Articles
FREEZING DAMAGE FACTORS AND PHYSIOLOGICAL INDEXES OF FROST RESISTANCE IN LOQUAT
Article number
887_28
Pages
171 – 176
Language
English
Abstract
Frost injury in loquat (Eriobotrya japonica Lindl.) frequently occurred when temperature was below 0°C for more than 5 h and was associated with >90% humidity.
Frost injury become severe with the longer length of low temperature and high humidity stress.
Frost-resistance decreases during different developmental stages from bud to fruit. Zaozhong No.6 was more resistant to frost comparing to cultivar of Dawuxing. Loquat trees located on slopes had better cold-resistant than those at the plains.
Organs with stronger cold-resistant have greater superoxide dismutase (SOD) enzyme activity, higher content of proline, lower content of malondialdehyde (MDA), and electrolyte leakage.
Frost injury become severe with the longer length of low temperature and high humidity stress.
Frost-resistance decreases during different developmental stages from bud to fruit. Zaozhong No.6 was more resistant to frost comparing to cultivar of Dawuxing. Loquat trees located on slopes had better cold-resistant than those at the plains.
Organs with stronger cold-resistant have greater superoxide dismutase (SOD) enzyme activity, higher content of proline, lower content of malondialdehyde (MDA), and electrolyte leakage.
Publication
Authors
S.X. Sun, J. Li, M.Y. Tu, D. Chen, H.J. Xie, G.L. Jiang
Keywords
loquat, frozen injury, climatic factor, physiological index
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