Prognosis of boron deficiency in oilseed rape (Brassica napus) by plant analysis

Wei, Youzhang, Bell, R. W., Yang, Yuai, Zhengqian Ye, Wang, Ke and Huang, Longbin (1998) Prognosis of boron deficiency in oilseed rape (Brassica napus) by plant analysis. Australian Journal of Agricultural Research, 49 5: 867-874. doi:10.1071/A97156


Author Wei, Youzhang
Bell, R. W.
Yang, Yuai
Zhengqian Ye
Wang, Ke
Huang, Longbin
Title Prognosis of boron deficiency in oilseed rape (Brassica napus) by plant analysis
Journal name Australian Journal of Agricultural Research   Check publisher's open access policy
ISSN 0004-9409
Publication date 1998
Sub-type Article (original research)
DOI 10.1071/A97156
Volume 49
Issue 5
Start page 867
End page 874
Total pages 8
Place of publication Melbourne
Publisher CSIRO
Language eng
Subject 070306 Crop and Pasture Nutrition
Abstract In areas where soils are low in boron (B), the ability to predict B deficiency by plant analysis depends on the development of calibrated standards and offers the potential of preventing or minimising losses in seed yield. The present study aimed at establishing relationships between seed yield in winter oilseed rape (Brassica napus) and B concentrations in defined leaves during growth before fiowering and from them to determine critical values for the prognosis of B deficiency. Oilseed rape cv. Zheyouyou 2 was grown in 10 field experiments in Zhejiang province, south-east China, with B rates from 0 to 3· 3 kg/ha. At 4 of the sites, oilseed rape was resown in the following year to assess seasonal effects on critical concentrations. Experiments were conducted on the 3 main soil groups on which oilseed rape is grown in south-east China. The youngest open leaf (YOL) was selected as the sampling part because its B concentrations were strongly responsive to increasing B supply and well correlated with seed yield response. In this study, the best model of the relationship between YOL B concentration and yield was the Mitscherlich equation, which explained 68-89% of the variation in the data. The calculated critical range in the YOL at seedling stage was 20-25 mg B/kg and appeared to be valid in 2 seasons and on 3 soil types. The critical B range for prognosis of B deficiency was found to predict consistently those crops in farmers" fields that had low seed yield and low soil B, but needs to be evaluated in other growing environments especially those for spring rape.
Keyword critical concentration,
youngest open leaf
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Mined Land Rehabilitation Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
Google Scholar Search Google Scholar
Created: Mon, 12 Jul 2010, 14:11:03 EST by Laura McTaggart on behalf of Sustainable Minerals Institute