Anatomical and micromorphological characteristics of the seed coat of field pea (Pisum sativum L.) genotypes in relation to cracks and damage of seeds

Jelena Milovan Lazarević, Lana Zorić, Đura Karagć, Branko Milošević, Dunja Karanović, Dubravka Milić, Aleksandra Tepić, Jadranka Luković

Abstract


In this paper, we present the morphological characteristics of the seed and micromorphological, anatomical and chemical characteristics of the seed coat of pea (Pisum sativum L.) genotypes, Jezero, Javor and NS Junior. Our aim was to investigate whether these genotypes can be differentiated based on seed coat morphoanatomical characteristics, depending on the harvest treatment. The observations and measurements of seed coat cross-sections were performed using light microscopy. The seed coat surface was observed using SEM. A tuberculate seed coat surface characterized all examined pea genotypes, and the average diameter of the tubercle was about 12 µm. Statistical and laboratory analyses revealed that major damage was the most frequent defect type as the result of mechanized harvest in all the examined genotypes. Genotype NS Junior had the shortest seed length (6.1 mm). Micromorphological analysis revealed that the seed surface was tuberculate in all genotypes. The genotype Jezero had the highest number of tubercle ribs (11.0) and a significantly higher proportion of parenchyma tissue (50.6%), while NS Junior was characterized by the greatest share of macrosclereids (49.8%). The highest number of osteosclereids (832/mm2) was counted in genotype Javor. In addition, genotype NS Junior stands out due to the highest percentage of crude fiber (62.75 g/100g) in the seed coat. There was a marked difference among the studied genotypes with regard to the seed coat morphoanatomical characteristics, which is confirmed by the results of multivariate discriminant analysis (MDA). These results suggested that the morphological, micromorphological and anatomical characteristics of the seed might have an impact on the seed coat damage level at harvest.

https://doi.org/10.2298/ABS160612126L

Received: June 12, 2016; Revised: September 13, 2016; Accepted: October 19, 2016; Published online: November 18, 2016

How to cite: Lazarević J, Zorić L, Karagić Đ, Milošević B, Karanović D, Milić D, Tepić A, Luković J. Anatomical and micromorphological characteristics of the seed coat of field pea (Pisum sativum L.) genotypes in relation to cracks and damage of seeds. Arch Biol Sci. 2017;69(3):503-12.


Keywords


anatomy; seed micromorphology; seed coat;

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