西南林业大学学报2012，Vol.32Issue(1)：56-60,5.DOI:10.3969/j.issn.2095-1914.2012.01.012
陕西关中落叶松杨栅锈菌夏孢子流行规律分析
Analysis on Urediniospore Spreading Law of Melampsora larici-populina in Guanzhong Area of Shaanxi Province
赵官成1
作者信息
- 1. 克拉玛依市第一中学,新疆克拉马依834000
- 折叠
摘要
Abstract
The spreading rule of urediniospores of Melampsora larici-populina, which is the pathogen of Popu-lus cathayana leaf rust disease, in Guanzhong Region of Shaanxi Province was primarily studied by means of urediniospores grab technique and Gray Theory. The results showed that urediniospores were start to be spread around August and to be ended in early November each year, the maximum spread in the mountainous and plain areas was in mid-September and mid-October respectively. The mathematical model of the urediniospore spreading rule was Xt =81.08 × e -0.49t in STC plot. This study revealed that Populus cathayana leaf rust disease caused by Melampsora larici-populina occurred in the west of Guanzhong, and then spread from west to east, from low latitude to high latitude, from high altitude to low altitude and from the mountainous area to the plain area.关键词
落叶松杨栅锈菌/夏孢子/流行规律/灰色理论Key words
Melampsora larici-populina/ urediniospore/ spreading rule/ Gray Theory分类
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赵官成..陕西关中落叶松杨栅锈菌夏孢子流行规律分析[J].西南林业大学学报,2012,32(1):56-60,5.
