Boron efficiency in oilseed rape: II. Development of a rapid lab-based screening technique

James C. R. Stangoulis, Michael J. Webb, Robin D. Graham

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The level of genotypic variation in tolerance to low boron (B) supply was investigated in solution culture grown, 10 day old (D10) oilseed rape (Brassica napus L.) plants, by using a rapid screening technique whereby root length, root elongation rate and total root dry weight were used to indicate plant response to B. Root length proved more reliable in determining genotype responses, and was used to characterise a total of 61 genotypes, of which Huashuang 2, Nangchang rape, Huashuang 1 and Zhongyou 821, and to a lesser extent, Zheyou 2, Dunkeld, Xinza 2, Nangjin 2051, 92-58, 92-13, and Awassa 115 exhibited some form of tolerance to low B supply. The genotypic rankings based on this early vegetative response corroborated with field based B-efficiency. The results demonstrate the expression of the B-efficiency mechanism in the early vegetative stages of plant growth, and establish the value of root length as a selection criterion for B-efficiency in oilseed rape.

Original languageEnglish
Pages (from-to)253-261
Number of pages9
JournalPlant and Soil
Volume225
Issue number1-2
DOIs
Publication statusPublished - 2000
Externally publishedYes

Keywords

  • Boron
  • Efficiency
  • Genotypic variation
  • Micronutrient
  • Oilseed rape

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