Kalmia latifolia: Stritch, L.

2018 ◽  
Author(s):  
Keyword(s):  
Kalmia Latifolia

Early events in the embryo sac after intraspecific and interspecific pollinations in Rhododendron kawakamii and R. retusum

1986 ◽  
Vol 64 (2) ◽  
pp. 282-291 ◽  
Author(s):  
V. Kaul ◽  
J. L. Rouse ◽  
E. G. Williams
Keyword(s):  
Seed Set ◽  
Embryo Sac ◽  
Pollen Tubes ◽  
Interspecific Crosses ◽  
Primary Endosperm Nucleus ◽  
Kalmia Latifolia ◽  
Taxonomic Grouping ◽  
Similarities And Differences ◽  
Normal Fertilization

Early events in the embryo sac of Rhododendron kawakamii and R. retusum have been studied after compatible self-pollinations and eight interspecific crosses, using sectioned ovaries, pistil squashes, and seed-set data. Ovules of Rhododendron kawakamii and R. retusum are anatropous, unitegmic, and tenuinucellate, with a typical eight-nucleate, seven-celled embryo sac. Fertilization normally occurs 4–5 days after pollination. The zygote lays down a callose wall but remains undivided during the first 13–15 days after pollination. The primary endosperm nucleus divides soon after fertilization, and development is cellular ab initio. Crosses of R. kawakamii (♂) with R. santapaui and R. retusum and crosses of R. retusum (♂) with R. kawakamii, R. santapaui, R. ovatum, and R. tashiroi showed apparently normal fertilization in a majority of ovules entered by pollen tubes. In crosses of R. kawakamii (♂) with R. quadrasianum and Kalmia latifolia entry of pollen tubes into ovules was delayed and frequently abnormal. Apart from compatible self-pollinations of R. kawakamii an R. retusum, only the cross of R. kawakamii (♂) with R. santapaui produced healthy seedlings. Of the remaining seven interspecific crosses only three showed significant embryo development in control pistils left to mature in situ. Similarities and differences in the breeding behaviour of R. kawakamii and R. retusum are discussed with reference to their taxonomic grouping within subsection Pseudovireya.

scholarly journals Effect of Backfill Composition on Post-Transplant Root Growth of Kalmia latifolia L.

2007 ◽  
Vol 25 (3) ◽  
pp. 145-149
Author(s):  
Amy N. Wright ◽  
Robert D. Wright ◽  
Brian E. Jackson ◽  
Jake F. Browder
Keyword(s):  
Root Growth ◽  
Pinus Taeda ◽  
Pine Bark ◽  
Plant Establishment ◽  
Kalmia Latifolia ◽  
Post Transplant ◽  
Landscape Plant ◽  
Wide Range ◽  
Pinus Taeda L ◽  
Mountain Laurel

Abstract Post-transplant root growth is critical for landscape plant establishment. The Horhizotron™ provides a way to easily measure root growth in a wide range of rhizosphere conditions. Mountain laurel (Kalmia latifolia L.) plants were removed from their containers and planted in Horhizotrons in a greenhouse in Auburn, AL, and outdoors in Blacksburg, VA. Each Horhizotron contained four glass quadrants extending away from the root ball, and each quadrant within a Horhizotron was filled with a different substrate (treatment): 1) 100% pine bark (Pinus taeda L., PB), 2) 100% soil, 3) a mixture of 50:50 (by vol) PB:soil, or 4) 100% soil along the bottom of the quadrant to a depth of 10 cm (4 in) and 100% PB layered 10 cm (4 in) deep on top of the soil. Root growth along the glass panes of each quadrant was measured bi-weekly in Auburn and weekly in Blacksburg. In both locations, roots were longer in all treatments containing pine bark than in 100% soil. When pine bark was layered on top of soil, roots grew into the pine bark but did not grow into the soil. Results suggest that amending soil backfill with pine bark can increase post-transplant root growth of container-grown mountain laurel.

scholarly journals Two New Species of Leafblight Fungi on Kalmia Latifolia

Mycologia ◽  
1965 ◽  
Vol 57 (4) ◽  
pp. 576-582
Author(s):  
F. A. Wolf ◽  
A. R. Cavaliere
Keyword(s):  
New Species ◽  
Kalmia Latifolia ◽  
Two New Species

scholarly journals Drought Tolerance of Tissue-cultured Seedlings of Mountain Laurel (Kalmia latifolia L.) Induced by an Endophytic Actinomycete II. Acceleration of Callose Accumulation and Lignification

2005 ◽  
Vol 19 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Sachiko Hasegawa ◽  
Akane Meguro ◽  
Kazuhiro Toyoda ◽  
Tomio Nishimura ◽  
Hitoshi Kunoh
Keyword(s):  
Drought Tolerance ◽  
Endophytic Actinomycete ◽  
Kalmia Latifolia ◽  
Mountain Laurel

Investigating the Allelopathic Potential of Kalmia latifolia L. (Ericaceae)

2005 ◽  
Vol 4 (3) ◽  
pp. 383-392 ◽  
Author(s):  
Holly R. Eppard ◽  
Jonathan L. Horton ◽  
Erik T. Nilsen ◽  
Preston Galusky ◽  
Barton D. Clinton
Keyword(s):  
Allelopathic Potential ◽  
Kalmia Latifolia

Impacts of repeated wildfire on long-unburned plant communities of the southern Appalachian Mountains

2015 ◽  
Vol 24 (7) ◽  
pp. 911 ◽  
Author(s):  
Donald L. Hagan ◽  
Thomas A. Waldrop ◽  
Matthew Reilly ◽  
Timothy M. Shearman
Keyword(s):  
Plant Communities ◽  
Appalachian Mountains ◽  
Woody Species ◽  
Vegetation Monitoring ◽  
Paulownia Tomentosa ◽  
Tree Species Composition ◽  
Kalmia Latifolia ◽  
Southern Appalachian Mountains ◽  
Southern Appalachian ◽  
Table Mountain Pine

The infrequent occurrence of large wildfires in the southern Appalachian Mountains over the last several decades has offered few opportunities to study their impacts. From 2000 to 2008, five wildfires burned a large portion of the area in and surrounding the Linville Gorge Wilderness in North Carolina. Areas were burned either once or twice. The response of acid cove and thermic oak plant communities (structure, cover, richness, diversity) was measured in 78 vegetation monitoring plots, established in 1992 and remeasured in 2010–11. Fire altered forest structure in both communities, resulting in the mortality of larger trees and increases in the abundance of smaller (<5 cm diameter at breast height (DBH)) stems. Burning twice decreased stem counts for mountain laurel (Kalmia latifolia) in both communities, whereas oaks (Quercus spp.) responded positively to burning twice in the thermic oak community. Table Mountain pine stem counts increased in acid cove and thermic oak communities burned once. Fire appears to promote princesstree (Paulownia tomentosa) invasion. Herbaceous species cover responded positively to fire (once or twice; both communities), with concurrent increases in woody species richness and diversity. Tree species composition in acid cove plots was not affected by burning, although some slight changes occurred in thermic oak plots burned twice.

scholarly journals Micropropagation through shoot tip and leaf-derived callus culture in kalmia (Kalmia latifolia L.).

1989 ◽  
Vol 6 (2) ◽  
pp. 68-72 ◽  
Author(s):  
Hirokatsu SUDA ◽  
Sueo ENOMOTO ◽  
Kousuke NAKAJIMA
Keyword(s):  
Callus Culture ◽  
Shoot Tip ◽  
Kalmia Latifolia

scholarly journals Germination and Growth of Four Species of Ericaceous Plants

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 633d-633
Author(s):  
John M. Englert ◽  
Carroll Barrack ◽  
Dan Woolston
Keyword(s):  
Plant Species ◽  
Vaccinium Corymbosum ◽  
Kalmia Latifolia ◽  
Moisture Regimes ◽  
Rhododendron Maximum ◽  
Germination And Growth ◽  
Ericaceous Plant ◽  
Good Germination

The germination of ericaceous plant species is often variable and not well-defined. We have had some difficulty in obtaining good germination and significant establishment and growth after transplanting. Four different moisture regimes and two different media were used for the germination of Kalmia latifolia, Oxydendrum arboreum, Rhododendron maximum, and Vaccinium corymbosum seeds. Seeds were surface-sown on peat or peat + bark (1:4) media. Pots were then placed under either one of two different misting regimes, set in a tray of water, or set in a tray of water under a humidity tent. Germination was higher and more consistent for all species sown on peat and occurred sooner for seeds under the humidity tent. Rhododendron and Kalmia under the humidity tent grew more rapid than with other treatments. Increases in germination under the humidity tent were due more in part to higher temperatures than to the minimal increase of humidity inside the tent. Germination was poor for seeds under the high-mist treatment, presumably because there was too much moisture. Germination of Vaccinium and Oxydendrum was low for all treatments.

scholarly journals Kalmia latifolia

1927 ◽  
Vol 1 (12) ◽  
pp. 45-47
Author(s):  
Ernest Henry Wilson
Keyword(s):  
Kalmia Latifolia

scholarly journals LOWEST SURVIVAL TEMPERATURE (LST) ESTIMATES FOR KALMIA LATIFOLIA (L.) AS AFFECTED BY NUCLEATION/SEEDING TREATMENTS

HortScience ◽  
1996 ◽  
Vol 31 (6) ◽  
pp. 912G-913
Author(s):  
John Wachter ◽  
Paul E. Cappiello
Keyword(s):  
Leaf Damage ◽  
Wild Plants ◽  
Damage Evaluation ◽  
Stem Cuttings ◽  
Future Studies ◽  
Leaf Petiole ◽  
Kalmia Latifolia ◽  
Handling Methods ◽  
Crushed Ice ◽  
Vegetative Bud

Terminal stem cuttings of Kalmia latifolia were collected from wild plants (Milford, N.H.) on 12 Nov. and transported on ice to Orono, Maine, for analysis. Samples were processed as follows: 1) stems wrapped in dry cheesecloth; 2) stems wrapped in moist cheesecloth; and 3) stems seeded with crushed ice and wrapped in moist cheesecloth. Prepared samples were subjected to freezing tests to a low temperature of –36C. Following two weeks of incubation at 21C, samples were evaluated for leaf, petiole, stem, and vegetative bud damage. Evaluation of frozen samples revealed: 1) stem tissue remained undamaged to –36C; 2) leaf damage was inconsistent across all handling methods, with no clear LST estimate, and ice seedinggenerally resulted in increased tissue damage; 3) LSTs for vegetative buds and petiole bases were –18C and –15C, respectively, and both yielded definitive and consistent results across all treatments. The results indicate bud and petiole tissue to be the best to use for future studies on LST estimates in Kalmia latifolia.

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