About the heritability influence to the growth performance in Scots pine (<i>Pinus sylvestris</i> L.) progeny trials

Kurm, Malle; Kaur, Ursula; Maaten, Tiit; Kiviste, Andres

doi:10.2478/v10132-011-0057-y

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Among them is the Scots pine (Pinus sylvestris L.), which occupies a leading position in forestry not only in Russia, but also in many European countries [23][24][25]. In particular, information on this species is available for Germany [26], England [27], Sweden [28], Spain [29], Estonia [30,31], Finland [32], Poland [33], Belgium, and the Netherlands [34]. In studies of the polymorphism of Scots pine, the solution of the problems associated with plus selection, the establishment of seed orchards, and the increase of their effectiveness are the subjects of numerous scientific studies, conducted over long periods of time [35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Physiological Differentiation of the Plus Trees of Scots Pine: Seasonal Status of Xylem

Nn¹,

Vp²,

Na³

et al. 2018

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An important moment in the establishment of forestry seed orchards is the formation of their optimal composition, avoiding inbreeding depression in the outgoing seed material which occurs due to crossbreeding between closely related plus trees, the clones of which comprise the orchards. It is possible to minimize the negative effect of inbreeding by considering the hereditary aspect of the heterogeneous seed orchard material. The purpose of our work is to provide a comparative assessment of the formation and lignification of xylem in annual shoots of the plus trees of Scots pine. We investigated the formation and lignification of xylem in the annual shoots of the plus trees of Scots pine (Pinus sylvestris L.), found in natural forests in the Nizhny Novgorod region of the Russian Federation. Their vegetative progeny were cultivated in the clone archive stationed in the same region. Analyzing the one-type of the 1-year shoots, the time that the shoots were cut from the branches corresponded to the presence of plants in the characteristic phenological phases of seasonal development. A histochemical study of xylem was conducted, using the qualitative reactions of phloroglucinol to lignin. The power of xylem development was estimated by counting, in the radial direction, the cell rows from the core to the cambium in the microscope’s field of view. A significant differentiation of plus trees was revealed in a complex of signs characterizing the level of xylem development and the degree of xylem cell lignification in the tissues of annual shoots. Phenotypic differences in the physiological state of plus trees appeared given a leveled ecological background, indicating their genotypic determinism. This was confirmed by an analysis of variance. The share of the influence of differences between the proper plus trees was between 25.16%  ± 8.91% and 53.98%  ± 5.48% of the total phenotypic variance of the signs of the seasonal state of xylem. Factor analysis was used to reduce the number of considered indicators of xylem physiological state. The results allowed a cluster analysis to be carried out on the basis of the normalized values of the initial xylem features as well as the principal components derived from them. The association of plus trees was done on the basis of the similarity of the multidimensional estimates of xylem seasonal condition. The objects that were the most remote from the others were identified. This information provides a reasonable approach to the formation of an assortment of Scots pine seed orchards.

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Section: Introductionmentioning

confidence: 99%

Physiological Differentiation of the Plus Trees of Scots Pine: Seasonal Status of Xylem

Nn¹,

Vp²,

Na³

et al. 2018

Preprint

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Growth Differences in the Progeny Trials of the Scots Pine (Pinus sylvestris L.)

Kurm

Kiviste

Kaur

et al. 2009

Forestry Studies / Metsanduslikud Uurimused

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Kasvuomaduste erinevused hariliku männi (Pinus sylvestrisL.) järglaskatsetesThe progeny trials of Scots pine founded in Järvselja Training and Experimental Forest District in 1967 and 1968 by E. Pihelgas were analysed to estimate the dependence of progeny growth variables on mother tree or mother stand origin and age. Our progeny data set consists of 4622 DBH and 486 height measurements of the 41- and 42-year-old progeny trials. In 2008 and in 1995 all trees of the progeny trial were callipered and height of nine sample trees was measured on each plot. The analysis was carried out with the SAS/GLM procedure. It was proved that height of inland-originated progeny stands was significantly higher than height of progeny stands originated from maritime regions. Plus-tree progeny stands exceeded single tree and mixture-of-seeds progeny stands in height, diameter, basal area and volume.

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About the heritability influence to the growth performance in Scots pine (Pinus sylvestris L.) progeny trials

Cited by 2 publications

References 6 publications

Physiological Differentiation of the Plus Trees of Scots Pine: Seasonal Status of Xylem

Physiological Differentiation of the Plus Trees of Scots Pine: Seasonal Status of Xylem

Growth Differences in the Progeny Trials of the Scots Pine (Pinus sylvestris L.)

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