In Vitro Preservation of Sugarcane Plantlets under Low Temperature
Keywords:
sugarcane, in vitro germplasm preservationAbstract
Plantlets of two cultivated sugarcane cultivars, Supan 1 and CO2, cultured on modified Murashige and Skoog supplemented with 1 mg/l 2,4-dichlorophenoxy acetic acid, 0.1 mg/l myo-inositol, 0.02 mg/l glycine, 20g/l sucrose and 10% by volume of coconut water (CD media) were used. Plantlets were transferred to incubator controlled at 5°C and 15°C under 24 hours light condition for 1 and 2 months. After the storage periods, plantlets were cultured under room temperature for 1 month. Culture under 5°C for 1 month and 15°C for 1 and 2 months could decrease growth of sugarcane plantlets in which all of plantlets could normally rcgrowth under room temperature. Plantlets of sugarcane cultivar Supan 1 cultured under 5°C for 2 months could. regrowth only 50-60% under room temperature.
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