Correlations between the physical properties of silver fir seeds

Kaliniewicz, Z.; Mańkowski, Stefan; Tylek, Paweł; Krzysiak, Zbigniew; Peda, Waldemar

doi:10.31545/aagr/92616

Cited by 5 publications

(12 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absolute value of the coefficient of correlation between the physical attributes of spruce seeds and seed mass ranged from 0.045 to 0.920, where the angle of external friction was least correlated with the remaining attributes. Our findings, in addition to the results reported by Tylek [57] in a study of European beech (Fagus silvatica L.) seeds and by Kaliniewicz et al [58] in a study of fir seeds, suggest that the frictional properties of the seeds of forest trees and shrubs can be used as secondary rather than primary distinguishing features in seed separation processes. Based on the calculated values of correlation coefficients, terminal velocity should be the main parameter for separating spruce seeds into fractions, in particular in Jezo spruce, Lijiang spruce, and Schrenk's spruce seeds.…”

Section: Discussionsupporting

confidence: 85%

Physical Properties of Seeds of Eleven Spruce Species

Kaliniewicz

Żuk

Kusińska

2018

Forests

Self Cite

View full text Add to dashboard Cite

Information about the variations and correlations between the physical properties of seeds is essential for designing and modeling seed processing operations. The aim of this study was to determine the variations in the basic physical properties of seeds of selected spruce species and to identify the correlations between these attributes for the needs of the seed sorting processes. Terminal velocity, thickness, width, length, mass, and the angle of external friction were determined in the seeds of 11 spruce species. The measured parameters were used to calculate three aspect ratios (geometric mean diameter, sphericity index, and specific mass) of each seed. The average values of the basic physical properties of the analyzed seeds were determined in the following range: terminal velocity—5.25 to 8.34 m s−1, thickness—1.10 to 2.32 mm, width—1.43 to 3.19 mm, length—2.76 to 5.52 mm, the angle of external friction—23.1 to 30.0°, and mass—2.29 to 18.57 mg. The seeds of Jezo spruce and Meyer’s spruce were most similar to the seeds of other spruce species, whereas oriental spruce seeds differed most considerably from the remaining seeds. Our findings indicate that spruce seeds should be sorted primarily with the use of mesh sieves with longitudinal openings to obtain fractions with similar seed mass and to promote even germination.

show abstract

Section: Discussionsupporting

confidence: 85%

Physical Properties of Seeds of Eleven Spruce Species

Kaliniewicz

Żuk

Kusińska

2018

Forests

Self Cite

View full text Add to dashboard Cite

show abstract

“…The following fir species formed homogeneous groups in terms of terminal velocity: (1) balsam fir and subalpine fir, (2) grand fir, Japanese fir and Sierra white fir, (3) corkbark fir and Sierra white fir, (4) corkbark fir, Forrest's fir and Korean fir. The average terminal velocity of silver fir seeds was comparable to that presented by Kaliniewicz et al [28], and somewhat higher than that determined by Tylek [29,30] in seeds from southern Poland. Table 1.…”

Section: Experimental Materialssupporting

confidence: 83%

“…According to the literature [16,20,[35][36][37], seed mass is largely influenced by environmental conditions, genetic traits, tree age and, above all, geographic location. If the above factors are not taken into account, the average mass of silver fir seeds is somewhat lower than that reported by Tylek [38], Balian [20] and Gradečki-Poštenjak andĆelepirović [37], and similar to that noted by Skrzyszewska and Chłanda [13] and Kaliniewicz et al [28]. The average mass of Sierra white fir and subalpine fir seeds was somewhat lower (by approx.…”

Section: Firsupporting

confidence: 75%

“…Seeds characterized by similar values of the three basic dimensions were noted only in grand fir and Sierra white fir. The seeds of silver fir were somewhat larger than those analyzed by Tracz and Barzdajn [31], Tylek [30] and Kaliniewicz et al [28], but their dimensions were within the range of average values noted in Poland [16]. The evaluated seeds were similar to selected batches of Normann fir seeds in terms of length [14,32], and they were similar to pindrow fir seeds in terms of length and width [33].…”

Section: Experimental Materialsmentioning

confidence: 63%

“…The correlation coefficient was practically significant (minimum 0.4) in 28 cases. The dimensions and mass of the analyzed fir seeds were more strongly correlated than in Turkish fir seeds [14], Cilician fir and Nordmann fir seeds [32] and silver fir seeds [28].…”

Section: Correlations Between Seed Parametersmentioning

confidence: 99%

See 2 more Smart Citations

Physical Properties of Seeds of Eleven Fir Species

Kaliniewicz

Markowski

Anders

et al. 2019

Forests

Self Cite

View full text Add to dashboard Cite

Research Highlights: The correlations between seed mass and the remaining physical properties were determined in selected fir species, and a method for seed sorting was proposed to promote uniform germination and emergence. Background and Objectives: Information about the variation and correlations between the physical properties of seeds is essential for designing and modeling seed processing operations such as seed separation. The aim of this study was to determine the range of variation in the physical properties of seeds in eleven fir species, and to analyze the correlations between these parameters to improve the seed sorting process. Materials and Methods: Terminal velocity, thickness, width, length, the angle of external friction and mass were determined in the seeds of 11 fir species. The measured parameters were used to calculate the geometric mean diameter, three aspect ratios, sphericity index and the specific mass of each seed. Results: The seeds of Sierra white fir where most similar, whereas the seeds of balsam fir differed most considerably from the seeds of the remaining fir species. In the majority of the analyzed fir species, seed mass was most strongly correlated with terminal velocity, followed by thickness. Conclusions: Fir seeds should be sorted primarily with the use of mesh sieves with longitudinal openings to obtain fractions with similar seed mass and to eliminate the need for dewinging.

show abstract

Effects of electromagnetic waves on the moisture content of cones and the quality of extracted seeds in the Norway spruce and European larch

Aniszewska,

Gendek,

Tulska

et al. 2023

New Forests

View full text Add to dashboard Cite

The publication describes research investigating the effects of microwaves on seeds extracted from Norway spruce (Picea abies) and European larch (Larix decidua) cones. The objective of the conducted experiments was to determine how electromagnetic radiation influences the quality of those seeds. The study material was heated in a microwave-emitting device for 7 or 10 s at four power settings (800, 620, 440, or 130 W). The evaluated parameters included changes in the moisture content and weight of the studied cones following the applied time and power variants of exposure to microwaves, as well as the quality of the obtained seeds expressed in terms of germination energy (GE) and capacity (GC). Increasing the power of microwaves resulted in a greater decrease in the moisture content of cones, but it was not possible to find such a relationship for larch cones, especially for large cones. In most cases, the irradiation of larch cones with electromagnetic waves resulted in class I seeds, in contrast to spruce seeds, which could not be assigned to any class. Our findings show that for optimum results larch cones may be exposed to microwaves at a power not greater than 620 W and for a time not longer than 10 s. Spruce cones were found to be very sensitive to radiation; in their case no microwave treatment should be applied as it adversely affects seed viability.

show abstract

Correlations between the physical properties of silver fir seeds

Cited by 5 publications

References 0 publications

Physical Properties of Seeds of Eleven Spruce Species

Physical Properties of Seeds of Eleven Spruce Species

Physical Properties of Seeds of Eleven Fir Species

Effects of electromagnetic waves on the moisture content of cones and the quality of extracted seeds in the Norway spruce and European larch

Contact Info

Product

Resources

About