高粱癭蠅密度與危害之關係
Other Title
RELATIONSHIP OF SORGHUM MIDGE DENSITY TO THE DAMAGE OF SORGHUM
Journal
中華昆蟲
Journal Volume
7
Journal Issue
1
Pages
25-29
Date Issued
1987-03
Author(s)
洪士程
Shi-Cheng Hong
Abstract
以接蟲方法調查高梁癭蠅 Contarinia sorghicola (Coquillett) 密度與產量損失之關係，結果顯示高梁癭蠅密度與危害高梁果粒之關係為 Ŷ=53.4X^0.824，每隻雌成蟲可造成 1.36 克之產量損失。經濟危害水平是以開花期花序上產卵之雌成蟲數為標準，依試驗結果求得之經濟危害水平為每花序 0.6 隻產卵雌成蟲。
By caging midges on the potted sorghum plant, the relationship between the density of adult sorghum midge, Contarinia sorghicola (Coquillett), and yield loss in grain sorghum was determined. Results indicated that the relationship of sorghum midge density to damaged spikelets could be expressed as an exponential curve regression Ŷ=53.4X^0.824, and grain loss per oviposition midge was 1.36g.
Subjects
高粱
密度
癭蠅
Publisher
中華昆蟲學會
Type
journal article