Short and Long Periods of Water Stress During Different Growth Stages Of Canola (Brassica napus L.): Effect on Yield, Yield Components, Seed Oil and Protein Contents

2006 ◽  
Vol 5 (2) ◽  
pp. 336-341 ◽  
Author(s):  
M. Ghobadi . ◽  
M. Bakhshandeh . ◽  
G. Fathi . ◽  
M.H. Gharineh . ◽  
K. Alami-Said . ◽  
...  
Keyword(s):  
Water Stress ◽  
Brassica Napus ◽  
Yield Components ◽  
Seed Oil ◽  
Growth Stages ◽  
Brassica Napus L ◽  
Effect On Yield ◽  
Different Growth Stages

scholarly journals Growth And Yield Components Of Wheat Under Water Stress Of Different Growth Stages

1970 ◽  
Vol 36 (3) ◽  
pp. 455-468 ◽  
Author(s):  
M Akram
Keyword(s):  
Triticum Aestivum ◽  
Water Stress ◽  
Yield Components ◽  
Growth And Yield ◽  
Growth Stages ◽  
Wheat Cultivars ◽  
Yield And Yield Components ◽  
Relative Water ◽  
Different Growth Stages ◽  
Water Contents

A field experiment was conducted to determine the sensitivity of wheat to water stress and changes in water relations and yield of wheat (Triticum aestivum L.) under water stress conditions applied at different growth stages. The experiment comprised of two wheat cultivars and four water stress treatments, maintained by withholding water at tillering, anthesis, and at both stages. Water stress caused reduction in leaf relative water contents, water potential, osmotic potential, turgor potential, growth and yield components of both the wheat cultivars. The results indicated that high value of relative water contents were associated with increased yield and yield components. Consecutive stresses at both growth stages caused severe reduction in yield and yield components in both cultivars of wheat. Keywords: Water stress; water relations; growth; Triticum aestivum; yield components. DOI: http://dx.doi.org/10.3329/bjar.v36i3.9264 BJAR 2011; 36(3): 455-468

Effects of water stress on glucosinolate and oil concentrations in the seeds of rape (Brassica napus L.) and turnip rape (Brassica rapa L. var. silvestris [Lam.] Briggs)

1987 ◽  
Vol 27 (5) ◽  
pp. 707 ◽  
Author(s):  
RJ Mailer ◽  
PS Cornish
Keyword(s):  
Water Stress ◽  
Brassica Napus ◽  
Brassica Rapa ◽  
Seed Oil ◽  
Growing Season ◽  
Brassica Napus L ◽  
Plant Water Stress ◽  
Significant Difference ◽  
Influence Of Water ◽  
Glucosinolate Concentration

Growing-season conditions influence the concentration of glucosinolates in the meal of rapeseed, but the reasons for this are unknown. We studied the effect of water stress on glucosinolate concentration in the seed meal of Brassica napus cv. Wesbrook and Brassica rapa cv. Bunyip. Plants were either wellwatered or given a reduced supply of water which was managed to produce a desired degree of plant water stress either throughout growth or only after flowering. Glucosinolate concentration in seeds increased (P<0.01) in both cultivars from an average 18.2 �mol/g in unstressed plants to 35.0 �mol/g under the influence of water stress. There was no significant difference between the 2 stressed treatments. Water stress also decreased (P < 0.0 1) seed oil concentrations (from 36.9 to 31.4%), yields (from 5.3 to 0.9 g/plant) and 1000-grain weights (from 4.1 to 3.0 g).

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.

Development of Organically Complexed-Bioaugmented Boron-Coated DAP and Its Effect on Yield and Quality of Canola (Brassica napus L.)

2021 ◽  
Author(s):  
Tayyaba Samreen ◽  
Muhammad Imran ◽  
Zahir Ahmad Zahir ◽  
Muhammad Zulqernain Nazir ◽  
Saima Noureen ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Brassica Napus L ◽  
Yield And Quality ◽  
Effect On Yield

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.

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