Effect of Storage Periods on Physical Quality and Seed Vigor of Four Varieties of Sorghum (Sorghum Bicolor [L.] Moench)

Paul B Timotiwu,Ni Wayan Ayung Surya Asih,Agustiansyah ,Eko Pramono

doi:10.22158/ra.v2n2p29

Abstract

The availability of good physical quality and high seed vigor is expected to occur with good handling of storage. The purpose of this study was to determine the effect of two storage periods [10 months (p1) and 12 months (p2)] and different sorghum varieties of Kawali (V1), Talaga Bodas (V2), Super-1 (V3), and Pahat (V4) on the physical quality and sorghum seed vigor. This experiment was conducted at the Laboratory of Seeds and Plant Breeding, Faculty of Agriculture, the University of Lampung during November 2015 to November 2016. The experiment was laid out in Randomized Complete Block Design (RCBD) with two replications. The variable damaged seed was higher by 24.19% compared to seeds stored for 10 months at 14.73%. The percentage of total normal seedling after store 12 months (59.50%) was lower than 10 months (78.00%). Speed germination of seed after store 12 months (24.58%/day) was lower than the stored 10 months (36.47%/day). Tetrazolium test for vigor showed no different results from germination test results. The variety that has the best seedling vigor was Super-1 indicated by primary root length and dry weight of normal seedlings.

Highlights

Sorghum (Sorghum bicolor (L.) Moench) is a plant similar to corn in terms of agronomic and nutritional value (Neto et al, 2017)
3.2 Effect of Storage Period on the Physical Quality and Vigor of Sorghum Seed (Sorghum Bicolor [L.] Moench.) The results showed that all varieties were stored at storage room with temperature of ± 18oC and RH ± 48%, the percentage of damaged seeds were higher for 12 months storage period than 10-month storage period, by 24.19% and 14.73%, respectively
All varieties of sorghum were stored at storage room with temperature of ± 18oC and RH ± 48% for 12 months yielded damage seed was higher than stored for 10 months, by 24.19%, 14.73%, respectively

Summary

Introduction

Sorghum (Sorghum bicolor (L.) Moench) is a plant similar to corn in terms of agronomic and nutritional value (Neto et al, 2017). According to Bortey et al (2016), seed storage period may affect the viability of seeds, as the reduction in seed viability is directly proportional to the increase of time This is because it allows the ripening embryo storage period and further accumulation of food that lasts for storage before germinating, these activities led to an increase in the metabolic processes in the seed. The seeds stored at low temperature storage germinated higher than those stored at high temperatures storage in all storage period (Mbofung, 2012) It because the seeds are stored in high temperatures increase the respiration rate and enzyme activity resulting in the overhaul of food reserves before the seeds germinate, the seeds decreased vigor and physical quality of seed. The study was conducted to determine the effect of storage period and varieties on the physical quality and vigor of sorghum seed

Objectives

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Conclusion