摘要
试验结果表明,在病级不同的樟子松针叶内,无机元素的含量不同。1年生罹病针叶内Fe的含量高于健康林木针叶内铁的含量,2年生针叶内Mn、Cu、K的含量随病级的增高而增加,3年生病叶内Fe的含量比健康林木的高2.7倍,4年生病叶内K、Cu、Mn的含量随病级的增高而增加。
The results of test show that the content of inorganic element in a different disease index of Pinus sylvestris var. mongolica. The ferrous content in diseased needles of 1 year old is higher than healthy tree. The manganese, copper and potassium content is increased with the increase of disease lndex. The ferrous content of 3 years old diseased needles is 2.7 times higher than healthy tree. The potassium, copper and manganese content of diseased needles is increased with increase of disease index.
出处
《林业科技》
北大核心
1992年第3期21-24,共4页
Forestry Science & Technology
关键词
樟子松
松针
锈病
针叶
无机元素
Pinus sylvestris var.mongolica
Needle
Disease index
Inorganic element
Variation
