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CO2 enrichment and mycorrhizal effects on cutting growth and some physiological traits of cuttings during rooting

100%

Nowak J., Nowak J. S.

Acta Scientiarum Polonorum. Hortorum Cultus

2013

tom 12

nr 6

Propagation conditions of bedding plants can eliminate or reduce the possibility of AMF inoculation of the root system during greenhouse production. Due to the ability of AMF to increase plant growth the effects of AMF and CO₂ enrichment on rooting and some physiological traits of geranium and osteospermum cuttings were investigated. AMF and CO₂ enrichment increased leaf number and fresh and dry weights of osteospermum shoots. Mycorrhization also significantly increased the length and fresh and dry weights of osteospermum roots formed in CO₂ enriched atmosphere but it did not affect root system developed in ambient atmosphere. AMF increased the length and fresh weight of geranium roots, irrespectively of CO₂ concentration, and dry weight of roots in CO₂ enriched atmosphere. Transpiration and stomatal conductance values were higher in inoculated osteospermum at higher CO₂ concentration. Mycorrhization and CO₂ enrichment increased photosynthetic activity of garden geranium leaves and this effect was connected with the increased ratio of variable to maximum chlorophyll fluorescence (Fv/Fm).

The effect of nutrient solution concentration on mycorrhizal colonization of roots, growth and flowering of ivy geranium (Pelargonium hederaefolium hort. ‘Ville de Paris’) and garden geranium (Pelargonium hortorum L. H. BAILEY ‘Aquarello’)

88%

Nowak J.

Zeszyty Problemowe Postępów Nauk Rolniczych

2008

tom 525

The experiment was conducted to evaluate the effect of concentration of nutrient solution on root colonization with AMF, growth and flowering of ivy geranium (Pelargonium hederaefolium ‘Ville de Paris’) and garden geranium (Pelargonium hortomm ‘Aquarello’) cultivated on ebb-and-flow benches. Four concentrations of nutrient solution were applied: EC 1.0. 1.5, 2.0 i 3.0 mS‧cm⁻¹. The concentration of nutrient solution did not affect colonization of root system with AMF. The effect of concentration of nutrient solution and mycorrhization on fresh matter, shoot length and shoot number of ivy geranium was negligible. The earliest flowering was noted in plants fertilized at 3.0 mS‧cm⁻¹. These plants had also the greatest number of inflorescences. Garden geranium grown at mS‧cm⁻¹ obtained the highest fresh matter and the longest shoots. Mycorrhizal plants had lower fresh matter and shorter shoots than the non-mycorrhizal ones. Neither the concentration of nutrient solution nor mycorrhization did affect the flowering of garden geranium.

Ograniczanie wyników

1 Acta Scientiarum Polonorum. Hortorum Cultus

1 Zeszyty Problemowe Postępów Nauk Rolniczych

2 Nowak J.

1 Nowak J. S.

1 2013

1 2008

Wyniki wyszukiwania

CO2 enrichment and mycorrhizal effects on cutting growth and some physiological traits of cuttings during rooting

The effect of nutrient solution concentration on mycorrhizal colonization of roots, growth and flowering of ivy geranium (Pelargonium hederaefolium hort. ‘Ville de Paris’) and garden geranium (Pelargonium hortorum L. H. BAILEY ‘Aquarello’)