ALSERepository of Iași University of Life Sciences, ROMANIA

Nitrogen deficiency stress indices of seed yield in rapeseed (Brassica napus L.) genotypes

Show simple item record Rameeh, V. 2021-07-02T12:30:25Z 2021-07-02T12:30:25Z 2014-06-25
dc.identifier.citation Rameeh, V. 2015. ”Nitrogen deficiency stress indices of seed yield in rapeseed (Brassica napus L.) genotypes”. Cercetări Agronomice în Moldova 48 (1): 89-96. en_US
dc.description.abstract Most of investigations showed that nitrogen fertilizers gave substantial rapeseed yield increases even in diverse and contradicting conditions but in a few studies were focused on nitrogen deficiency stress effects. Some of important seed yield stress indices based on application and non application of nitrogen (N+ and N0) was studied using six spring rapeseed varieties and their 15 F2 progenies. Significant mean squares of genotypes effects were observed for potential yield (Yp), stress yield (Ys), mean productivity (MP), geometric mean productivity (GMP), tolerance index (TOL), stress tolerance index (STI) and stress susceptibility index (SSI), indicating significant genetic differences of the genotypes for the stress indices. The genotypes including PF7045/91 and RGS003 had the high mean values of MP and GMP and STI, therefore considered as high potential parents in both nitrogen application conditions. On the basis of low mean value of TOL and SSI indices, PF7045/91 and 19H were considered as tolerant to nitrogen deficiency stress. Most of the crosses with high mean values of MP, GMP and STI had at least one parent with high mean values of these stress indices. Significant positive correlation of Yp and Ys with MP, GMP and STI, indicating selection based on these stress indices will increase the Yp and Ys of the genotypes. Heterozygosity had important role for stability of traits in different conditions, therefore in compare to parents their F2 progenies had low mean values of SSI and TOL indices. en_US
dc.language.iso en en_US
dc.publisher "Ion Ionescu de la Brad" University of Agricultural Sciences and Veterinary Medicine, Iași en_US
dc.subject Diallel en_US
dc.subject Genetic parameters en_US
dc.subject Heterosis en_US
dc.subject Narrow-sense heritability en_US
dc.subject Rapeseed en_US
dc.title Nitrogen deficiency stress indices of seed yield in rapeseed (Brassica napus L.) genotypes en_US
dc.type Article en_US V. Rameeh, Agricultural and Natural Resources Research Center of Mazandran, Sari, Iran
dc.publicationName Cercetări Agronomice în Moldova
dc.volume 48
dc.issue 1
dc.publicationDate 2015
dc.startingPage 89
dc.endingPage 96
dc.identifier.eissn 2067-1865

Files in this item

This item appears in the following Collection(s)

Show simple item record