CULTIVAR VARIATION IN TOTAL NITROGEN UPTAKE IN RAPE

1977 ◽  
Vol 57 (3) ◽  
pp. 619-624 ◽  
Author(s):  
BAHRAM GRAMI ◽  
L. J. LaCROIX
Keyword(s):  
Brassica Napus ◽  
Total Nitrogen ◽  
Nitrogen Uptake ◽  
Seed Protein ◽  
High Protein ◽  
Brassica Napus L ◽  
Plant Parts ◽  
Vegetative Plant ◽  
Cultivar Variation ◽  
Nitrogen Contents

Summer rape (Brassica napus L.) cv. Tower contained higher nitrogen contents in the vegetative plant parts at anthesis and maturity, and higher seed protein than cv. Midas when grown under similar conditions. The high protein trait in cv. Tower was directly associated with its greater ability for the uptake and translocation of nitrogen. The differential nitrogen uptake appeared to be inherited.

scholarly journals Dynamics of dry matter and selenium accumulation in oilseed rape (Brassica napus L.) in response to organic and inorganic selenium treatments

2015 ◽  
Vol 24 (2) ◽  
pp. 104-117 ◽  
Author(s):  
Nashmin Ebrahimi ◽  
Helinä Hartikainen ◽  
Asko Simojoki ◽  
Roghieh Hajiboland ◽  
Mervi M Seppänen
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Plant Residues ◽  
Growth Stages ◽  
Brassica Napus L ◽  
Soil Microbial ◽  
Plant Parts ◽  
Selenium Accumulation ◽  
Inorganic Selenium ◽  
The Impact

The uptake by and subsequent translocation of selenium (Se) within the plant is dependent on its chemical from and soil properties that dictate this trace element’s bioavailability. Plant species differ in their tendency to accumulate Se. Se taken-up by plants is returned to soil in plant residues, but the bioavailability of organic Se in those residues is poorly known. We investigated the impact of inorganic (Na2SeO4), organic (Se-enriched stem and leaf residues) Se applications and also soil microbial respiration on the growth and Se concentrations of various plant organs of oilseed rape (Brassica napus L.) during its development from the rosette to the seed filling stage. Both inorganic and organic Se slightly improved plant growth and enhanced plant development. Inorganic Se was more bioavailable than the organic forms and resulted in 3-fold to 6-fold higher Se concentrations in the siliques. Inorganic Se in autoclaved soil tended to elevate the Se concentration in all plant parts and at all growth stages. The organic Se raised Se concentrations in plants much less effectively than the inorganic selenate. Therefore, the use of inorganic Se is still recommended for biofortification.

Earthworms enhanced winter oilseed rape (Brassica napus L.) growth and nitrogen uptake

2010 ◽  
Vol 139 (4) ◽  
pp. 463-468 ◽  
Author(s):  
Shujie Zhang ◽  
Ying Chao ◽  
Chunlei Zhang ◽  
Jing Cheng ◽  
Jun Li ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Nitrogen Uptake ◽  
Winter Oilseed Rape ◽  
Brassica Napus L

scholarly journals Phytoremediation based on canola (Brassica napus L.) and Indian mustard (Brassica juncea L.) planted on spiked soil by aliquot amount of Cd, Cu, Pb, and Zn

2008 ◽  
Vol 53 (No. 1) ◽  
pp. 7-15 ◽  
Author(s):  
M. Turan ◽  
A. Esringü
Keyword(s):  
Heavy Metal ◽  
Brassica Napus ◽  
Metal Uptake ◽  
Indian Mustard ◽  
Metal Availability ◽  
Heavy Metal Uptake ◽  
Brassica Napus L ◽  
Plant Parts ◽  
Spiked Soil ◽  
Soil Phytoremediation

The use of plants to remove heavy metals from soil (phytoremediation) is expanding due to its cost-effectiveness as compared to conventional methods and it has revealed a great potential. Since contaminants such as Pb or Cd have a limited bioavailability in the soil, methods to facilitate their transport to the shoots and roots of plants are required for successful phytoremediation. The objective of this study was to investigate the effects of addition of different rates (0, 3, 6 and 12 mmol/kg) of ethylene diaminetetraacetate (EDTA) on heavy metal availability in soils contaminated with 50 mg/kg Cd (CdCl<sub>2</sub>), 50 mg/kg Cu (CuSO<sub>4</sub>), 50 mg/kg Pb [Pb(NO<sub>3</sub>)<sub>2</sub>] and 50 mg/kg Zn (ZnSO<sub>4</sub>), and on the capacity of canola (Brassica napus L.) and Indian mustard (Brassica junceaL.) plants to uptake Cu, Cd, Pb and Zn in a growth chamber. Results indicated that EDTA application increased heavy metal availability and uptake by plants. Significant differences were obtained in both species and plant parts. As for plant species tested, canola was more effective in the uptake of Cu, Cd, Pb and Zn. Root heavy metal uptake of both species was higher than shoot heavy metal uptake.

Assessment of genetic diversity in Australian canola (Brassica napus L.) cultivars using SSR markers

2009 ◽  
Vol 60 (12) ◽  
pp. 1193 ◽  
Author(s):  
J. Wang ◽  
S. Kaur ◽  
N. O. I. Cogan ◽  
M. P. Dobrowolski ◽  
P. A. Salisbury ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Brassica Napus ◽  
Genetic Variability ◽  
Ssr Marker ◽  
Principal Coordinate Analysis ◽  
Pedigree Structure ◽  
Brassica Napus L ◽  
Breeding Programs ◽  
Cultivar Variation ◽  
Simple Sequence

Australian canola (Brassica napus L.) has been relatively isolated from the global gene pool and limited knowledge is available for genetic variability based on DNA profiling. In the present study, genetic diversity of recent Australian canola cultivars was determined by simple sequence repeat (SSR) marker analysis. In total, 405 individuals from 48 varieties were genotyped with 18 primer pairs, resulting in 112 polymorphic features. The number of polymorphic features amplified by each SSR primer pair varied from 3 to 16. Analysis of molecular variance (AMOVA) detected 53.7% and 46.3% within- and between-cultivar variation, respectively. Intra-cultivar genetic variability differed according to cultivar. The number of polymorphic features per cultivar varied from 35 (Ag-Spectrum) to 72 (Ag-Insignia), while mean sum of squares (MSS) varied from 6.29 (Tornado TT) to 24.76 (Ag-Emblem). Genetic differentiation of cultivars generally reflected pedigree structure and origin by breeding organisation. Clustering and principal coordinate analysis (PCoA) indicated that the individuals were separated into 4 major groups. The genetic diversity information from this study will be useful for future Australian canola breeding programs.

DISTRIBUTION OF PHOTOSYNTHATES AFTER 14CO2 ASSIMILATION BY STEMS, LEAVES, AND PODS OF RAPE PLANTS

1978 ◽  
Vol 58 (3) ◽  
pp. 783-787 ◽  
Author(s):  
D. J. MAJOR ◽  
J. B. BOLE ◽  
W. A. CHARNETSKI
Keyword(s):  
Brassica Napus ◽  
Brassica Napus L ◽  
Plant Parts ◽  
14Co2 Assimilation ◽  
Stems And Leaves ◽  
Lower Stem

Rape (Brassica napus L. cv. Zephyr) plants were allowed to assimilate 14CO2 through lower and upper stem internodes, leaves, and pods. Lower stem internodes exported few 14C-labelled assimilates. Lower leaves exported assimilates to the roots, whereas upper stems and leaves exported primarily to seeds and pods. Pods did not export labelled assimilates to other pods or plant parts but labelled photosynthate was detected in seed of the treated pod. The older the pod was, the greater the amount of radioactivity detected in the seed. Pods were also sinks for labelled assimilates from upper stem internodes and leaves.

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