کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6375095 | 1624708 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Camelina: Adaptation and performance of genotypes
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
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چکیده انگلیسی
Camelina (Camelina sativa L. Crantz) has shown potential as an alternative and biofuel crop in cereal-based cropping systems. Our study investigated the adaption, performance, and yield stability among camelina genotypes across diverse US Pacific Northwest (PNW) environments. Seven named camelina genotypes and 11 experimental numbered genotypes were evaluated for seed and oil yield in trials at 18 location/year environments that spanned four annual precipitation zones. Locations were rainfed with long-term mean annual precipitation ranging from 242 to 1085Â mm. Thirteen trials were spring-planted and five were fall-planted. Oil content was determined on seed from seven trials, seed weight from five trials, plant height and grain density from four trials, and plant lodging from two trials. Yield stability index was determined and related to seed yield across trials and within each of four annual precipitation zones. Seed yields varied from a trial mean of 127Â kg/ha at Lind WA during a year of extreme drought to 3302Â kg/ha at Pullman WA with the grand mean 1213Â kg/ha. Seed yields among genotypes were significantly different (PÂ <Â 0.05) in 10 environments and ranged across environments from 913Â kg/ha for 'GP07' to 1349Â kg/ha for 'Celine'. Spring planting produced higher yields than fall planting and named genotypes out-performed numbered genotypes overall. Between the two highest yielding genotypes, 'Calena' was more stable for yield than Celine. Stability index values varied among genotypes within each annual precipitation zone evaluated indicating adaptation differences among genotypes. Oil content varied from 29.6% to 36.8% across environments but varied less among genotypes - 30.8-32.9%. Oil content was negatively correlated to seed yield. Grand means for camelina performance characteristics in four trials were 1.25Â g/1000 seed weight, 92.4Â cm plant height, and 652Â kg/m3 seed density. Named genotypes were more productive than numbered genotypes across environments and can be grown is diversified environments when selected based on anticipated precipitation, seed yield, oil content, and other agronomic characteristics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Field Crops Research - Volume 155, January 2014, Pages 224-232
Journal: Field Crops Research - Volume 155, January 2014, Pages 224-232
نویسندگان
Stephen O. Guy, Donald J. Wysocki, William F. Schillinger, Thomas G. Chastain, Russell S. Karow, Kim Garland-Campbell, Ian C. Burke,