Relationship between dark period and leaf chlorosis, potassium, magnesium and calcium content of young eggplants
Relationship between dark period and leaf chlorosis, potassium, magnesium and calcium content of young eggplants
复制标题
暗期与幼茄叶片失绿及钾、镁、钙含量的关系
DOI：
10.1016/0304-4238(95)00866-7
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发表时间：
1996
影响因子：
4.3
通讯作者：
M. Masuda
中科院分区：
文献类型：
--
作者：
Ephraim N. Murage;Yoshinari Sato;M. Masuda
Young eggplants (Solanum melongena L. var. Senryo) were grown for 2 weeks with daily dark periods of 0, 2, 4, 6, 9 and 12 h to determine the effect of shortening the length of dark period on plant growth, incidence of leaf chlorosis and the status of K, Mg and Ca in tissues. Shortening the length of dark period affected the shoot:root (S:R) ratio. Growing plants with a daily dark period of less than 9 h led to the development of leaf chlorosis and a decline in the leaf chlorophyll concentration. The length of the dark period did not have a significant effect on the concentration of K, Mg and Ca ions in the xylem exudate. On the fifth day of treatment which was the time when leaf chlorosis first started to become visible, no decrease was observed in the levels of K, Mg and Ca content in leaves of plants grown with 0 h of dark period. Shortening the length of dark period did not suppress the levels of K, Mg and Ca in plant tissues which implied that the observed leaf chlorosis was not caused by a deficiency of either K, Mg or Ca.
