To determine the role of environmental and host genetic factors in shaping fungal endophyte communities we used culturing metabarcoding techniques to quantify taxa within healthy Scots pine (Pinus sylvestris) needles a 7-y old provenance-progeny trial replicated at three sites. Both methods revealed community ascomycete basidiomycete dominated by needle pathogen Lophodermium seditiosum. Differe...

Sphaeropsis sapinea Diplodia Pinus sylvestris S.

We examined the effects of structural and physiological acclimation on the photosynthetic efficiency of Scots pine (Pinus sylvestris L.) shoots. We estimated daily light interception (DLI) and photosynthesis (DPHOT) of a number of sample shoots situated at different positions in the canopy. Photosynthetic efficiency (epsilon) was defined as the ratio of DPHOT to the potential daily light interc...

Effects of varying the time of stem injection of gibberellin A4/7 (GA4/7) on male and female flowering in potted grafts of Pinus sylvestris L. in a greenhouse were monitored in two consecutive years. Flowering results for each application time were correlated with phenological characteristics and abiotic factors in an attempt to find reproducible indicators of the most effective time of GA4/7 t...

Although Pinus sylvestris L. is the most frequently analyzed wood species with respect to cutting forces in sawing experiments, the problem of prediction of reliable values of tangential FC and radial FN cutting forces for specific sawing conditions, according to the method employing a specific cutting resistance K (N·mm) and correction coefficients CR, C, C, CAP, CVC, CMC, CT, as expressed b...

ODC 232.318: 174.7-01.5.4 In this investigation the results o f germinability o f ten samples each o f Pinus silvestris and Picea abies seed by the indigo carmine and the x-ray contrast methods are compared with their germination values on Jacobsen apparatus. T w o dif ferent criteria, namely those o f Hao (1939) and Krzeszkiewicz (1939) were used for judging the gerrninability by the indigo ca...

The development of anatomical, hydraulic and biomechanical properties in Scots pine (Pinus sylvestris L.) stems aged 7 to 59 years was followed. The hydraulic diameter and length of tracheids increased with age to a maximum at 15 and 35 years, respectively. Number of tracheids per unit of sapwood area decreased with age to a minimum of 500-600 tracheids mm(-2). Variations in specific hydraulic ...

...................................................................................................................... ix

We present an operational method for estimating the amount of PAR intercepted by a coniferous shoot. Interception of PAR by a shoot is divided into three components: the amount of radiation coming from the sky, the transmission of radiation through the surrounding vegetation, and the shoot' s silhouette area facing the direction of the incoming radiation. All three components usually vary with ...