Physiological and biochemical effects of drought stress in banana cv. Berangan
2000
Suzita S. | Maniah M. | Zulkiffi H.Shamsudinı
One month old banana cv. Berangan plantlets were grown in vitro in MS media solution containing different concentrations of Polyethylene glycol (PEG) 4000 to simulate water stress conditions. The six concentrations of PEG 4000 were 10%, 11 %, 12%, 13%, 14%, 15%. No PEG 4000 was added in the control. Six replicates were used for each treatment. Growth, moisture, chlorophyll, protein content and activity of peroxidase were measured after four weeks of culture. The results indicated that plantlets in 10% PEG 4000 showed the highest growth rate (60%) when compared to other concentrations indicating the least affected by water stress. The marked decrease of moisture (400 %) and chlorophyll content (444 %) in 15% PEG 4000 were also observed. Plantlets in 15% PEG 4000 also showed the lowest content of protein (15 mg protein! g fresh weight). However, the peroxidase activity was increased particularly in 15% of PEG 4000 which resulted the highest activity of peroxidase (4300 unit! mg protein).
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Universiti Putra Malaysia