Incorporation of radioactive products of photosynthesis into lignin and cellulose of Scots pine (Pinus sihestris L.) seedlings

Distribution of radioactive photosynthetic products as well as their utilization in biosynthesis of lignin and cellulose in one-year-old pine seedlings was investigated at different growth stages. It was found that time of metabolization and the rate of photosynthetic products incorporation into lignin and cellulose depends on the organ and -on the kind of polymer synthetized.

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Distribution of radioactive products of photosynthesis in Scots pine (Pinus sihestris L.) seedlings during the first vegetation season

Acta Societatis Botanicorum Poloniae ◽

10.5586/asbp.1973.042 ◽

2015 ◽

Vol 42 (4) ◽

pp. 541-553

Author(s):

Igor Góral

Keyword(s):

Scots Pine ◽

Growth Stage ◽

Growth Stages ◽

Vegetation Season ◽

Photosynthetic Products ◽

One Year ◽

Different Growth Stages ◽

Needle Growth

Dynamics of translocation and distribution of radioactive photosynthetic products in one year old pine (P. silvestris L.) seedlings was investigated at different growth stages. It was found that the utilization of photosynthetic products in particular organs depends greatly on the growth stage. Loses of photosynthetic products as a result of respiration were the smallest at the stage of intensive needle growth and the greatest at the stage of approaching dormancy.

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The effect of seed coat color grading on height of one-year-old container-grown Scots pine seedlings planted on post-fire site

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/226/1/012043 ◽

2019 ◽

Vol 226 ◽

pp. 012043 ◽

Cited By ~ 3

Author(s):

A I Novikov ◽

V Ivetić

Keyword(s):

Scots Pine ◽

Seed Coat ◽

Coat Color ◽

Seed Coat Color ◽

Color Grading ◽

Pine Seedlings ◽

One Year

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Pest status of the leafhopper Empoasca dolichi Paoli on groundnut (Arachis hypogaea L.) in the Zaria area of northern Nigeria

Plant Protection Science ◽

10.17221/2754-pps ◽

2010 ◽

Vol 41 (No. 4) ◽

pp. 158-164 ◽

Cited By ~ 1

Author(s):

E.A. Egwurube ◽

O. Ogunlana M ◽

C. Dike M ◽

I. Onu

Keyword(s):

Arachis Hypogaea ◽

Growth Stages ◽

Northern Nigeria ◽

Economic Injury Level ◽

Pest Status ◽

Growing Seasons ◽

Economic Injury ◽

One Year ◽

Empoasca Dolichi ◽

Different Growth Stages

Population studies and tests on the relationship between density and damage were conducted in 1999 to 2001 to determine the pest status of Empoasca dolichi on groundnut (Arachis hypogaea L.) in the Zaria area of northern Nigeria. Analyses showed that Empoasca numbers varied significantly from one year to another, and within each year the numbers of leafhoppers observed at the different growth stages of the plant were significantly different (P = 0.01). There was an inverse and highly significant relationship between the mean kernel yield and the Empoasca damage at the different growth stages of the plant. When natural population densities were plotted against economic injury level (EIL), the densities did not reach the EIL throughout the groundnut growing seasons. The insect was thus not an economic pest on groundnut in Zaria during the period of the study.

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Influence of toxic metal ions phenols in needles and roots, and on root respiration of Scots pine seedlings

Acta Societatis Botanicorum Poloniae ◽

10.5586/asbp.1994.005 ◽

2014 ◽

Vol 63 (1) ◽

pp. 29-35 ◽

Cited By ~ 14

Author(s):

Piotr Karolewski ◽

Marian J. Giertych

Keyword(s):

Phenolic Compounds ◽

Pinus Sylvestris ◽

Scots Pine ◽

Salt Concentration ◽

Root Respiration ◽

Dark Respiration ◽

Toxic Metal ◽

Plant Part ◽

Pine Seedlings ◽

One Year

Nitrates of aluminum, cadmium, manganese and lead cause changes in the content of phenolic compounds (o-dPh and TPh) in needles and roots, and in the rate of dark respiration (DR) of roots of one-year-old seedlings of Scots pine (Pinus sylvestris L.). The changes depend on the cation, the salt concentration used, and the analyzed plant part. The observed changes in the levels of phenolic compounds in needles and roots, and the rate of respiration in roots, indicate the following rank in toxicity of the studied metal cations: Mn < Al < Pb < Cd.

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