Winter oilseed rape (Brassica napus L.) is the most important oil crop
in Europe. Due to a continually increasing demand for rapeseed oil for
food and non-food uses, the production of hybrid cultivars with higher
seed and oil yields has become increasingly important in recent years.
However, the systematic use of heterosis for hybrid breeding in oilseed
rape is limited by the relatively narrow genetic basis of adapted
germplasm, which can impede the generation of distinct heterotic pools.
In the present study experimental hybrids were developed from a
population of 190 DH lines derived from a cross between an elite,
double-low seed quality (zero erucic acid, low glucosinolate content)
winter oilseed rape variety and a semi-synthetic line derived from a
genetically diverse resynthesised rapeseed line with high erucic acid
and glucosinolate contents. The DH lines were crossed with a male
sterile tester and the resulting test hybrids were examined for yield
performance at two locations in Hesse, Germany, that exhibit extreme
differences in climatic conditions and soil characteristics. Mid-parent
heterosis for seed yield was determined at both the agronomically
optimal location Rauischholzhausen and the marginal site Niederhorlen.
A value of up to 43% mid-parent heterosis for seed yield could be
observed among selected test hybrids compared to that of their parental
DH lines. The heterosis level for yield was particularly high at the
nutrient-poor site, where the best test hybrids showed significantly
higher yields than elite open-pollinating and hybrid varieties. This
demonstrates the suitability and adaptability of highly heterotic
rapeseed hybrids on marginal locations and suggests the existence of a
strong heterotic effect on nutrient uptake efficiency.
%0 Journal Article
%1 ISI:000252608200007
%A Gehringer, Anke
%A Snowdon, Rod
%A Spiller, Tobias
%A Basunanda, Panjisakti
%A Friedt, Wolfgang
%D 2007
%J BREEDING SCIENCE
%K IFZ Oilseed_rape heterosis hybrids marginal_conditions
%N 4
%P 315-320
%T New oilseed rape (Brassica napus) hybrids with high levels of heterosis for seed yield under nutrient-poor conditions
%V 57
%X Winter oilseed rape (Brassica napus L.) is the most important oil crop
in Europe. Due to a continually increasing demand for rapeseed oil for
food and non-food uses, the production of hybrid cultivars with higher
seed and oil yields has become increasingly important in recent years.
However, the systematic use of heterosis for hybrid breeding in oilseed
rape is limited by the relatively narrow genetic basis of adapted
germplasm, which can impede the generation of distinct heterotic pools.
In the present study experimental hybrids were developed from a
population of 190 DH lines derived from a cross between an elite,
double-low seed quality (zero erucic acid, low glucosinolate content)
winter oilseed rape variety and a semi-synthetic line derived from a
genetically diverse resynthesised rapeseed line with high erucic acid
and glucosinolate contents. The DH lines were crossed with a male
sterile tester and the resulting test hybrids were examined for yield
performance at two locations in Hesse, Germany, that exhibit extreme
differences in climatic conditions and soil characteristics. Mid-parent
heterosis for seed yield was determined at both the agronomically
optimal location Rauischholzhausen and the marginal site Niederhorlen.
A value of up to 43% mid-parent heterosis for seed yield could be
observed among selected test hybrids compared to that of their parental
DH lines. The heterosis level for yield was particularly high at the
nutrient-poor site, where the best test hybrids showed significantly
higher yields than elite open-pollinating and hybrid varieties. This
demonstrates the suitability and adaptability of highly heterotic
rapeseed hybrids on marginal locations and suggests the existence of a
strong heterotic effect on nutrient uptake efficiency.
@article{ISI:000252608200007,
abstract = {Winter oilseed rape (Brassica napus L.) is the most important oil crop
in Europe. Due to a continually increasing demand for rapeseed oil for
food and non-food uses, the production of hybrid cultivars with higher
seed and oil yields has become increasingly important in recent years.
However, the systematic use of heterosis for hybrid breeding in oilseed
rape is limited by the relatively narrow genetic basis of adapted
germplasm, which can impede the generation of distinct heterotic pools.
In the present study experimental hybrids were developed from a
population of 190 DH lines derived from a cross between an elite,
double-low seed quality (zero erucic acid, low glucosinolate content)
winter oilseed rape variety and a semi-synthetic line derived from a
genetically diverse resynthesised rapeseed line with high erucic acid
and glucosinolate contents. The DH lines were crossed with a male
sterile tester and the resulting test hybrids were examined for yield
performance at two locations in Hesse, Germany, that exhibit extreme
differences in climatic conditions and soil characteristics. Mid-parent
heterosis for seed yield was determined at both the agronomically
optimal location Rauischholzhausen and the marginal site Niederhorlen.
A value of up to 43% mid-parent heterosis for seed yield could be
observed among selected test hybrids compared to that of their parental
DH lines. The heterosis level for yield was particularly high at the
nutrient-poor site, where the best test hybrids showed significantly
higher yields than elite open-pollinating and hybrid varieties. This
demonstrates the suitability and adaptability of highly heterotic
rapeseed hybrids on marginal locations and suggests the existence of a
strong heterotic effect on nutrient uptake efficiency.},
added-at = {2008-06-04T14:34:51.000+0200},
author = {Gehringer, Anke and Snowdon, Rod and Spiller, Tobias and Basunanda, Panjisakti and Friedt, Wolfgang},
biburl = {https://www.bibsonomy.org/bibtex/26cd032d536b46854bb346d3978b48dff/ipzgiessen},
interhash = {f128259c52624bce37fa6e6d185cdaf9},
intrahash = {6cd032d536b46854bb346d3978b48dff},
issn = {1344-7610},
journal = {BREEDING SCIENCE},
keywords = {IFZ Oilseed_rape heterosis hybrids marginal_conditions},
number = 4,
pages = {315-320},
timestamp = {2008-07-18T14:09:10.000+0200},
title = {New oilseed rape (Brassica napus) hybrids with high levels of heterosis for seed yield under nutrient-poor conditions},
volume = 57,
year = 2007
}