柑橘線蟲對於酸桔生長影響之研究
Other Title
Influence of the Citrus Nematodes, Tylenchulus Semipenetrans, on Growth of Sunki, Citrus Reticulata Var. Sunki
Journal
農業研究
Journal Volume
15
Journal Issue
3
Start Page
48
End Page
51
Date Issued
1966-09-05
Date
1966-09-05
Author(s)
童慕秋
Mo-Chu Toung
Abstract
本試驗於 1964 年 5 月在士林園藝試驗分所陽明山工作站開始舉行接種，至 1965 年 3 月止，歷時 10 個月。其結果顯示已接種柑桔線蟲之酸桔，較未接種者，株高平均減少 24 %，全株重量平均減少 51 %，根重平均減少 62.8 %，葉長平均減少 17.6 %，葉寬平均減少 17.1 %，葉數平均減少 12.8 %。經統計分析後，其差異均甚顯著。且被接種者之若干葉片，往往有黃化病徵。由此觀之，柑桔線蟲對於酸桔根莖葉生長之削弱，至為顯著。尤以阻得根部之發育為尤甚。
The economical importance of the citrus nematode, Tylenchulus semipenetrans Cobb, has been reported by Thomas, Baines, and Van Gundy. For understanding the influence of this nematode on growth of Sunki, Citrus reticulata var. Sunki (Havata) Toung, a common rootstock in Taiwan, this experiment has been con-ducted for 10 months, from May of 1964 to March of 1965, at the Yangmingshan Field Station, Shihlin Horticultural Experiment Station.
20 small uniform Sunki seedlings, which had been grown in the steam-sterilized sandy learn soil, were selected for this experiment. 10 individual pots containing one seedling each were inoculated with the citrus nematode larvae which had been propagated from a single eggmass. Approximate 100,000 larvae were syringed into the soil around each seedling. The other 10 seedlings grown individually in each pot were used for check. This experiment was carried out in the well-controlled greenhcuse, and all of the seedlings were grown under conditions of uniform and sufficient nutrition and soil moisture. 10 months later, all seedlings were carefully removed from soil to measure.
Results indicated the citrue nematode can significantly decrease the growth of Sunki seedlings. Averagely, the reductions in height, total fresh weight, fresh weight of roots, length and width of leaves, and numbers of leaves were 24%, 51%, 62.8%, 17.6%, 17.1%, and 12.8% respectively.
Publisher
農業試驗所
Type
journal article
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