Phenotypic variation of generative signs of different reproductive types of Pseudotsuga menziesii (Mirb.) Franco in urban environment (in the forest-steppe zone)

Chekmeneva, Yu V.; Ткачев, В. В.; Krasnov, V. G.

doi:10.1088/1755-1315/226/1/012050

Cited by 2 publications

(2 citation statements)

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“…In addition, the variation in the morphological characteristics of the fruit, seed and seedling of Chrysophyllum rufum Mart., Contributed to the identification and delimitation of the species in its natural habitat (Lima et al, 2017). Thus, phenotypic variability has been observed in P. menziesii with a different one based on the morphological characteristics of the cones (Chekmeneva et al, 2019). Table 3 Own vectors of the first three main components (MC) generated by 15 seed morphological variables in 12 accessions of P. menziesii.…”

Section: Resultsmentioning

confidence: 99%

“…. Bonfil (1998) conducted an investigation with two Quercus species and observed that the size of the seed had a direct effect on survival, suggesting that the size of the seed correlates directly with the germination and growth of plants in some species forestry However, the regenerative capacity in natural ecosystems is also determined by a greater number of biotic and abiotic factors (Chekmeneva et al, 2019;Peters and Visscher, 2019). On the other hand, seeds with high germination rates can contribute to the development of natural forest management and regeneration plans (Jaouadi et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

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Morphological characterization of seeds and germination of Pseudotsuga menziesii (Mirb.) Franco (Pinaceae)

Ríos-Palma¹,

Contreras-Toledo

Pichardo-González

et al. 2019

JNAS

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Pseudotsuga menziesii (Mirb.) Franco is a species of economic and ecological importance for Mexico. Several actions have been implemented for its ex situ conservation. However, the lack of characterization data is a limiting factor in genebanks. In this study, morphological characteristics and seed germination traits were evaluated in 12 accessions of P. menziesii from Tlaxcala and Puebla. Fifteen seed variables, germination percentage (PG), days to germination (DG) and radicle growth (CR) were measured in 100 seeds (four replicas of 25 seeds each) per accession. A principal component analysis, a cluster analysis and the estimation of the relationship between seed variables and germination traits were performed. The variables that had largest influence on the distribution of morphological variation were: LA, ASC, AS and AA/AS. The accessions were distributed in five general groups according mainly to their geographical origin. For some accessions, PG and CR had a direct relationship with seed size variables. These results showed the presence of variation and the influence of seed morphology on the germination of the evaluated accessions.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Morphological characterization of seeds and germination of Pseudotsuga menziesii (Mirb.) Franco (Pinaceae)

Ríos-Palma¹,

Contreras-Toledo

Pichardo-González

et al. 2019

JNAS

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Condition assessment of species of the genus Pseudotsuga Carr in Voronezh in order to predict seed productivity in the urban environment

Chekmeneva

Dorofeeva

2020

IOP Conf. Ser.: Earth Environ. Sci.

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In the conditions of the Central Black Earth region, in the park plantations of the city of Voronezh, the categories of tree conditions and seed productivity of the genus Pseudotsuga Carr were compared. Estimated yield, linear parameters of cones and seeds. The average values and the amplitude of the variability of the morphometric parameters of cones and seeds are determined. It was shown that in urban conditions at different objects the variability of attributes increases and the category of condition worsens for trees that grow in close proximity to roads, and are also in a depressed state due to shadowing by neighboring trees. The possibility of phenotypic selection of trees for stability in an urban environment by the level of variability of the parameters of the generative sphere is considered. It was revealed that variability at the level of cultivated phytocenoses is weakly expressed than that of individual trees at the endogenous level. In this regard, selection requires a more in-depth study of the polymorphism of cones and seeds to identify correlative traits associated with tree productivity indices.

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Phenotypic variation of generative signs of different reproductive types of Pseudotsuga menziesii (Mirb.) Franco in urban environment (in the forest-steppe zone)

Cited by 2 publications

References 10 publications

Morphological characterization of seeds and germination of Pseudotsuga menziesii (Mirb.) Franco (Pinaceae)

Morphological characterization of seeds and germination of Pseudotsuga menziesii (Mirb.) Franco (Pinaceae)

Condition assessment of species of the genus Pseudotsuga Carr in Voronezh in order to predict seed productivity in the urban environment

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