Abstract
A serious problem of vegetable production is the quality of sown seeds. In this regard, assessment of seed quality before sowing and storage is of great practical interest. The modern level of scientific research requires the use of instrumental automated methods of seed quality evaluation, allowing to obtain more information and in a shorter time. The material for the study was a variety of samples from the collection of Brassica oleracea L., var. capitata, Raphanus sativus L., var. radicula, and Lepidium sativum L. seeds from the Federal Scientific Center of Vegetable Breeding and the Timofeev Selection Station. Digital X-ray images of seeds were obtained using a mobile X-ray diagnostic device PRDU-02. Automatic analysis of digital X-ray images was performed in the software “VideoTesT-Morphology 5.2.” The following latent defects of cabbage seeds of economic importance were revealed and identified: irregular darkening, significant “patterning” with deep separation of embryo parts, “angularity of seeds” leading to the loss of their viability. Automatic analysis of digital X-ray images of seeds confirmed the informativeness of brightness indices of digital X-ray images, as well as shape indices. Their connection with sowing qualities of the studied seeds was established.
Highlights
Poor seed quality sometimes delays the development of domestic crop production
Analysis of the internal structure of seeds was performed according to the “Methodology of radiography in agriculture and crop production” [19] and “Methodological guidelines for radiographic analysis of vegetable seeds quality” [9] at the Department of Electronic Instruments and Devices, St. Petersburg Electrotechnical University (SPbETU)
The experimental data obtained demonstrate the effectiveness of the method of microfocus X-ray radiography for the analysis of the germination of cabbage seeds related to the peculiarities of their internal structure
Summary
Poor seed quality sometimes delays the development of domestic crop production.Modern technologies that provide direct and precise sowing of seeds in the ground, eliminating the thinning of crops, as well as methods for adjusting plant stands, require uniform seeds with high field germination.During the period of generative development, plants are demanding to the conditions of light, heat and moisture supply [1]. Poor seed quality sometimes delays the development of domestic crop production. Modern technologies that provide direct and precise sowing of seeds in the ground, eliminating the thinning of crops, as well as methods for adjusting plant stands, require uniform seeds with high field germination. During the period of generative development, plants are demanding to the conditions of light, heat and moisture supply [1]. Climatic conditions in most regions of our country are unfavorable for seed production, poor technical equipment of seed production and post-harvest treatment has a negative impact. The situation in seed production of vegetable crops is acute. Large morphobiological diversity, increased heat demand of the majority of species requires a careful approach to the organization of seed production
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