The structure and ontogeny of the Hilum Region in Sorghum bicolor

Giles, K.L. and Bassett, H C M and Eastin, J.D. (1975) The structure and ontogeny of the Hilum Region in Sorghum bicolor. Australian Journal of Botany, 23 (5). pp. 795-802.

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Abstract

The black layer in sorghum grains could be seen 15 days after pollination and was identified by selective staining as being due to phenolic deposits within the phloem parenchyma cells. These deposits did not stain positively as tannins with the vanillin-hydrochloric acid reagent. The phloem parenchyma cells became blocked with mucilage and pectic compounds at maturity, forming the closing layer of the hilum, causing the seed to dry out and the black layer to become more distinct. The ontogeny and structure of the black layer to sorghum is discussed with reference to that of maize

Item Type: Article
Author Affiliation: Plant Physiology Division, Department of Scientific and Industrial research, Palmerston North, New Zealand
Subjects: Plant Protection
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 29 Aug 2012 06:01
Last Modified: 29 Aug 2012 06:02
URI: http://eprints.icrisat.ac.in/id/eprint/7572

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