陕西林业科技
陝西林業科技
협서임업과기
SHAANXI FOREST SCIENCE AND TECHNOLOGY
2011年
4期
22-24
,共3页
樟子松%苗期%猝倒病
樟子鬆%苗期%猝倒病
장자송%묘기%졸도병
Pinus sylvestnis var.mongolica Litv.%seedling%damping off
在陕西省横山县对不同茬地樟子松苗期猝倒病发病规律进行了研究,表明农耕茬地樟子松幼苗猝倒病始发期较新开垦地早10 d左右,呈穴状或片状猝倒,发病率为10.90%,显著高于新开地的0.355%。育苗时应尽可能选择新开地。
在陝西省橫山縣對不同茬地樟子鬆苗期猝倒病髮病規律進行瞭研究,錶明農耕茬地樟子鬆幼苗猝倒病始髮期較新開墾地早10 d左右,呈穴狀或片狀猝倒,髮病率為10.90%,顯著高于新開地的0.355%。育苗時應儘可能選擇新開地。
재합서성횡산현대불동치지장자송묘기졸도병발병규률진행료연구,표명농경치지장자송유묘졸도병시발기교신개은지조10 d좌우,정혈상혹편상졸도,발병솔위10.90%,현저고우신개지적0.355%。육묘시응진가능선택신개지。
Pinus sylvestnis var.mongolica Litv.seedlings were grown in different farming stub fields.The occurrence of damping-off were examined and studied.The result showed that damping off taking place in stub field was about10 days earlier than in newly-reclaimed farm land and most occurred in a circle or plot pattern,infection rate to be 10.90% which is 0.355% over the infection rate in newly-reclaimed land.Seedling breeding,therefore,is better to be conducted in the newly-reclaimed land.
