Articles
Interspecific hybridization of Impatiens sp.
Article number
1334_5
Pages
37 – 46
Language
English
Abstract
Impatiens aurantiaca is limited in flower and leaf color variation.
This species is usually crossed with the New Guinea Impatiens (I. hawkeri Bull.) to obtain interspecific hybrids with more variation in flower color and leaf characters.
The objective of the current research was to increase color variation in interspecific hybrids of I. hawkeri crossed with Impatiens aurantiaca. Three different colors of I. hawkeri (female parents) were crossed with three different colors of I. aurantiaca (male parents). Fresh pollens from I. aurantiaca were applied when the stigmas of I. hawkeri were fully extended.
A total of nine populations were obtained from the crossing.
Results showed that the orange color of flowers from I. aurantiaca is a dominant character that is inherited by the progenies in the crossing.
The white-flowered progenies were only obtained when two white-flowered parents are crossed.
A wide variation of flower color is obtained when the red-colored parent is crossed with a white-colored plant.
Additionally, dark foliage is dominant over green foliage.
Most of the progenies obtained from the crossing were found to be sterile.
This species is usually crossed with the New Guinea Impatiens (I. hawkeri Bull.) to obtain interspecific hybrids with more variation in flower color and leaf characters.
The objective of the current research was to increase color variation in interspecific hybrids of I. hawkeri crossed with Impatiens aurantiaca. Three different colors of I. hawkeri (female parents) were crossed with three different colors of I. aurantiaca (male parents). Fresh pollens from I. aurantiaca were applied when the stigmas of I. hawkeri were fully extended.
A total of nine populations were obtained from the crossing.
Results showed that the orange color of flowers from I. aurantiaca is a dominant character that is inherited by the progenies in the crossing.
The white-flowered progenies were only obtained when two white-flowered parents are crossed.
A wide variation of flower color is obtained when the red-colored parent is crossed with a white-colored plant.
Additionally, dark foliage is dominant over green foliage.
Most of the progenies obtained from the crossing were found to be sterile.
Authors
R. Soehendi, S. Kartikaningrum, M. Wegadara, M.T. Ratule, M. Thamrin, B. Marwoto
Keywords
Impatiens sp., crossing, variation, flower, leaf color
Groups involved
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