Allometry of early growth in selected and wild sources of white spruce, Picea glauca (Moench) Voss

Pike, Carolyn C.; Warren, James C.; Montgomery, Rebecca

doi:10.1007/s11056-015-9498-0

Cited by 4 publications

(3 citation statements)

References 36 publications

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“…The remaining seed parameters and indices were similar to those noted by Kaliniewicz et al [37,49,51]. The mass of the analyzed spruce seeds was similar to that of red spruce seeds from Ontario [22], Schrenk's spruce seeds from Tianshan Mountains [24], white spruce seeds from the Great Lakes region [52], and Morinda spruce seeds from Garhwal Himalaya [26]. White spruce seeds were similar to black spruce seeds [53] in terms of length and width.…”

Section: Discussionsupporting

confidence: 81%

Physical Properties of Seeds of Eleven Spruce Species

Kaliniewicz

Żuk

Kusińska

2018

Forests

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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.

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Section: Discussionsupporting

confidence: 81%

Physical Properties of Seeds of Eleven Spruce Species

Kaliniewicz

Żuk

Kusińska

2018

Forests

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“…The remaining seed parameters and indices were similar to those noted by Kaliniewicz et al [42,54,56]. The mass of the analyzed spruce seeds was similar to that of red spruce seeds from Ontario [27], Schrenk's spruce seeds from Tianshan Mountains [29], white spruce seeds from the Great Lakes region [57], and Morinda spruce seeds from Garhwal Himalaya [31]. White spruce seeds were similar to black spruce seeds [58] in terms of length and width.…”

Section: Discussionsupporting

confidence: 81%

Variations and Correlations between the Physical Properties of Seeds of Eleven Spruce Species

Kaliniewicz¹,

Żuk²,

Kusińska³

2018

Preprint

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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.

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“…Biomass reflects the ability of crops to use resources and environment (Walne and Reddy, 2022). The distribution of crop biomass in various organs is not only affected by crop factors, such as crop varieties, crop genetic characteristics, but also affected by environmental factors (Pike et al, 2015). This study (Figure 8) found that root biomass of the drought treatment group was significantly lower than that of the COS due to the thinner root system, which is consistent with the conclusion of Chen et al (2018): drought inhibits plant growth, root development and dry matter accumulation.…”

Section: Adaptive Ways Of Root Morphology Under Drought Stressmentioning

confidence: 99%

Adaptive pathway of summer maize under drought stress: Transformation of root morphology and water absorption law

Yan

Weng²,

Jing³

et al. 2022

Front. Earth Sci.

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The adaptability of crops reflects the ability to continue to grow in the changing environment. Its adaptability in adversity plays an important role in its own growth and development. The root system is the main organ for crops to absorb water and nutrients, it can adjust its own morphology, physiological, biochemical to improve its water absorption and thus adapt to drought stress. Previous studies mostly focused on the above ground part of crops, but less on the underground part of crops due to the complexity of root observation. In order to study the adaptability of summer maize under different drought conditions, taking “Denghai 618” as the experimental material, with prototype observation and micro root window as technical support, under the ventilation shed, two treatment groups of light drought (LD) and moderate drought (MD) and the same rehydration after drought are set, as well as the normal water supply for control inside the shed (CS) and Control outside the shed (COS). The changes of root morphology and the law of root water absorption under drought and Rehydration after different drought were analyzed. The results showed that: 1) Under drought stress, the root system of maize adapts to drought by thinning and increasing fine roots to improve root water absorption. Under the MD, the root adaptation to drought is more obvious: promoting root growth. Root biomass was no significant difference between the drought treatment group and the CS. The root biomass of the drought treatment group was significantly lower than that of the COS due to the thinner root system. 2) The total amount of root water absorption in the CS and COS increased steadily with the increase of days. In the drought treatment group, the root water absorption decreased with the increase of drought degree, that is, COS > CS > LD > MD. This study provides a reference for revealing the self-adaptive regulation mechanism of summer maize roots under drought conditions.

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Allometry of early growth in selected and wild sources of white spruce, Picea glauca (Moench) Voss

Cited by 4 publications

References 36 publications

Physical Properties of Seeds of Eleven Spruce Species

Physical Properties of Seeds of Eleven Spruce Species

Variations and Correlations between the Physical Properties of Seeds of Eleven Spruce Species

Adaptive pathway of summer maize under drought stress: Transformation of root morphology and water absorption law

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