أعرض تسجيلة المادة بشكل مبسط
| dc.date |
2006-10-30T21:38:03Z |
|
| dc.date |
2006-10-30T21:38:03Z |
|
| dc.date |
1973 |
|
| dc.date.accessioned |
2013-10-16T07:41:14Z |
|
| dc.date.available |
2013-10-16T07:41:14Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3262 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3262 |
|
| dc.description |
A survey to determine distribution and intensity of cankers and associated
damage in North Dakota windbreak plantings of Russian-olive and Siberian
elm was conducted in 1972. Four hundred and thirty-five (76 percent)
of 574 Russian-olive examined had cankers, and 552 (72 percent) of 769
Siberian elm examined had cankers. Cankers on trees in all windbreaks
except one contained the secondary fungi Cytospora sp., Dothichiza sp.,
and Camarosporium sp. Tubercularia ulmea, the reported pathogen, was
recovered from only one windbreak. Most cankers were on small twigs
and branches. The cause of windbreak decline appears to be herbicide
injury, with root pruning caused by close cultivation, and soil compaction
caused by livestock exerting minor effects in localized areas. Recommendations
are made to reduce windbreak decline. |
|
| dc.language |
en_US |
|
| dc.publisher |
Missoula, Mont. : USDA, Forest Service, Northern Region, Division of State and Private Forestry |
|
| dc.relation |
Report (United States. Forest Service. Northern Region) |
|
| dc.relation |
no. 73-10 |
|
| dc.relation |
Insect disease report |
|
| dc.title |
Cankers in North Dakota windbreak plantings : survey and evaluation |
|
| dc.type |
Technical Report |
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الملفات في هذه المادة
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لا توجد أي ملفات مرتبطة بهذه المادة.
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هذه المادة تبدو في المجموعات التالية:
أعرض تسجيلة المادة بشكل مبسط