Subscribe Now Subscribe Today
Science Alert
 
FOLLOW US:     Facebook     Twitter
Blue
   
Curve Top
Asian Journal of Crop Science
  Year: 2014 | Volume: 6 | Issue: 2 | Page No.: 89-100
DOI: 10.3923/ajcs.2014.89.100
Effect of Planting Density and Gibberellic Acid on Quantitative and Qualitative Characteristics of Solidago canadensis “Tara” in Egypt
Amira R. Osman and Eman Sewedan

Abstract:
Demand on Solidago has been rising dramatically over the past few years. Solidago canadensis L.cv. “Tara” belongs to family Asteraceae and grows as wild flower in North America, Asia and Europe. It is widely used as a landscaping flowering plant, as an excellent cut flower arrangements and bouquets with high post harvest durability and as a dried flower. This study was carried out to determine the response of S. canadensis L.cv. "Tara" to five Gibberellic Acid (GA3) concentrations (control zero, 50, 100, 200 and 400 ppm) as foliar spray and two planting densities (16 and 32 plants m-2) and interactions between them in an attempt to increase its landscape value, its quality as a cut flower production for reaching to maximum export value and increase its offsets production value as a vegetative propagation method under Egyptian conditions. The results revealed that stem height, stem circumference, fresh and dry weight, total leaves area plant-1, inflorescence length, percentage inflorescence length stem-1, number of flowering branches inflorescencestem plant-1, flowering branches length inflorescence-1, vase life, total chlorophyll and carotene contents of leaves increased significantly by reducing planting density. While, significant delay from (120 to 125 days) in flowering occurred due to increasing planting density. Application of 200 ppm GA3 significantly increased stem height, inflorescence length, percentage inflorescence length stem-1 and flowering branches length inflorescence-1, while GA3 had no effect on flowering date. Application of 400 ppm GA3 significantly decreased stem circumference, fresh and dry weight, number of leaves plant-1, total leaves area plant-1, number of flowering branches inflorescencestem plant-1 and total chlorophyll. The plants treated by combination of GA3 at 100 ppm with 16 plants m-2 density recorded the best in terms of almost all characters studied. With respect to almost all characteristics, we can recommend that the best results were recorded in plants treated by combination GA3 at 100 ppm with 16 plants m-2.
 [Fulltext PDF]   [Fulltext HTML]   [XML: Abstract + References]   [References]   [View Citation]  [Report Citation]
How to cite this article:

Amira R. Osman and Eman Sewedan, 2014. Effect of Planting Density and Gibberellic Acid on Quantitative and Qualitative Characteristics of Solidago canadensis “Tara” in Egypt. Asian Journal of Crop Science, 6: 89-100.

DOI: 10.3923/ajcs.2014.89.100

URL: https://scialert.net/abstract/?doi=ajcs.2014.89.100

 
COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 

Curve Bottom