Effect of salinity and radiation on proline accumulation in seeds of canola (Brassica napus L.)

Since laser beam may affect plant traits, it was used to enhance accumulation of proline in rapeseed and therefore to improve its tolerance to the salinity stress. This investigation was performed to study the effect of NaCl concentration in irrigated water (0, 100, 200 and 300 mmol NaCl) on proline accumulation of Canola (Brassica napus L.) after laser irradiation (Red, Infra-red and Nd:YAG) at two exposure treatments. In each exposure, seeds were irradiated for three minutes once or twice by the laser set. Free proline content in leaves increased significantly by increasing of NaCl concentration. Also proline content significantly increased with irradiation by laser beam. The Red laser irradiation used once and the Nd:YAG laser used twice had the greatest effect on the proline content whereas the Infrared laser had a low effect. Double application of irradiation induced a significantly higher amount of proline in the leaves compared to only one application. This is the first report on using different lasers irradiation on proline content in a winter rapeseed.

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Extent and structure of linkage disequilibrium in canola quality winter rapeseed (Brassica napus L.)

Theoretical and Applied Genetics ◽

10.1007/s00122-009-1221-0 ◽

2009 ◽

Vol 120 (5) ◽

pp. 921-931 ◽

Cited By ~ 49

Author(s):

Wolfgang Ecke ◽

Rosemarie Clemens ◽

Nora Honsdorf ◽

Heiko C. Becker

Keyword(s):

Linkage Disequilibrium ◽

Brassica Napus ◽

Brassica Napus L ◽

Winter Rapeseed ◽

Canola Quality

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Genotype × Environment Interactions, Heritability, and Trait Correlations of Sinapate Ester Content in Winter Rapeseed (Brassica napus L.)

Crop Science ◽

10.2135/cropsci2006.03.0155 ◽

2006 ◽

Vol 46 (5) ◽

pp. 2195-2199 ◽

Cited By ~ 19

Author(s):

Thomas zum Felde ◽

Heiko C. Becker ◽

Christian Möllers

Keyword(s):

Brassica Napus ◽

Brassica Napus L ◽

Ester Content ◽

Winter Rapeseed ◽

Trait Correlations

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DOUBLE CROPPING WINTER RAPESEED AND GRAIN SORGHUM

Canadian Journal of Plant Science ◽

10.4141/cjps86-060 ◽

1986 ◽

Vol 66 (3) ◽

pp. 425-430 ◽

Cited By ~ 1

Author(s):

R. R. DUNCAN ◽

C. S. HOVELAND

Keyword(s):

Glycine Max ◽

Brassica Napus ◽

Cropping System ◽

Grain Sorghum ◽

Winter Rape ◽

Brassica Napus L ◽

Double Cropping ◽

Glycine Max L ◽

Winter Rapeseed ◽

Sorghum Bicolor L

Since rainfall generally exceeds 500 mm during the winter months and soil erosion is a problem in the southern U.S.A., a cover crop is essential to reduce soil losses. Continuous cultivation of a crop on the same land also provides the opportunity for pest problems to develop. A winter rapeseed (Brassica napus L.)-grain sorghum (Sorghum bicolor (L). Moench.) double-cropping system was investigated in the field from 1981 to 1984. Conventional tillage (CT) and no-till (NT) systems were used for both crops. Gullivar rape was planted in October and harvested in June. Winter rapeseed yields averaged 2.87 t ha−1 on CT plots in 1982. Averaged over 1983 and 1984, rape yields were 1.66 and 0.73 t ha−1 on CT and NT plots, respectively. However, the seeding method biased the rapeseed performance. Problems were encountered with winter weed control and pod shattering in the winter rape plots. Two sorghum hybrids, R. C. Young Oro Txtra and Funks G-550, were planted in June and harvested in October. Grain yields were not significantly different between hybrids (Oro 5.69 t ha−1, Funk 5.67 t ha−1) or between tillage systems (CT 5.59 t ha−1, NT 5.78 t ha−1). Grain yield differences were noted for year × hybrid × tillage interactions. Rape was a weed problem in the sorghum plots. The winter rape-sorghum double-cropping system offers an alternative to current winter small grains-sorghum/soybean (Glycine max (L.) Merr.) or winter annual legume-sorghum/soybean (Glycine max (L.) Merr.) systems; however, markets for the winter rapeseed and production economic analyses are needed prior to adoption of the system. Additional winter rapeseed research is needed to evaluate yields properly under NT conditions.Key words: Sorghum bicolor (L.) Moench, Brassica napus L., conservation tillage, multiple cropping, sorghum, rapeseed

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ADAPTATION OF WINTER RAPESEED IN ONTARIO

Canadian Journal of Plant Science ◽

10.4141/cjps87-095 ◽

1987 ◽

Vol 67 (3) ◽

pp. 675-684 ◽

Cited By ~ 3

Author(s):

G. C. BEAULIEU ◽

D. J. HUME

Keyword(s):

Brassica Napus ◽

Field Trials ◽

Winter Survival ◽

First Year ◽

Brassica Napus L ◽

Northern Ontario ◽

Cold Temperatures ◽

The North ◽

Winter Snow ◽

Winter Rapeseed

In order to determine regions of adaptation of winter rapeseed (Brassica napus L.), field trials were planted at about 30 locations in Ontario in 1981 and 1982. Four cultivars were tested each year. Winter survival was poor in northern Ontario in both years, and along the north shore of Lake Erie in the first year. Over all sites, mean winter survival was 52%. At sites which did not completely winterkill, plant survival and yield averaged 70% and 2.38 t ha−1. Best winter rapeseed performance in Ontario occurred at well-drained sites with good winter snow cower and an absence of excessive flooding or cold temperatures in the spring. Cultivars did not differ in survival or yield in 1981–1982. The cultivar Jet Neuf had higher yields than the other cultivars in 1982–1983. There were differences in oil and protein content among the cultivars. The results suggest that winter rapeseed could become a viable crop in Ontario.Key words: Rapeseed (winter), Brassica napus, seed yield, winter survival, adaptation

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