scholarly journals New Evidence of Model Crop Brassica napus L. in Soil Clean-Up: Comparison of Tolerance and Accumulation of Lead and Cadmium

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2051
Author(s):  
Mihaela Rosca ◽  
Petronela Cozma ◽  
Mariana Minut ◽  
Raluca-Maria Hlihor ◽  
Camelia Bețianu ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Translocation Factor ◽  
Brassica Napus L ◽  
Experimental Conditions ◽  
Lead And Cadmium ◽  
Chlorophyll A And B ◽  
The Mean ◽  
Filter Papers ◽  
Germination And Growth ◽  
Model Crop

The potential of the model crop Brassica napus L. (rapeseed) for the phytoremediation of soils polluted with metals was investigated at laboratory scale. The first step consists in the evaluation of the seed germination and growth of the Brassica napus L. plant in a controlled environment, followed by the determination of the photosynthetic pigments content represented by chlorophyll a and b and carotenoids. The degree of metal accumulation in rapeseed has been evaluated by the bioaccumulation factor (BAC), the bioconcentration factor (BCF) and the translocation factor (TF). Phytotoxicity tests were performed in Petri dishes with filter papers moistened with metal solutions in the range of 0 to 300 mg/L Pb(II) or Cd(II). At the highest concentration of the lead and cadmium treatments (300 mg/L), B. napus L. showed the lowest germination degree (56.67% and 43.33%, respectively). According to Tukey test results, Pb(II) concentrations of up to 300 mg/L do not significantly affect the length of the hypocotyls, whereas, in the case of Cd(II), the mean of the radicle and hypocotyl lengths of the seedlings are significantly affected compared to the mean of the control. In soil pot experiments, important changes have been obtained in the pigment content, especially in the case of cadmium. For both metals and for each treatment (100 to 1500 mg/kg Pb(II) and 1 to 30 mg/kg Cd(II)), a TF < 1 indicates an ineffective metal transfer from root to shoot. Finally, rapeseed can be considered a tolerant plant and a suitable candidate for Pb(II) and Cd(II) accumulation and for the phytostabilization of contaminated soil under the experimental conditions adopted in the present study.

scholarly journals Genetic Diversity in Commercial Rapeseed (Brassica napus L.) Varieties from Turkey as Revealed by RAPD

2013 ◽  
Vol 5 (1) ◽  
pp. 114-119 ◽  
Author(s):  
Özlem ÖZBEK ◽  
Betül Uçar GIDIK
Keyword(s):  
Genetic Diversity ◽  
Brassica Napus ◽  
Dna Analysis ◽  
Diversity Index ◽  
Principal Component ◽  
Brassica Napus L ◽  
Binary Matrix ◽  
Crop Species ◽  
Commercial Crop ◽  
The Mean

In cultivated commercial crop species, genetic diversity tends to decrease because of the extensive breeding processes. Therefore, germplasm of commercial crop species, such as Brassica napus L. should be evaluated and the genotypes, which have higher genetic diversity index, should be addressed as potential parental cross materials in breeding programs. In this study, the genetic diversity was analysed by using randomly amplified polymorphic DNA analysis (RAPD) technique in nine Turkish commercial rapeseed varieties. The RAPD primers (10-mer oligonucleotides) produced 51 scorable loci, 31 loci of which were polymorphic (60.78%) and 20 loci (39.22%) were monomorphic The RAPD bands were scored as binary matrix data and were analysed using POPGENE version 1.32. At locus level, the values of genetic diversity within population (Hs) and total (HT) were 0.15 and 0.19 respectively. The genetic differentiation (GST) and the gene flow (Nm) values between the populations were 0.20 and 2.05 respectively. The mean number of alleles (na), the mean number of effective alleles (nae), and the mean value of genetic diversity (He) were 2.00, 1.26, and 0.19 respectively. According to Pearson’s correlation, multiple regression and principal component analyses, eco-geographical conditions in combination had significant effect on genetic indices of commercial B. napus L. varieties were discussed.

Cartier BX summer oilseed rape

2001 ◽  
Vol 81 (1) ◽  
pp. 105-106 ◽  
Author(s):  
S. R. Rimmer ◽  
R. Scarth ◽  
P. B. E. McVetty
Keyword(s):  
Brassica Napus ◽  
Key Words ◽  
Oilseed Rape ◽  
Protein Concentration ◽  
Western Canada ◽  
Blackleg Disease ◽  
Brassica Napus L ◽  
Oil Concentration ◽  
The Mean ◽  
Moderately Resistant

Cartier BX is the fourth in the Navigator® series of summer oilseed rape (Brassica napus L.) canola cultivars, which are resistant to Compas® herbicide, a mix of herbicides including the broadleaf herbicide bromoxynil. It is 32 kg ha–1 (1.3%) higher yielding than the mean of the check cultivars Defender, AC Excel and Legacy, is 5 g kg–1 lower in oil concentration and is 11 g kg–1 higher in protein concentration than the means of the check cultivars, respectively. Cartier BX is moderately resistant to blackleg disease. Cartier BX is adapted to the long- and mid-season B. napus canola-growing areas of western Canada. Key words: Oilseed rape (summer), bromoxynil resistance, Navigator® , Compas®

Armor BX summer oilseed rape

2001 ◽  
Vol 81 (1) ◽  
pp. 93-95 ◽  
Author(s):  
P. B. E. McVetty ◽  
S. R. Rimmer ◽  
R. Scarth
Keyword(s):  
Brassica Napus ◽  
Key Words ◽  
Oilseed Rape ◽  
Western Canada ◽  
Brassica Napus L ◽  
Oil Concentration ◽  
The Mean ◽  
Moderately Resistant

Armor BX is the first in the Navigator® series of summer oilseed rape (Brassica napus L.) canola cultivars, which are resistant to Compas® herbicide, a mix of herbicides including the broadleaf herbicide bromoxynil. It is 60 kg ha–1 (2.5%) higher yielding than the mean of the checks Cyclone, AC Excel and Legend, is 1 g kg–1 higher than the mean of the checks for oil concentration and is moderately resistant to blackleg. Armor BX is adapted to the long- and mid-season B. napus canola-rowing areas of western Canada. Key words: Oilseed rape (summer), bromoxynil resistance, Navigator®, Compas®

scholarly journals С BUDGET IN THE AGROECOSYSTEMS OF MAIZE (ZEA MAYS L.) AND RAPESEED (BRASSICA NAPUS L.)

2015 ◽  
Author(s):  
Ovidijus MIKŠA ◽  
Ligita BALEŽENTIENĖ
Keyword(s):  
Zea Mays ◽  
Brassica Napus ◽  
Co2 Emissions ◽  
Zea Mays L ◽  
Vegetation Period ◽  
Growth Stages ◽  
Soil Co2 ◽  
Brassica Napus L ◽  
Soil Co2 Emissions ◽  
The Mean

The aim of this research was to calculate and compare the C budget changes for maize (Zea mays L.) and rapeseed (Brassica napus L.), identifying soil seasonal respiratory CO2 (Ra+h) and assimilated photosynthetic CO2 at plant different growth stages. The research was carried out for maize (Zea mays L.) and rapeseed (Brassica napus L.), during the vegetation period (2014 June – September) at the PI ASU Training Farm, Kaunas district. The mean soil CO2 emissions were 1.971±0.12 μmol m-2s-1 for maize, and 2.199±0.25 μmol m-2s-1 for rapeseed. The highest measured soil CO2 emissions 2.432±0.23 μmol m-2s-1 for rapeseed in June, and 2. 963±0.28 μmol m-2s-1 for the maize in the second half of July. The mean C budget in maize agro-ecosystems was 15.54 t ha-1, while it was 10.30 t ha-1 in rapeseed.

Zodiac BX summer oilseed rape

2001 ◽  
Vol 81 (1) ◽  
pp. 101-103 ◽  
Author(s):  
P. B. E. McVetty ◽  
R. Scarth ◽  
S. R. Rimmer
Keyword(s):  
Brassica Napus ◽  
Key Words ◽  
Oilseed Rape ◽  
Oil Content ◽  
Western Canada ◽  
Blackleg Disease ◽  
Brassica Napus L ◽  
The Third ◽  
The Mean ◽  
Moderately Resistant

Zodiac BX is the third in the Navigator® series of summer oilseed rape (Brassica napus L.) canola cultivars, which are resistant to Compas® herbicide, a mix of herbicides including the broadleaf herbicide bromoxynil. Zodiac BX is equal in yield and oil content to the mean of the checks, Legend, AC Excel and Cyclone. Zodiac BX is moderately resistant to blackleg disease. Zodiac BX is adapted to the long- and mid-season B. napus canola-growing areas of western Canada. Key words: Oilseed rape (summer), bromoxynil resistance, Navigator® , Compas®

SELECTION AND HERITABILITY STUDIES ON CANOLA/RAPESEED FOR LOW TEMPERATURE GERMINATION

1983 ◽  
Vol 63 (2) ◽  
pp. 377-384 ◽  
Author(s):  
S. N. ACHARYA ◽  
J. DUECK ◽  
R. K. DOWNEY
Keyword(s):  
Brassica Napus ◽  
Low Temperature ◽  
Low Temperatures ◽  
Brassica Campestris ◽  
Brassica Napus L ◽  
Canadian Prairies ◽  
Complex Inheritance ◽  
Seeding Time ◽  
New Germplasm ◽  
Germination And Growth

Canola emergence and stand establishment are adversely affected by low soil temperature conditions which frequently occur in the Canadian prairies at seeding time. A technique, based on rapid germination of seeds on moist filter paper at 10 °C, was developed and used to screen canola genotypes suitable for low temperature propagation. Broad sense heritability estimates for rapid germination and growth at low temperatures were about 60% for Brassica napus L., and about 90% for B. campestris L., indicating complex inheritance (possibly polygenic) of these characters. Selection within canola cultivars for rapid germination was successful. However, canola genotypes presently available displayed limited variability for germination and seedling vigor at low temperatures. Thus, without bringing in new germplasm, rapid progress within the populations surveyed could not be expected.Key words: Brassica napus L., Brassica campestris L., low temperature germination selection, heritability

Effects of inbreeding and estimates of additive genetic variance within seven summer oilseed rape cultivars

Genome ◽  
1989 ◽  
Vol 32 (1) ◽  
pp. 115-119 ◽  
Author(s):  
J. E. Brandle ◽  
P. B. E. McVetty
Keyword(s):  
Brassica Napus ◽  
Inbreeding Depression ◽  
Oilseed Rape ◽  
Genetic Variance ◽  
Additive Genetic Variance ◽  
Inbred Lines ◽  
Brassica Napus L ◽  
Genetic Determination ◽  
The Mean

Seven groups of inbred lines derived from the summer oilseed rape (Brassica napus ssp. oleifera) cultivars 'Westar', 'Regent', 'Lergo', 'Marnoo', 'Ariel', 'Karat', and 'R83-11' were evaluated at three sites over 2 years, for agronomic characters and seed oil and protein concentrations. Estimates of additive genetic variance and heritability were calculated. Comparison of the mean of inbred lines with the mean of their respective source cultivars indicated little, if any, inbreeding depression in all cultivars except 'Ariel'. It was concluded that dominance is not a major factor in the genetic determination of the characters studied. For every trait in every cultivar, individual inbred lines were identified that exceeded or equaled their respective source cultivar means, indicating that neither heterozygosity per se nor genetic heterogeneity is required to maintain maximum performance in summer oilseed rape. Therefore, the oilseed rape cultivars used in this study were considered to be genetically heterogeneous populations, consisting of some number of generally homozygous lines. Significant additive genetic variance was detected for most traits in most cultivars, indicating that superior inbred lines could be extracted from within cultivars.Key words: inbreeding depression, heritability, Brassica napus L.

295 BX summer oilseed rape

2001 ◽  
Vol 81 (1) ◽  
pp. 97-99 ◽  
Author(s):  
P. B. E. McVetty ◽  
R. Scarth ◽  
S. R. Rimmer
Keyword(s):  
Brassica Napus ◽  
Key Words ◽  
Oilseed Rape ◽  
Western Canada ◽  
Brassica Napus L ◽  
Oil Concentration ◽  
The Mean

295 BX is the second in the Navigator® series of summer oilseed rape (Brassica napus L.) canola cultivars, which are resistant to Compas®, a mix of herbicides including the broadleaf herbicide bromoxynil. It is 44 kg ha–1 (1.9%) higher yielding than the mean of the checks Cyclone, AC Excel and Legend, is 2 g kg–1 higher than the mean of the checks for oil concentration and is moderately susceptible to blackleg. 295 BX is adapted to the long- and mid-season B. napus canola-growing areas of western Canada. Key words: Oilseed rape (summer), bromoxynil resistance, Navigator® , Compas®

Sodium chloride effects on lipase activity in germinating rape seeds

2000 ◽  
Vol 28 (6) ◽  
pp. 899-902 ◽  
Author(s):  
D. D. Ben Miled ◽  
M. Zarrouk ◽  
A. Chérif
Keyword(s):  
Sodium Chloride ◽  
Brassica Napus ◽  
Seed Germination ◽  
Seedling Growth ◽  
Lipase Activity ◽  
High Salt ◽  
Salt Treatment ◽  
Brassica Napus L ◽  
Germination And Growth ◽  
Radicle Length

Seeds of rape (Brassica napus L.) were germinated at various NaCl concentrations up to 200 mM. Germinating levels, seedling growth, triacylglycerol mobilization and lipase activity were investigated. High salt concentrations resulted in retardation of seed germination. Seedling growth as measured by radicle length was severely reduced by NaCl doses higher than 50 mM. Moreover, the mobilization of storage oil in control rapeseed seedlings, started about 24 h after imbibition. As for germination and growth, elevated salt concentrations are found to delay triacylglycerol degradation. Experiments using triolein as substrate indicated clearly that lipase activity was inhibited by salt treatment.

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