A new alternative mono-layer matrix for pelleting cucumber (Cucumis sativus) seeds

Abstract

Cucumber seeds are small, oblong, and flat, usually measuring 3–4 mm in length. However, their susceptibility to deterioration and sensitivity to poor storage conditions can result in decreased germination rates and reduced overall vigor. Nevertheless, seed pelleting can effectively shield seeds from harsh environmental factors and slow down their deterioration, thereby preserving the seed quality. The objective of this study was to develop a matrix for pelleting cucumber seeds. The percent germination and radical emergence, as well as other important parameters of the experimental pellets were compared to not pelleted cucumber seeds in laboratory and greenhouse conditions. The treatments in this experiment involved a mono-layer of pumice, talcum, bentonite, calcium sulphate, calcium carbonate, or zeolite, used as a matrix for pelleted seed and bound with methylhydroxyethyl cellulose (MHEC). Seeds treated with talcum or bentonite did not result in smooth and fragile pellets, whereas those treated with CaSO4 exhibited low levels of friability (3.38%) and pellet dissolution (5.11 seconds). Seeds pelleted with CaSO4 showed significantly different germination under laboratory and greenhouse conditions compared to other matrices and to not pelleted seed. This indicates that CaSO4 was suitable for pelleting ‘YokKaow’ variety of cucumber seed.

Keywords

• calcium sulphate
• methylhydroxyethyl cellulose
• cucumis sativus
• cucumber seeds pelleting