摘要
测定了 6个枣树品种和 1个酸枣品种对枣疯病的抗性及河北太行山区主栽品种婆枣的 45个单株对枣疯病的抗性。利用连续两年嫁接病皮的方法测定了采自山西果树研究所中国枣树基因库的 5个枣树品种砘子枣、马牙枣、长红枣、哈蟆枣、壶瓶枣及河北唐县的婆枣和酸枣两个品种的抗病性。通过四年的跟踪观察 ,以上 7种枣树的发病率分别是 10 0 %、78 5 %、6 6 6 7%、0 %、0 %、10 0 %、80 %。结果表明 ,壶瓶枣和蛤蟆枣对枣疯病具有高度抗性。利用连续 3年 2次嫁接病皮和 1次嫁接病枝的方法测定了采自河北太行山区七县的婆枣 45个单株 112株根蘖苗的抗病性 ,经 4年观测 ,结果有 3个单株 6根蘖苗经过三次测定苗木未疯 。
The resistance of seven jujube strains (species),5 of these, Zizyphus jujuba var. Dunzizao, Zizyphus jujuba var. Changhongzao, Zizyphus jujuba var.Mayazao, Zizyphus jujuba var. Hupingzao and Zizyphus jujuba var. Hamazao,selected from Chinese genebank of jujube in Shanxi Fruit Tree Research Institute,other two of these: Zizyphus jujuba var.Pozao and Zizyphus Spinosa selected from Tang County,Hebei province,to jujube witches\|broom disease was determined by using the method of grafting diseased bark onto the seedlings from 1995～1999.The results are as follow:The percent of seedlings infected by the disease for Z.jujuba var.Dunzizao is 100%, Z.jujuba var. Mayazao is 78.57%, Z.jujuba var.Changhongzao is 66.67%, Z.jujuba var.Pozao is 100%, Zizyphus Spinosa is 80%, Z.jujuba Hamazao is 0% and Z.jujuba var. Hupingzao is 0%.This indicates that Z.jujuba var. Hupingzao and Z.jujuba var. Hamazao have high resistance to the jujube witches\|broom disease.112 seedlings belonging to 45 individuals of Pozao jujube selected from the epidemic area of the disase in Taihang Mountain,Hebei province,were planted in experiment site in Tang County in 1995.From 1996～1997,by using the grafting method the phytoplasmas caused the disease were infected artificially twice.In the third time,the phytoplasmas were artificially infected by grafting some infected twigs onto the seedlings of jujube selected in April 1998.The results investigated in October 1999 showed that 6 seedlings belonging three individuals have not been infected by the disease.Though 3 of these belonging to 2 individuals grew some little diseased twigs in May and June 1998 just after grafting diseased twigs on them, these diseased twigs all died in next spring,and the seedling have grown well.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2001年第5期87-92,共6页
Scientia Silvae Sinicae
关键词
枣树
枣疯病
植原体
抗病性
选择
枣树品种
Jujube tree, Jujube witches\|broom disease, Phytoplasmas, Resistance, Selection
