Effect of high temperature on flower development and morphology in carnation .
ABSTRACT
Carnation is one of the most important crop for cut flowers not only in Syria but all over the world .
The producers in Syria and in other countries are suffering during the seasons of hot temperature from dwarfing of the plants and the production of small flowers .
The work conducted here was to investigate the effect of high temperature on flower development and morphology .
The cultivar White Sim was used in the experiment with four treatments and four replicates for each. The treatments started when all the plants had initiated flowers . The control plants were kept under a night temperature of about 15 C , while the apical region of the plants in the treatments were heated either at the commencement of flower initiation for tow and four weeks or heated for two weeks at the appearance of flower buds.
Results showed that high night temperature hastened the rate of flower development , but reduced the flower size and floral stalk length .
Carnation producers in Syria are advised to monitor the night temperature during Summer , when the day – time temperature and light intensity are very high , to keep doors and ventilators open during the night time , to minimize the temperature , in order to be able to produce large flowers with long stalks .
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عفواً شادو إنتي حطيتي الموضوع الزراعي باسم عنوان ( قميص يوسف ) ............حاولي تغييرين الموضوع من زر Edit في أسفل موضوعك .