Effect of irrigation and nitrogen fertilizer on yield, oil content, nitrogen accumulation and water use of canola (Brassica napus L.)

1991 ◽  
Vol 29 (3) ◽  
pp. 249-260 ◽  
Author(s):  
A. J. Taylor ◽  
C. J. Smith ◽  
I. B. Wilson
Keyword(s):  
Brassica Napus ◽  
Water Use ◽  
Nitrogen Fertilizer ◽  
Oil Content ◽  
Nitrogen Accumulation ◽  
Brassica Napus L

scholarly journals Unravelling the Complex Interplay of Transcription Factors Orchestrating Seed Oil Content in Brassica napus L.

2021 ◽  
Vol 22 (3) ◽  
pp. 1033
Author(s):  
Abirami Rajavel ◽  
Selina Klees ◽  
Johanna-Sophie Schlüter ◽  
Hendrik Bertram ◽  
Kun Lu ◽  
...  
Keyword(s):  
Gene Expression ◽  
Transcription Factors ◽  
Brassica Napus ◽  
Oil Content ◽  
Seed Oil ◽  
Seed Oil Content ◽  
Complex Interplay ◽  
Brassica Napus L ◽  
Data Set ◽  
Developmental Switches

Transcription factors (TFs) and their complex interplay are essential for directing specific genetic programs, such as responses to environmental stresses, tissue development, or cell differentiation by regulating gene expression. Knowledge regarding TF–TF cooperations could be promising in gaining insight into the developmental switches between the cultivars of Brassica napus L., namely Zhongshuang11 (ZS11), a double-low accession with high-oil- content, and Zhongyou821 (ZY821), a double-high accession with low-oil-content. In this regard, we analysed a time series RNA-seq data set of seed tissue from both of the cultivars by mainly focusing on the monotonically expressed genes (MEGs). The consideration of the MEGs enables the capturing of multi-stage progression processes that are orchestrated by the cooperative TFs and, thus, facilitates the understanding of the molecular mechanisms determining seed oil content. Our findings show that TF families, such as NAC, MYB, DOF, GATA, and HD-ZIP are highly involved in the seed developmental process. Particularly, their preferential partner choices as well as changes in their gene expression profiles seem to be strongly associated with the differentiation of the oil content between the two cultivars. These findings are essential in enhancing our understanding of the genetic programs in both cultivars and developing novel hypotheses for further experimental studies.

A note on sampling technique for winter oil-seed rape (Brassica napus L.)

1982 ◽  
Vol 99 (1) ◽  
pp. 225-227 ◽  
Author(s):  
D. H. Scarisbrick ◽  
A. Clewer ◽  
R. W. Daniels
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Sampling Technique ◽  
Brassica Napus L ◽  
Plant Weight ◽  
Oil Seed ◽  
Oil Seed Rape ◽  
Sampling Problems

The response of three spring cultivars of oilseed rape to five levels of nitrogen fertilizer (0 to 200 kg/ha) was studied during 1978–9 (Scarisbrick, Daniels & Alcock, 1981). Sampling problems, practical difficulties of measuring yield components, and the high co-efficients of variation for these data were discussed. During the course of further investigations on the winter cultivar Jet Neuf (established on approximately 75000 ha in the U. K. during 1980–1) within-plot variability for plant weight was assessed in order to indicate the size of sample necessary to compare treatment means.

scholarly journals Effects of sulphur on the yield, yield component characters and oil content of oilseed rape

2021 ◽  
Vol 66 (1) ◽  
pp. 17-25
Author(s):  
Valiollah Rameeh ◽  
Maryam Niakan ◽  
Mohammad Mohammadi
Keyword(s):  
Brassica Napus ◽  
Plant Height ◽  
Oilseed Rape ◽  
Seed Yield ◽  
Oil Content ◽  
Statistical Difference ◽  
Mean Value ◽  
Yield Component ◽  
Brassica Napus L ◽  
Significant Statistical Difference

The effects of four sulphur levels: S0, S1, S2 and S3, including 0, 12, 24 and 36 kg S ha-1, respectively, along with 115 kg N ha-1 were studied on yield-related traits of oilseed rape (Brassica napus L.). The significant variance of treatments was determined for plant height, yield component characters, seed yield and oil content. The sulphur application significantly increased most of the traits compared to the S0 level. The S3 (36 kg S ha-1) treatment led to the highest mean value of plant height (132 cm) which was classified with S2 (24 kg S ha-1) in the same statistical group. Sulphur had an increasing effect on pods per plant, and it ranged from 92 to 196 for S0 and S3 applications, respectively. S0 and S1 with 92 and 121 pods per plant were grouped in the same statistical group. In addition, S2, and S3 with 165 and 196 pods per plant showed no significant statistical difference. The sulphur application significantly increased seed yield compared to control (S0 level), and it ranged from 2744 to 3215 kg ha-1 in S0 and S3, respectively. The average oil contents of 45.69, 46.96, 47.46 and 49.53 % were detected for 0, 12, 24 and 36 kg S ha-1, respectively.

scholarly journals Biplot analysis of seed yield and oil content combining ability in rapeseed (Brassica napus L.)

2016 ◽  
Vol 10 (9) ◽  
pp. 1238-1243
Author(s):  
Gul Ghani ◽  
◽  
Raziuddin ◽  
Antonio Teixeira do Amaral Júnior ◽  
Ibni Amin Khalil ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Seed Yield ◽  
Combining Ability ◽  
Oil Content ◽  
Brassica Napus L ◽  
Biplot Analysis

GENETICS OF PROTEIN AND OIL CONTENT IN SUMMER RAPE: HERITABILITY, NUMBER OF EFFECTIVE FACTORS, AND CORRELATIONS

1977 ◽  
Vol 57 (3) ◽  
pp. 937-943 ◽  
Author(s):  
BAHRAM GRAMI ◽  
B. R. STEFANSSON ◽  
R. J. BAKER
Keyword(s):  
Brassica Napus ◽  
Oil Content ◽  
Broad Sense ◽  
Broad Sense Heritability ◽  
Brassica Napus L ◽  
Breeding Programs ◽  
Effective Factors ◽  
Percent Protein ◽  
Oilseed Breeding ◽  
Parental Differences

The estimates of broad sense heritability in the F2 generation derived from a cross involving two summer rape (Brassica napus L.) cultivars were approximately 0.26 for each of percent protein and percent oil, and 0.33 for the "sum" of protein and oil as a percentage of the seed. The number of effective factors conditioning parental differences in percent protein, percent oil, and sum were estimated as five to seven, one, and two, respectively. Average phenotypic and genotypic correlations between protein and oil content were −0.81 and −0.71, respectively. These strong negative correlations, often considered undesirable, can be utilized in oilseed breeding programs by selecting for the sum of protein and oil rather than for either component.

Screening rhizobacteria for improving the growth, yield, and oil content of canola (Brassica napus L.)

2004 ◽  
Vol 55 (2) ◽  
pp. 187 ◽  
Author(s):  
H. N. Asghar ◽  
Z. A. Zahir ◽  
M. Arshad
Keyword(s):  
Brassica Napus ◽  
Grain Yield ◽  
Root Length ◽  
Oil Content ◽  
Growth Promotion ◽  
Brassica Napus L ◽  
Growth Promoting ◽  
1000 Grain Weight ◽  
Number Of Branches

One hundred rhizobacteria previously isolated from the rhizospheres of Brassica species were screened for their growth promoting activity in Brassica napus L. under gnotobiotic conditions. Results revealed that 58% of the rhizobacteria increased root length (up to 139%), 39% enhanced shoot length (up to 78%), and shoot weight (up to 72%) of Brassica napus L. Based upon growth promotion of B. napus seedlings under gnotobiotic conditions, 10 promising plant-growth-promoting rhizobacteria (PGPR) were selected and tested for their effectiveness in growth promotion, yield, and oil content of B. napus grown in pots. The pot trials revealed that inoculation with selected PGPR increased plant height, root length, number of branches per plant, stem diameter, number of pods per plant, 1000-grain weight, grain yield, and oil content over a range of 7–57% above the uninoculated control. These isolates were then assayed for their ability to produce auxins in vitro in the presence and absence of L-tryptophan. Regression analysis showed that in vitro auxin production by these bacteria was significantly related to the number of branches and oil content of B. napus. It is highly likely that improvement in growth and yield of the inoculated plants is due to an increase in the number of branches per plant, since there was a positive correlation of this growth parameter with the number of pods per plant, 1000-grain weight, grain yield, and seed oil content. Results indicated that simultaneous screening of rhizobacteria for growth promotion under gnotobiotic conditions and in vitro production of auxins could be a useful approach for selecting effective PGPR.

Effect of inter- and intragenic epistasis on the heritability of oil content in rapeseed (Brassica napus L.)

2012 ◽  
Vol 126 (2) ◽  
pp. 435-441 ◽  
Author(s):  
Tobias Würschum ◽  
Hans Peter Maurer ◽  
Felix Dreyer ◽  
Jochen C. Reif
Keyword(s):  
Brassica Napus ◽  
Oil Content ◽  
Brassica Napus L
Sign in / Sign up

Export Citation Format

Share Document