Abstract

Seed quality is defined by several factors such as genetic, physical, physiological and sanitary attributes. Even with all good factors involved, germinating power loss occurs. However, this loss may be reduced by performing procedures to maintain quality, as storage local and packaging. Thus, the objective of the work was to identify the best environment and packaging for storing niger seeds by analyzing germination and seedling biometry. Samples were separated according to treatments being three types of packaging: paper bag (permeable), plastic bag (semi-permeable) and glass container (impermeable). All packages were storage in two environment: storage shad and cold chamber. For all evaluations sub-samples were removed of each type of pack and environment being at one day after harvest (control), 30, 60, 90, 120 and 150 days of storage. The work was conducted at Laboratory of Seed Technology of Grand Dourados Federal University (UFGD). The experimental design was completely randomized, in a factorial scheme 6 × 6 (treatments x days of storage), with four replicates of 50 seeds each. Sowing was performed between "germitest" papers and rolls were kept in a germinator at a temperature of 25°C under constant white light, for 10 days. The traits evaluated were: first count of germination, percentage of germination and seedling length. Storage locations and type of packaging interfered significantly to development of niger (Guizotia abyssinica (L.f.) Cass.) seed germination. The best results in germination were found in seeds stored in glass container in storage shed and in plastic bag in cold chamber.

Highlights

  • Niger (Guizotia abyssinica (L.f.) Cass.), called Ramtil or Kalatil in India and Noog in Ethiopia is considered a crop with satisfactory oil and seed yield under poor conditions of soil fertility, moisture stress and low managements (Namarata et al, 2018), this species is sowing in large scales in mentioned countries

  • In Brazil, niger highlighted as a promissory crop for bio fuel production as it count with oil content between 30

  • Seed Analysis, which occurs with other exotic species with bio fuel potential (Souza et al, 2009; Gordin et al, 2012; Gordin et al, 2014)

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Summary

Introduction

In Brazil, niger highlighted as a promissory crop for bio fuel production as it count with oil content between 30 –. There is lack of information on physiological quality in which niger seeds are produced, especially regarding to seed germination This information is scarce due to methods of analysis not included in the Brazilian Rules for. One of the problems faced in production and subsequent availability of seeds for sale is the knowledge about storage possibilities. This constitutes an essential requirement for genetic resources conservation in germplasm banks and, especially, to facilitate seeds production logistics and commercialization of established cultivars (Carvalho et al, 2017)

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