Type of Medium: Online Resource
    ISSN: 0018-5345 , 2327-9834
    URL: Article
    DOI: 10.21273/HORTSCI.32.3.553C
    Language: Unknown
    Publisher: American Society for Horticultural Science
    Publication Date: 1997
    detail.hit.zdb_id: 2040198-X
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
  • 10
    Online Resource
    Online Resource
    Aggie Horticulture on Disk
    American Society for Horticultural Science ; 1998
    In:  HortScience Vol. 33, No. 3 ( 1998-06), p. 507c-507
    Details
    In: HortScience, American Society for Horticultural Science, Vol. 33, No. 3 ( 1998-06), p. 507c-507
    Abstract: The Aggie Horticulture Web site was written to CD-ROM using readily available, inexpensive equipment, supplies, and software. The CD-ROM version is accessed using the “load from file” option of the commonly used Web browsers and is cross-platform compatible. Writing to CD does not allow “server-side” functions such as cgi-based searching and forms posting and the content of the site is fixed at the time the CD is written. However, in situations where Web connectivity is limited in speed or where phone connections are unavailable, the CD represents a low-cost alternative for accessing large volumes of information. Aggie Horticulture on Disk will be demonstrated, and several precautions to be followed to ensure an error-free transition from Web site to CD will be described.
    Type of Medium: Online Resource
    ISSN: 0018-5345 , 2327-9834
    URL: Article
    DOI: 10.21273/HORTSCI.33.3.507c
    Language: Unknown
    Publisher: American Society for Horticultural Science
    Publication Date: 1998
    detail.hit.zdb_id: 2040198-X
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Online Resource
    Open Access Request
    Availability (electronic / print)
Nothing or not found what you are looking for? Please check your search query or use the Interlibrary Loan Search.
Close ⊗
This website uses cookies and the analysis tool Matomo. Further information can be found on the KOBV privacy pages