کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9620199 | 159423 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Genetically based resistance of black spruce (Picea mariana) to the yellowheaded spruce sawfly (Pikonema alaskensis)
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Genetically based resistance of black spruce (Picea mariana) to the yellowheaded spruce sawfly (Pikonema alaskensis) Genetically based resistance of black spruce (Picea mariana) to the yellowheaded spruce sawfly (Pikonema alaskensis)](/preview/png/9620199.png)
چکیده انگلیسی
We evaluated the effect of plant genotype on resistance of black spruce (Picea mariana (Mill.) BSP) to the yellowheaded spruce sawfly (Pikonema alaskensis (Roh.)) in three half-sib family test sites and in a clonal seed orchard in New Brunswick, Canada. Heritability estimates were positively correlated to the percentage of trees defoliated by the sawfly in the half-sib family tests. At the site where the most damage occurred, the estimated individual heritability of resistance was 0.84, while that based on family means was 0.57. In the clonal seed orchard, the variability among clones explained 39.3% of the variation in defoliation, and individual clone heritability and clone mean heritability estimates were 0.40 and 0.82, respectively. Positive phenotypic and genetic correlations between tree height and damage suggest that selection for resistance may result in slightly slower tree height growth in some cases. These results suggest that there is good potential to select trees resistant to the sawfly that display other commercially desirable traits.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forest Ecology and Management - Volume 215, Issues 1â3, 25 August 2005, Pages 84-90
Journal: Forest Ecology and Management - Volume 215, Issues 1â3, 25 August 2005, Pages 84-90
نویسندگان
Thibaut Leinekugel le Cocq, Dan Quiring, Alice Verrez, Yill Sung Park,