Skip to main content
Log in

An effect of shade on the boron requirement for leaf blade elongation in black gram (Vigna mungo L. Hepper)

  • Published:
Plant and Soil Aims and scope Submit manuscript

Abstract

The present experiment was undertaken to examine whether shading affects the critical boron (B) concentration for leaf blade elongation in black gram. Six days after germination (D6), black gram seedlings were transferred to 8 pairs of pots containing basal nutrient solution: one pot of each pair contained 1 μM H3BO3 and the other 10 μM H3BO3. On D10, one day after the emergence of the first trifoliolate leaf blade (TF1) and one day before the emergence of TF2, four pairs of pots were shaded, decreasing the light intensity they received in the glasshouse to about 35% of full sunlight compared with 70% received by the unshaded plants. The response to B supply of dry matter (DM) and elongation rate (LBER) of TF2 were less pronounced in shaded than in unshaded plants. Critical B concentrations for LBER in TF2 of black gram were 10 mg B kg-1DM in shaded and 15 mg B unshaded plants, suggesting that shading may have decreased the B requirement for LBER. Thus the present results suggest that light may need to be considered when setting critical values for the diagnosis of B deficiency in black gram.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Albert L S and Wilson M 1960 Plant Physiol. 36, 244–251.

    Google Scholar 

  • Asher C J and Blamey F P C 1987 J. Plant Nutrition. 10, 1371–1380.

    Google Scholar 

  • Bell R W, McLay L, Plasket D, Dell B and Loneragan J F 1989 Aust. J. Agric. Res.

  • MacVicar R and Struckmeyer BE 1946 Bot. Gaz. 107, 454–461.

    Google Scholar 

  • Noppakoonwang R N 1993 Diagnosis of Boron Deficiency in Black Gram. PhD Thesis, Murdoch University, Western Australia.

    Google Scholar 

  • Salisbury F B and Ross C W 1978 In Plant Physiology. Ed. EJ Carey, 2nd ed. p 442. Wadsworth Publishing Company Inc., Belmont, California.

    Google Scholar 

  • Tanaka H 1966 Plant and Soil. 25, 425–434.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Noppakoonwong, R.N., Bell, R.W., Dell, B. et al. An effect of shade on the boron requirement for leaf blade elongation in black gram (Vigna mungo L. Hepper). Plant Soil 155, 317–320 (1993). https://doi.org/10.1007/BF00025046

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00025046

Key words

Navigation