Stomatal frequency, size and distribution


Relationships between 2X hordeum sp., 2X Secale sp. and 2X, 4X, 6X triticum spp. for stomatal frequency, size and distribution.

by Rajendra B. R., Mujeeb K. A., Bates L. S. (1978)

in Environ. Exp. Bot., 18: 33-37. –



Stomatal size, frequency, and distribution were examined on the abaxial and adaxial surfaces of flag leaves sampled from 18 accessions of Hordeum vulgare, Secale cereale, Triticum monococcum L., T. turgidum L. var. durum, and T. aestivum L. var. aestivum.

The cultivars differed in frequency on the abaxial and adaxial surfaces ( P ≦ 0.01). The adaxial surface had a significantly higher stomatal frequency than the abaxial side.

Interaction significance between accessions and surface was mainly contributed by Secale sp. and Triticum sp. since all Hordeum sp. accessions were similar. Diploid wheat had the highest stomatal frequency, which decreased with increasing ploidy.

Plant height also influenced stomatal size and frequency in Secalesp.

Stomatal size and frequency, along with pubescence, could serve as micromorphological markers in inheritance studies in interspecific and intergeneric hybridization.


Published by

Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.

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