A pot experiment was carried out on during the two successive seasons of 2011 and 2012 at Ornamen... more A pot experiment was carried out on during the two successive seasons of 2011 and 2012 at Ornamental Plants Research Branch, Antoniades Botanical Gardens, Alex, Egypt, to evaluate the effect of different amino acids mixture concentrations (0, 1.0, 1.5 and 2 ml/l) as foliar application on growth, flowering, bulbs production as well as some chemical constituents of two Longiflorum-Asiatic lily (L.A) Hybrids namely., 'Rubino' and 'Red Alert' The results revealed that all studied vegetative growth parameters were significantly affected by amino acid treatments. Spraying the plants with 900 mg/l amino acid gave the highest significant records of plant height, leaf number, fresh and dry weights of leaves in both seasons. The "Red Alert" cultivar showed higher significant response than "Rubino" cultivar for the vegetative growth parameters of plant height, leaf number/plant, and leaf area. Whereas, the "Rubino" cultivar gave higher significant ...
The present study was designed to study the effect of light intensity, mineral fertilizer rates o... more The present study was designed to study the effect of light intensity, mineral fertilizer rates of NPK (19:19:19) at 0.0, 1.0, 2.0 and 3.0 g / pot and their combined effect on growth, flowering and chemical composition of leaves and rhizomes of Cyperus papyrus, L. plants. The experiment was carried out during 2003 and 2004 growing seasons at Antoniades Research Branch Hort. Res., Instit. Alex., Egypt. The results indicated that planting Cyperus papyrus,L. under shading condition with light intensity of 450-500 lux significantly reduced vegetative growth and inhibited flowering with little effect for fertilizer rates on vegetative growth and chemical composition of leaves and rhizomes. On the other hand, planting Cyperus papyrus, L. under full sun light condition (open field) with applying 2 g/ pot mineral NPK monthly during the growing season, improved vegetative growth and flowering parameters ( plant height, number of stems per rhizome, stem length, total stem fresh weight, leaf length and width, total leaf fresh weight/ rhizome , number of days to flowering , number of spiklets per inflorescence, inflorescence fresh weight and leaf and rhizome chemical composition parameters ( total chlorophylls content, total carbohydrates content, N, P and K contents). In general, full sun light condition and fertilizing the plants with 2 g / pot mineral N,P and K
This work was carried out during two successive seasons of 2003 and 2004 at Antoniades Research B... more This work was carried out during two successive seasons of 2003 and 2004 at Antoniades Research Branch, Hort. Res. Inst., Alex., Egypt to investigate the effect of different growing media (sand + composted leaves (3:1 v/v), clay + composted leaves (3:1 v/v) and sand + clay + composted leaves (1.5:1.5:1 v/v/v)) and three rates of irrigation (250, 500 or 750 cm 3 / plant) on the growth and flowering of Cyperus papyrus,L. plants. The obtained results can be summarized as follows; using the different growing media had no significant effect on the most of vegetative growth characteristics, but it had significant effect on the most of flowering parameters, rhizome productivity, total chlorophylls content in leaves and total carbohydrates in rhizome in both seasons. The irrigation rates at 500 cm 3 / plant had significant effect on growth, flowering and rhizome production; on the other hand, the highest level of irrigation of 750 cm 3 was the best treatment for rhizome fresh weight, root dry weight, and chemical composition of leaves and rhizomes. Using irrigation rates at 500 or 750 cm 3 for plants grown in sand + composted leaves gave the maximum beneficial effect on the vegetative growth characteristics such as: plant height, stem length, stem fresh weight, leaf length, number and leaves fresh weight / rhizome during the two seasons. Applying irrigation rates at 500 cm 3 with growing media of sand + composted leaves gave the highest reduction for the time required to flowering and the maximum fresh weight of inflorescence. The highest rate of irrigation (750 cm 3 ) with growing medium composed of clay + composted leaves produced the maximum increase in the fresh weight of rhizome and dry weight of roots. The highest significant increase in the total chlorophylls (a+b) in fresh leaves and total carbohydrates in dried rhizomes were obtained by using the highest rate of irrigation (750 cm 3 ) with the growing medium of sand + clay + composted leaves (1.5:1.5:1 v/v/v) in both seasons. It can be recommended that producing high quality papyrus plants for different decorative purposes in landscaping can be accomplished by growing papyrus plants in the mixture of sand and composted (3:1 v/v) as the best growing medium and irrigation with the rate of 500 cm 3 /plant daily.
ABSTRACT
A pot experiment was carried out on during the two successive seasons of 2011 and 2012 a... more ABSTRACT A pot experiment was carried out on during the two successive seasons of 2011 and 2012 at Ornamental Plants Research Branch, Antoniades Botanical Gardens, Alex, Egypt, to evaluate the effect of different amino acids mixture concentrations (0, 1.0, 1.5 and 2 ml/l) as foliar application on growth, flowering, bulbs production as well as some chemical constituents of two Longiflorum-Asiatic lily (L.A) Hybrids namely., 'Rubino' and 'Red Alert' The results revealed that all studied vegetative growth parameters weresignificantly affected by amino acid treatments. Spraying the plants with 900 mg/l amino acid gave the highest significant records of plant height, leaf number, fresh and dry weights of leaves in both seasons. The "Red Alert" cultivar showed higher significant response than "Rubino" cultivar for the vegetative growth parameters of plant height, leaf number/plant, and leaf area. Whereas, the "Rubino" cultivar gave higher significant records with respect to leaf fresh weight. As for the "Rubino" ,the results indicated that foliar spray with 2 ml/l amino acid gave the highest significant records in fresh and dry weight of leaves. While applying the aforementioned treatment on "Red Alert" cultivar resulted in the highest records for plant height, leaf number/plant and leaf area. Spraying the plants with the highest concentration (2 ml/l) gave the highest significant values of flowering duration, petiole length and flower fresh and dry weights as well as advanced the flowering compared to the control. The "Rubino" cultivar gave higher significant records than the "Red Alert" cultivar in spike length, petiole length, flower fresh and dry weights and flower bud length, while the "Red Alert" cultivar gave higher significant records in number of flowers, flowering duration and flower diameter as well as advanced the flowering. The results revealed that spraying the plants with the highest level of amino acid (2 ml/l) resulted in the highest significant records in flowering duration, flower diameter and flower fresh and dry weights for both of lilium cultivars. All the studiedbulb parameters (bulb circumference and fresh and dry weights of bulbs) significantly affected as a result of spraying with amino acid treatments compared to the control. The results revealed that foliar application with the highest level of amino acid (2 ml/l) gave the best significant records for bulb circumference and fresh and dry weights of bulbs. The "Red Alert" cultivar gave higher significant records than "Rubino" cultivar in bulb circumference and fresh and dry weights of bulbs. Spraying the plants with 2 ml/l amino acid resulted in the highest significant records in all of the studied bulb parameters for both lilium cultivars. The amino acid treatments caused significant increases in leaf chlorophyll (a and b), leaf total carbohydrates and leaf NPK contents. The highest significant records, in the previously mentioned parameters, were observed due to foliar application with 2 ml/l amino acid for both of the studied cultivars.
A pot experiment was carried out on during the two successive seasons of 2011 and 2012 at Ornamen... more A pot experiment was carried out on during the two successive seasons of 2011 and 2012 at Ornamental Plants Research Branch, Antoniades Botanical Gardens, Alex, Egypt, to evaluate the effect of different amino acids mixture concentrations (0, 1.0, 1.5 and 2 ml/l) as foliar application on growth, flowering, bulbs production as well as some chemical constituents of two Longiflorum-Asiatic lily (L.A) Hybrids namely., 'Rubino' and 'Red Alert' The results revealed that all studied vegetative growth parameters were significantly affected by amino acid treatments. Spraying the plants with 900 mg/l amino acid gave the highest significant records of plant height, leaf number, fresh and dry weights of leaves in both seasons. The "Red Alert" cultivar showed higher significant response than "Rubino" cultivar for the vegetative growth parameters of plant height, leaf number/plant, and leaf area. Whereas, the "Rubino" cultivar gave higher significant ...
The present study was designed to study the effect of light intensity, mineral fertilizer rates o... more The present study was designed to study the effect of light intensity, mineral fertilizer rates of NPK (19:19:19) at 0.0, 1.0, 2.0 and 3.0 g / pot and their combined effect on growth, flowering and chemical composition of leaves and rhizomes of Cyperus papyrus, L. plants. The experiment was carried out during 2003 and 2004 growing seasons at Antoniades Research Branch Hort. Res., Instit. Alex., Egypt. The results indicated that planting Cyperus papyrus,L. under shading condition with light intensity of 450-500 lux significantly reduced vegetative growth and inhibited flowering with little effect for fertilizer rates on vegetative growth and chemical composition of leaves and rhizomes. On the other hand, planting Cyperus papyrus, L. under full sun light condition (open field) with applying 2 g/ pot mineral NPK monthly during the growing season, improved vegetative growth and flowering parameters ( plant height, number of stems per rhizome, stem length, total stem fresh weight, leaf length and width, total leaf fresh weight/ rhizome , number of days to flowering , number of spiklets per inflorescence, inflorescence fresh weight and leaf and rhizome chemical composition parameters ( total chlorophylls content, total carbohydrates content, N, P and K contents). In general, full sun light condition and fertilizing the plants with 2 g / pot mineral N,P and K
This work was carried out during two successive seasons of 2003 and 2004 at Antoniades Research B... more This work was carried out during two successive seasons of 2003 and 2004 at Antoniades Research Branch, Hort. Res. Inst., Alex., Egypt to investigate the effect of different growing media (sand + composted leaves (3:1 v/v), clay + composted leaves (3:1 v/v) and sand + clay + composted leaves (1.5:1.5:1 v/v/v)) and three rates of irrigation (250, 500 or 750 cm 3 / plant) on the growth and flowering of Cyperus papyrus,L. plants. The obtained results can be summarized as follows; using the different growing media had no significant effect on the most of vegetative growth characteristics, but it had significant effect on the most of flowering parameters, rhizome productivity, total chlorophylls content in leaves and total carbohydrates in rhizome in both seasons. The irrigation rates at 500 cm 3 / plant had significant effect on growth, flowering and rhizome production; on the other hand, the highest level of irrigation of 750 cm 3 was the best treatment for rhizome fresh weight, root dry weight, and chemical composition of leaves and rhizomes. Using irrigation rates at 500 or 750 cm 3 for plants grown in sand + composted leaves gave the maximum beneficial effect on the vegetative growth characteristics such as: plant height, stem length, stem fresh weight, leaf length, number and leaves fresh weight / rhizome during the two seasons. Applying irrigation rates at 500 cm 3 with growing media of sand + composted leaves gave the highest reduction for the time required to flowering and the maximum fresh weight of inflorescence. The highest rate of irrigation (750 cm 3 ) with growing medium composed of clay + composted leaves produced the maximum increase in the fresh weight of rhizome and dry weight of roots. The highest significant increase in the total chlorophylls (a+b) in fresh leaves and total carbohydrates in dried rhizomes were obtained by using the highest rate of irrigation (750 cm 3 ) with the growing medium of sand + clay + composted leaves (1.5:1.5:1 v/v/v) in both seasons. It can be recommended that producing high quality papyrus plants for different decorative purposes in landscaping can be accomplished by growing papyrus plants in the mixture of sand and composted (3:1 v/v) as the best growing medium and irrigation with the rate of 500 cm 3 /plant daily.
ABSTRACT
A pot experiment was carried out on during the two successive seasons of 2011 and 2012 a... more ABSTRACT A pot experiment was carried out on during the two successive seasons of 2011 and 2012 at Ornamental Plants Research Branch, Antoniades Botanical Gardens, Alex, Egypt, to evaluate the effect of different amino acids mixture concentrations (0, 1.0, 1.5 and 2 ml/l) as foliar application on growth, flowering, bulbs production as well as some chemical constituents of two Longiflorum-Asiatic lily (L.A) Hybrids namely., 'Rubino' and 'Red Alert' The results revealed that all studied vegetative growth parameters weresignificantly affected by amino acid treatments. Spraying the plants with 900 mg/l amino acid gave the highest significant records of plant height, leaf number, fresh and dry weights of leaves in both seasons. The "Red Alert" cultivar showed higher significant response than "Rubino" cultivar for the vegetative growth parameters of plant height, leaf number/plant, and leaf area. Whereas, the "Rubino" cultivar gave higher significant records with respect to leaf fresh weight. As for the "Rubino" ,the results indicated that foliar spray with 2 ml/l amino acid gave the highest significant records in fresh and dry weight of leaves. While applying the aforementioned treatment on "Red Alert" cultivar resulted in the highest records for plant height, leaf number/plant and leaf area. Spraying the plants with the highest concentration (2 ml/l) gave the highest significant values of flowering duration, petiole length and flower fresh and dry weights as well as advanced the flowering compared to the control. The "Rubino" cultivar gave higher significant records than the "Red Alert" cultivar in spike length, petiole length, flower fresh and dry weights and flower bud length, while the "Red Alert" cultivar gave higher significant records in number of flowers, flowering duration and flower diameter as well as advanced the flowering. The results revealed that spraying the plants with the highest level of amino acid (2 ml/l) resulted in the highest significant records in flowering duration, flower diameter and flower fresh and dry weights for both of lilium cultivars. All the studiedbulb parameters (bulb circumference and fresh and dry weights of bulbs) significantly affected as a result of spraying with amino acid treatments compared to the control. The results revealed that foliar application with the highest level of amino acid (2 ml/l) gave the best significant records for bulb circumference and fresh and dry weights of bulbs. The "Red Alert" cultivar gave higher significant records than "Rubino" cultivar in bulb circumference and fresh and dry weights of bulbs. Spraying the plants with 2 ml/l amino acid resulted in the highest significant records in all of the studied bulb parameters for both lilium cultivars. The amino acid treatments caused significant increases in leaf chlorophyll (a and b), leaf total carbohydrates and leaf NPK contents. The highest significant records, in the previously mentioned parameters, were observed due to foliar application with 2 ml/l amino acid for both of the studied cultivars.
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Papers by Assem Elnaggar
A pot experiment was carried out on during the two successive seasons of 2011 and 2012 at Ornamental Plants
Research Branch, Antoniades Botanical Gardens, Alex, Egypt, to evaluate the effect of different amino acids mixture
concentrations (0, 1.0, 1.5 and 2 ml/l) as foliar application on growth, flowering, bulbs production as well as some
chemical constituents of two Longiflorum-Asiatic lily (L.A) Hybrids namely., 'Rubino' and 'Red Alert' The results
revealed that all studied vegetative growth parameters weresignificantly affected by amino acid treatments. Spraying the
plants with 900 mg/l amino acid gave the highest significant records of plant height, leaf number, fresh and dry weights of
leaves in both seasons. The "Red Alert" cultivar showed higher significant response than "Rubino" cultivar for the
vegetative growth parameters of plant height, leaf number/plant, and leaf area. Whereas, the "Rubino" cultivar gave higher
significant records with respect to leaf fresh weight. As for the "Rubino" ,the results indicated that foliar spray with 2 ml/l
amino acid gave the highest significant records in fresh and dry weight of leaves. While applying the aforementioned
treatment on "Red Alert" cultivar resulted in the highest records for plant height, leaf number/plant and leaf area. Spraying
the plants with the highest concentration (2 ml/l) gave the highest significant values of flowering duration, petiole length
and flower fresh and dry weights as well as advanced the flowering compared to the control. The "Rubino" cultivar gave
higher significant records than the "Red Alert" cultivar in spike length, petiole length, flower fresh and dry weights and
flower bud length, while the "Red Alert" cultivar gave higher significant records in number of flowers, flowering duration
and flower diameter as well as advanced the flowering. The results revealed that spraying the plants with the highest level
of amino acid (2 ml/l) resulted in the highest significant records in flowering duration, flower diameter and flower fresh
and dry weights for both of lilium cultivars. All the studiedbulb parameters (bulb circumference and fresh and dry
weights of bulbs) significantly affected as a result of spraying with amino acid treatments compared to the control. The
results revealed that foliar application with the highest level of amino acid (2 ml/l) gave the best significant records for
bulb circumference and fresh and dry weights of bulbs. The "Red Alert" cultivar gave higher significant records than
"Rubino" cultivar in bulb circumference and fresh and dry weights of bulbs. Spraying the plants with 2 ml/l amino acid
resulted in the highest significant records in all of the studied bulb parameters for both lilium cultivars. The amino acid
treatments caused significant increases in leaf chlorophyll (a and b), leaf total carbohydrates and leaf NPK contents. The
highest significant records, in the previously mentioned parameters, were observed due to foliar application with 2 ml/l
amino acid for both of the studied cultivars.
Key words: amino acids mixture, Amino Mix, Longiflorum-Asiatic (L.A) Hybrid Lily, foliar spray,
vegetative growth, flowering, chemical constituents,photosynthetic pigments, carbohydrates,
nitrogen, phosphorus, potassium.
A pot experiment was carried out on during the two successive seasons of 2011 and 2012 at Ornamental Plants
Research Branch, Antoniades Botanical Gardens, Alex, Egypt, to evaluate the effect of different amino acids mixture
concentrations (0, 1.0, 1.5 and 2 ml/l) as foliar application on growth, flowering, bulbs production as well as some
chemical constituents of two Longiflorum-Asiatic lily (L.A) Hybrids namely., 'Rubino' and 'Red Alert' The results
revealed that all studied vegetative growth parameters weresignificantly affected by amino acid treatments. Spraying the
plants with 900 mg/l amino acid gave the highest significant records of plant height, leaf number, fresh and dry weights of
leaves in both seasons. The "Red Alert" cultivar showed higher significant response than "Rubino" cultivar for the
vegetative growth parameters of plant height, leaf number/plant, and leaf area. Whereas, the "Rubino" cultivar gave higher
significant records with respect to leaf fresh weight. As for the "Rubino" ,the results indicated that foliar spray with 2 ml/l
amino acid gave the highest significant records in fresh and dry weight of leaves. While applying the aforementioned
treatment on "Red Alert" cultivar resulted in the highest records for plant height, leaf number/plant and leaf area. Spraying
the plants with the highest concentration (2 ml/l) gave the highest significant values of flowering duration, petiole length
and flower fresh and dry weights as well as advanced the flowering compared to the control. The "Rubino" cultivar gave
higher significant records than the "Red Alert" cultivar in spike length, petiole length, flower fresh and dry weights and
flower bud length, while the "Red Alert" cultivar gave higher significant records in number of flowers, flowering duration
and flower diameter as well as advanced the flowering. The results revealed that spraying the plants with the highest level
of amino acid (2 ml/l) resulted in the highest significant records in flowering duration, flower diameter and flower fresh
and dry weights for both of lilium cultivars. All the studiedbulb parameters (bulb circumference and fresh and dry
weights of bulbs) significantly affected as a result of spraying with amino acid treatments compared to the control. The
results revealed that foliar application with the highest level of amino acid (2 ml/l) gave the best significant records for
bulb circumference and fresh and dry weights of bulbs. The "Red Alert" cultivar gave higher significant records than
"Rubino" cultivar in bulb circumference and fresh and dry weights of bulbs. Spraying the plants with 2 ml/l amino acid
resulted in the highest significant records in all of the studied bulb parameters for both lilium cultivars. The amino acid
treatments caused significant increases in leaf chlorophyll (a and b), leaf total carbohydrates and leaf NPK contents. The
highest significant records, in the previously mentioned parameters, were observed due to foliar application with 2 ml/l
amino acid for both of the studied cultivars.
Key words: amino acids mixture, Amino Mix, Longiflorum-Asiatic (L.A) Hybrid Lily, foliar spray,
vegetative growth, flowering, chemical constituents,photosynthetic pigments, carbohydrates,
nitrogen, phosphorus, potassium.