Relationship between genetic distance and heterosis for yield and morphological traits in winter canola (Brassica napus L.)

1995 ◽  
Vol 91 (1) ◽  
pp. 118-121 ◽  
Author(s):  
M. Ali ◽  
L. O. Copeland ◽  
S. G. Elias ◽  
J. D. Kelly
Keyword(s):  
Brassica Napus ◽  
Genetic Distance ◽  
Morphological Traits ◽  
Brassica Napus L ◽  
Winter Canola

scholarly journals Predicting heterosis and f1 performance in spring rapeseed (Brassica napus L.): Genetic distance based on molecular or phenotypic data?

Genetika ◽  
2020 ◽  
Vol 52 (2) ◽  
pp. 661-672
Author(s):  
Mirjana Jankulovska ◽  
Sonja Ivanovska ◽  
Ana Marjanovic-Jeromela ◽  
Dragana Miladinovic ◽  
Biljana Kuzmanovska ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Genetic Distance ◽  
Brassica Napus L ◽  
Phenotypic Data

scholarly journals Seed Yield and Water Productivity of Irrigated Winter Canola (Brassica napus L.) under Semiarid Climate and High Elevation

Agronomy ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 90 ◽  
Author(s):  
Koffi Djaman ◽  
Michael O’Neill ◽  
Curtis Owen ◽  
Daniel Smeal ◽  
Margaret West ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Seed Yield ◽  
Water Productivity ◽  
High Elevation ◽  
Brassica Napus L ◽  
Winter Canola ◽  
Semiarid Climate

Heterosis and genetic distance in rapeseed (Brassica napus L.): use of kinship coefficient

Genome ◽  
1987 ◽  
Vol 29 (1) ◽  
pp. 11-18 ◽  
Author(s):  
M. Lefort-Buson ◽  
Y. Dattee ◽  
B. Guillot-Lemoine
Keyword(s):  
Brassica Napus ◽  
Genetic Distance ◽  
Seed Yield ◽  
Inbred Lines ◽  
Kinship Coefficient ◽  
Agronomic Characters ◽  
Brassica Napus L ◽  
Cross Prediction ◽  
Yield Variation ◽  
The Relationship

Different agronomic characters have been measured on F1 rapeseeds from inbred lines that are more or less related and on their parents, in Rennes (France). Two different experiments were conducted over a 2-year period. A study of the relationship between heterosis and genetic distance, measured here by a function of kinship coefficient (1–ψ), was carried out in two steps. First, four classes of increasing 1–ψ values were defined and related to heterosis value and F1 performance. The results point out a significant effect of the class, whatever the character and the year. Moreover, the best heterotic hybrids were always obtained with lines unrelated and coming from two different geographic pools. Then, the efficiency of 1–ψ for predicting heterosis or cross values was tested: it varies with year and character. For example, in the first experiment average relationship between lines was high, about 50% of seed yield variation owing to mean parent heterosis was explained with the 1–ψ distance. Key words: heterosis, cross prediction, genetic distance, kinship coefficient, Brassica napus L.

scholarly journals Heterosis and genetic distance in rapeseed (Brassica napus L.). Use of different indicators of genetic divergence in a 7 × 7 diallel

Agronomie ◽  
1986 ◽  
Vol 6 (9) ◽  
pp. 839-844 ◽  
Author(s):  
Marianne LEFORT-BUSON ◽  
Brigitte GUILLOT-LEMOINE ◽  
Yvette DA TTÉE
Keyword(s):  
Brassica Napus ◽  
Genetic Distance ◽  
Genetic Divergence ◽  
Brassica Napus L

scholarly journals In-field film antitranspirant application shows potential yield protection from flowering-stage drought periods in winter canola (Brassica napus)

2017 ◽  
Vol 68 (3) ◽  
pp. 243 ◽  
Author(s):  
Michele Faralli ◽  
Ivan G. Grove ◽  
Martin C. Hare ◽  
Peter S. Kettlewell
Keyword(s):  
Brassica Napus ◽  
Yield Loss ◽  
Water Saving ◽  
Drought Event ◽  
Flowering Stage ◽  
Phenological Stages ◽  
Brassica Napus L ◽  
Potential Yield ◽  
Winter Canola ◽  
Significant Yield

Crop-management solutions that simulate plant water-saving strategies might help to mitigate drought damage in crops. Winter canola (Brassica napus L.) is significantly drought-sensitive from flowering to mid-pod development, and drought periods lead to significant yield losses. In this study, the drought-protection efficacy of different chemicals with antitranspirant activity applied just before key drought-sensitive phenological stages was tested on field-grown canola in two years. Drought was artificially imposed with rain shelters. The results suggest that in-field application of 1 L ha–1 of antitranspirant (Vapor Gard (VG), a.i. di-1-p-menthene) at GS6.0 (BBCH growth scale, initiation of flowering) mitigated drought-induced yield loss leading to a 22% seed-yield benefit on average over 2 years of experiments compared with the unsprayed unirrigated plots. No significant yield responses were found from application at GS7.0, with increasing VG concentrations (i.e. 2 and 4 L ha–1), or with an antitranspirant with short-lasting effectiveness. The data suggest that in field conditions where drought occurs during the flowering stage, application of 1 L ha–1 of VG just before the drought event can reduce yield loss. This result should encourage further work on water-saving management strategies during key drought-sensitive phenological stages as drought mitigation tools in canola and under different environments.

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