The Effect on Net Photosynthesis of Pedigree Selection for Low and High Rates of Photorespiration in Tobacco

0ion for rapid seedling emergence at 4°C had no effect on plant growth. Pollen selection at low temperature improved subsequent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4°C to that at 18/13equent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4/night) at 26 days after emergence, whereas selection for rapid seedling emergence at 4°C had no effect on plant growth. Pollen selection at low temperature improved subsequent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4°C to that at 18/13°C was higher in progenies derived from fertilisation at 10/2rature. The dry weight ratio of plants grown at 13/4/night) at 26 days after emergence, whereas selection for rapid seedling emergence at 4°C had no effect on plant growth. Pollen selection at low temperature improved subsequent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4°C to that at 18/13equent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4/night) at 26 days after emergence, whereas selection for rapid seedling emergence at 4°C had no effect on plant growth. Pollen selection at low temperature improved subsequent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4°C to that at 18/13°C was higher in progenies derived from fertilisation at 10/2°C than those from 18/13days after emergence, whereas selection for rapid seedling emergence at 4°C had no effect on plant growth. Pollen selection at low temperature improved subsequent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4°C to that at 18/13equent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4/night) at 26 days after emergence, whereas selection for rapid seedling emergence at 4°C had no effect on plant growth. Pollen selection at low temperature improved subsequent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4°C to that at 18/13°C was higher in progenies derived from fertilisation at 10/2rature. The dry weight ratio of plants grown at 13/4/night) at 26 days after emergence, whereas selection for rapid seedling emergence at 4°C had no effect on plant growth. Pollen selection at low temperature improved subsequent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4°C to that at 18/13equent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4/night) at 26 days after emergence, whereas selection for rapid seedling emergence at 4°C had no effect on plant growth. Pollen selection at low temperature improved subsequent plant growth at lowtemperature. The dry weight ratio of plants grown at 13/4°C to that at 18/13°C was higher in progenies derived from fertilisation at 10/2°C than those from 18/13°C fertilisation. The ability to use pollen selection in combination with pedigree selection for low potassium leakage should increase genetic gain of plant dry weight at low temperature in segregating populations.

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Early and Late Pedigree Selection for Seed Yield/Plant in Sesame (Sesamum indicum L.)

Assiut Journal of Agricultural Sciences ◽

10.21608/ajas.2014.3512 ◽

2014 ◽

Vol 45 (5) ◽

pp. 1-17

Keyword(s):

Seed Yield ◽

Sesamum Indicum ◽

Pedigree Selection ◽

Selection For

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Variability of physiological and growth characteristics of white willow (Salix alba L.) clones

Genetika ◽

10.2298/gensr0602145o ◽

2006 ◽

Vol 38 (2) ◽

pp. 145-152 ◽

Cited By ~ 1

Author(s):

Sasa Orlovic ◽

Slobodanka Pajevic ◽

Bojana Klasnja ◽

Zoran Galic ◽

Miroslav Markovic

Keyword(s):

Dark Respiration ◽

Net Photosynthesis ◽

Early Selection ◽

Salix Alba ◽

Coefficients Of Variation ◽

Adult Phase ◽

White Willow ◽

Growth Vigor ◽

Selection For ◽

Physiological Characters

The samples from field experiment on five clones of white willow (Salix alba L.) in the adult phase, was investigated as follows: net photosynthesis and dark respiration, content of photosynthetic pigments (chlorophylls a, b and carotenoids), number and size of stornata and elements of growth (tree diameters and heights). The aim of the research is to determine if there are any relations between these physiological characters and the elements of growth, i.e. if any of them can be utilized in the early selection for growth vigor. The results show that all the characters are characterized by low coefficients of variation, statistically highly significant differences and high coefficients of heritability in a broad sense. As for the net of photosynthesis, the number of stornata on the adaxial and abaxial sides of the leaf are in high correlation with the elements of growth, which indicates that they can be used in the early selection for growth vigor.

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