scholarly journals INFLUENCE OF ROOTSTOCKS AND THE TIME OF GRAFTING PROCEDURE ON THE EFFICIENCY OF PROPAGATION BY GRAFTING TWO CULTIVARS OF MOUNTAIN PINE (Pinus mugo Turra) AND ESTIMATION OF CHLOROPLAST PIGMENTS LEVEL IN THE NEEDLES

2020 ◽  
Vol 19 (2) ◽  
pp. 75-85
Author(s):  
Sławomir Świerczyński ◽  
Marcin Kolasiński ◽  
Aleksander Stachowiak ◽  
Magdalena Rybus-Zając
Keyword(s):  
Pinus Sylvestris ◽  
Pinus Contorta ◽  
Experimental Studies ◽  
Pinus Nigra ◽  
Pinus Mugo ◽  
Chloroplast Pigments ◽  
Mountain Pine ◽  
Pine Trees ◽  
Graft Success ◽  
Grafting Procedure

The experimental studies were conducted from 2015–2017 years in two cycles. The aim of the research was to determine a better grafting time and a choice of an appropriate rootstock for the propagation of two cultivars of mountain pine (Pinus mugo Turra). The influence of the grafted cultivar and rootstock used on the level of chloroplast pigments in the needles was also checked. The studies concerned two cultivars of mountain pine (Pinus mugo) ‘Grześ’ and ‘Zundert’, which were grafted on four different rootstocks: Pinus contorta (Dougl. ex Loud.), Pinus nigra (Arn.), Pinus sylvestris (L.) and Pinus mugo subsp. uncinata (Ramond Domin) in two dates: 20 January and 15 March. The highest percentage of graft success was obtained for the two cultivars on Pinus uncinata and Pinus contorta rootstocks. A later term of grafting procedure affected bigger effectiveness of grafting of the two studied cultivars, except for the graft success on Pinus sylvestris rootstock. The highest increments of side shoots and lengths of main stems for ‘Grześ’ cultivar were obtained on Pinus nigra, and for ‘Zundert’ the influence of the rootstock on the above mentioned parameters was not evident. No significant differences in the number of increments in the first and second year of studies were observed. The highest level of chlorophyll A and B was found in the needles of ‘Grześ’ cultivar, independently from the rootstock used. Among tested rootstocks, only Pinus nigra had a significant impact on a higher content of chlorophyll B in the needles of the studied cultivars of mountain pine trees.

Species, elevation, and diameter affect whitebark pine and lodgepole pine stored resources in the sapwood and phloem: implications for bark beetle outbreaks

2014 ◽  
Vol 44 (11) ◽  
pp. 1312-1319 ◽  
Author(s):  
Eleanor C. Lahr ◽  
Anna Sala
Keyword(s):  
Nutritional Quality ◽  
Pinus Contorta ◽  
Mountain Pine Beetle ◽  
Lodgepole Pine ◽  
Large Diameter ◽  
Small Diameter ◽  
Whitebark Pine ◽  
Mountain Pine ◽  
Pine Trees ◽  
Lodgepole Pines

Stored resources in trees reflect physiological and environmental variables and affect life history traits, including growth, reproduction, resistance to abiotic stress, and defense. However, less attention has been paid to the fact that stored resources also determine tissue nutritional quality and may have direct consequences for the success of herbivores and pathogens. Here, we investigated whether stored resources differed between two hosts of the mountain pine beetle (Dendroctonus ponderosae Hopkins, 1902): lodgepole pine (Pinus contorta Douglas ex. Loudon), a common host, and whitebark pine (Pinus albicaulis Engelmann), a more naïve host that grows at higher altitudes. Phloem and sapwood were sampled in small- and large-diameter trees at two elevations, and nitrogen, phosphorus, nonstructural carbohydrates, and lipids were measured. We found that concentrations of stored resources increased with elevation and tree diameter for both species and that whitebark pine had thicker phloem than lodgepole pine. Overall, stored resources were higher in whitebark pine such that small-diameter whitebark pine trees often had resource concentrations higher than large-diameter lodgepole pines. These results suggest that whitebark pine is of higher nutritional quality than lodgepole pine, which could have implications for the current expansion of mountain pine beetles into higher altitude and latitude forests in response to climate warming.

A New Formulation and Reduced Rates of Carbary for Protecting Lodgepole Pine from Mountain Pine Beetle Attack

1987 ◽  
Vol 2 (4) ◽  
pp. 114-116 ◽  
Author(s):  
Patrick J. Shea ◽  
Mark McGregor
Keyword(s):  
Pinus Contorta ◽  
Large Scale ◽  
Mountain Pine Beetle ◽  
Lodgepole Pine ◽  
Mountain Pine ◽  
Pine Beetle ◽  
Pine Trees ◽  
Large Scale Field ◽  
Lodgepole Pines ◽  
New Formulation

Abstract A large-scale field experiment was conducted on the Flathead National Forest, Montana, to evaluate the efficacy of 0.5%, 1.0%, and 2.0% formulations of Sevimol® and Sevin brand XLR® for protecting individual lodgepole pines (Pinus contorta var. latifolia Engelm.) from attack by mountain pine beetles (Dendroctonus ponderosae Hopk.). All concentrations and formulations were highly effective (>95%) in protecting lodgepole pine trees from lethal attack by mountain pine beetle for 1 year, and the 1% and 2% concentrations were effective (>90%) for 2 years. West. J. Appl. For. 2(4):114-116, October 1987

Microthyrium pinophyllum. [Descriptions of Fungi and Bacteria].

2007 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
New York ◽  
Cryptomeria Japonica ◽  
Pinus Contorta ◽  
Conservation Status ◽  
Pinus Nigra ◽  
Abies Lasiocarpa ◽  
Pinus Mugo ◽  
Pinus Roxburghii ◽  
Diagnostic Features ◽  
Chamaecyparis Lawsoniana

Abstract A description is provided for Microthyrium pinophyllum, which are found on dead pine needles. Details are given of its hosts (Abies lasiocarpa, Cedrus libani, Chamaecyparis lawsoniana, Cryptomeria japonica, Cupressocyparis leylandii, Cupressus lawsoniana, Juniperus communis, Picea sp., Pinus austriaca, Pinus contorta, Pinus lambertiana, Pinus leucodermis, Pinus mugo, Pinus nigra, Pinus radiata, Pinus roxburghii, Pinus sylvestris, Pinus thunbergiana [P. thunbergii] and Pinus wallichiana), geographical distribution (USA (California, New York and Pennsylvania), Brazil, Chile, India (Himachal Pradesh and Uttarakhand), Austria, Czech Republic, Irish Republic, Germany, UK, Greece, Portugal (Azores) and Sweden), transmission, diagnostic features and conservation status.

ЧИСЛА ХРОМОСОМ ВИДОВ PINACEAE В БОЛГАРИИ, "БОТАНИЧЕСКИЙ ЖУРНАЛ"

2012 ◽  
pp. 1238a-1241 ◽  
Author(s):  
А.В. ПИМЕНОВ ◽  
Т.С. СЕДЕЛЬНИКОВА ◽  
А.Н. ТАШЕВ
Keyword(s):  
Picea Abies ◽  
Pinus Sylvestris ◽  
Pinus Nigra ◽  
Pinus Mugo

Приведены числа хромосом и спектр хромосомных перестроек у представителей сем. Pinaceae: Picea abies, Pinus heldreichii, Pinus mugo, Pinus nigra, Pinus sylvestris, произрастающих в Болгарии. У Picea abies впервые для вида выявлены добавочные хромосомы.

scholarly journals Identification and Status of the Introduced Black Pine, Pinus nigra, and Mugo Pine, Pinus mugo, in Ontario

2005 ◽  
Vol 119 (2) ◽  
pp. 224 ◽  
Author(s):  
Paul M. Catling
Keyword(s):  
Pinus Sylvestris ◽  
Native Species ◽  
Negative Impact ◽  
Substantial Reduction ◽  
Pinus Nigra ◽  
Black Pine ◽  
Pinus Mugo ◽  
Natural Habitats ◽  
Southern Ontario ◽  
Impact On Biodiversity

Recent reference texts and other sources are contradictory regarding the spread of Pinus nigra and Pinus mugo from cultivation in Ontario. Both species have reproduced from plantings along roadsides but neither has been observed to occupy habitats in Ontario to the substantial reduction or exclusion of native species, or to substantially invade natural habitats. The more widely planted Black Pine has been recorded spreading at 24 localities throughout the eastern part of southern Ontario. Mugo Pine is reported spreading at 18 locations. Although evidently much less aggressive than Scots Pine (Pinus sylvestris), both Black and Mugo pines have a potential for negative impact on biodiversity in dry, rocky or sandy habitats, especially in connection with extensive plantings. A key for the identification of two-needle pines is included. Both P. nigra and P. mugo are highly variable and reported to hybridize extensively with other species.

PRODUCTION OF PINE RESIN AND ITS EFFECT ON SURVIVAL OF RHYACIONIA BUOLIANA (SCHIFF.) (LEPIDOPTERA:OLETHREUTIDAE)

1960 ◽  
Vol 38 (1) ◽  
pp. 121-130 ◽  
Author(s):  
P. Harris
Keyword(s):  
Pinus Sylvestris ◽  
Pinus Contorta ◽  
Pinus Nigra ◽  
Summer Temperature ◽  
Initial Attack ◽  
Pine Resin ◽  
Warm Summer ◽  
Resin Canals ◽  
Short Days

The survival of Rhyacionia buoliana (Schiff.) larvae on Pinus sylvestris L. is related to the amount of resin encountered during the initial attack on the buds, the larvae being unable to establish themselves in very resinous buds. The resin canals in the buds are developed in response to short days at the end of the summer while the development of the moth is associated with summer temperature. Thus more larvae survive in a warm summer than a cool one as they attack the buds before there is a well-developed resin protection. Also fewer larvae survive on the very resinous Pinus nigra Arn. than on P. sylvestris. However, the best survival was found on Pinus contorta Doug., which also was more resinous than P. sylvestris.

Forest structure altered by mountain pine beetle outbreaks affects subsequent attack in a Wyoming lodgepole pine forest, USA

2011 ◽  
Vol 41 (12) ◽  
pp. 2403-2412 ◽  
Author(s):  
Daniel M. Kashian ◽  
Rebecca M. Jackson ◽  
Heather D. Lyons
Keyword(s):  
Pinus Contorta ◽  
Mountain Pine Beetle ◽  
Stand Structure ◽  
Lodgepole Pine ◽  
Climate Change Scenarios ◽  
Cone Production ◽  
Mountain Pine ◽  
Large Trees ◽  
Pine Beetle ◽  
The 1960S

Extensive outbreaks of the mountain pine beetle ( Dendroctonus ponderosae Hopkins) will alter the structure of many stands that will likely be attacked again before experiencing a stand-replacing fire. We examined a stand of lodgepole pine ( Pinus contorta var. latifolia Engelm. ex S. Watson) in Grand Teton National Park currently experiencing a moderate-level outbreak and previously attacked by mountain pine beetle in the 1960s. Consistent with published studies, tree diameter was the main predictor of beetle attack on a given tree, large trees were preferentially attacked, and tree vigor, age, and cone production were unimportant variables for beetle attack at epidemic levels. Small trees killed in the stand were killed based mainly on their proximity to large trees and were likely spatially aggregated with large trees as a result of the previous outbreak. We concluded that the driving factors of beetle attack and their spatial patterns are consistent across outbreak severities but that stand structure altered by the previous outbreak had implications for the current outbreaks in the same location. This study should catalyze additional research that examines how beetle-altered stand structure affects future outbreaks — an important priority for predicting their impacts under climate change scenarios that project increases in outbreak frequency and extent.

scholarly journals Scots pine (Pinus sylvestris) dynamics in the Welsh Marches during the mid to late-Holocene

The Holocene ◽  
2021 ◽  
pp. 095968362199465
Author(s):  
Dael Sassoon ◽  
William J Fletcher ◽  
Alastair Hotchkiss ◽  
Fern Owen ◽  
Liting Feng
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Late Holocene ◽  
British Isles ◽  
Loss On Ignition ◽  
Peat Core ◽  
New Information ◽  
Pine Trees ◽  
Pollen Records

Around 4000 cal yr BP, Scots pine ( Pinus sylvestris) suffered a widespread demise across the British Isles. This paper presents new information about P. sylvestris populations found in the Welsh Marches (western central Britain), for which the long-term history and origins are poorly known. Two new pollen records were produced from the Lin Can Moss ombrotrophic bog (LM18) and the Breidden Hill pond (BH18). The LM18 peat core is supported by loss-on-ignition, humification analysis and radiocarbon dating. Lead concentrations were used to provide an estimated timeframe for the recent BH18 record. In contrast to many other Holocene pollen records from the British Isles, analysis of LM18 reveals that Scots pine grains were deposited continuously between c. 6900–300 cal yr BP, at frequencies of 0.3–5.4%. It is possible that individual Scots pine trees persisted through the wider demise on thin soils of steep drought-prone crags of hills or the fringes of lowland bogs in the Welsh Marches. At BH18, the record indicates a transition from broadleaved to mixed woodland, including conifer species introduced around AD 1850 including Picea and Pinus. The insights from BH18 suggest that the current populations may largely be the result of planting. Comparison of the LM18 findings with other regional pollen records highlights consistent patterns, including a Mid-Holocene maximum (ca. 7000 cal yr BP), long-term persistence at low pollen percentages and a Late-Holocene minimum (ca. 3000 cal yr BP). These distinctive trends encourage further studies on refugial areas for Scots pine in this region and elsewhere.

Sign in / Sign up

Export Citation Format

Share Document