Radiographic analysis and performance of coffee seeds

Abstract

Radiographic analysis has been efficient in identifying the main changes in the internal morphology of seeds, being increasingly used in quality control programs due to their practicality, objectivity and speed in obtaining the results. Despite these advantages, there are still no studies proving the efficiency of these techniques for coffee seed analysis. Thereby, the aim of this research was to evaluate the internal morphology of coffee seeds (Coffea arabicaL.) through the analysis of radiographic images and their relation with germination performance. Radiographic images of seeds of the cultivars Bourbon and Catucaí 20/15, each represented by six lots, were examined and the seeds were seeded and seedling emergence, shoot length, stem diameter and shoot dry mass were evaluated. Seeds of Bourbon presented high percentage of intact seeds, as well as better performance in the germination of the lots compared to Catucaí 20/15, which presented more incidence of damaged seeds and lower germination. The radiographic images allowed identifying seeds with malformations, tissue deterioration and damage caused by the coffee borer. This non-destructive imaging technique is efficient in identifying intact seeds, with potential to germinate and produce vigorus seedlings.

Dormancy and evaluation of the physical-physiological quality in sweet potato [Ipomoea batatas (L.) Lam.] seeds by image analysis

“…The X-ray device makes it possible to evaluate, in a few seconds, the internal morphology of the seeds and identify the main changes caused by various factors (Trujillo et al, 2019). From the images generated, several parameters can be obtained from the radiograph that can be correlated with results of other tests, such as germination and vigor tests, facilitating the classification of seed genotypes in terms of seed quality (Medeiros et al, 2018b).…”

Influence of Seed Initial Moisture Content, Storage Condition and Time of Storage on Seedling Growth Stages of Coffee (Coffea Arabica L.)

“…However, it loses its physiological quality very rapidly under usual storage conditions. Ellis et al (1990) have grouped coffee under intermediate category for seed behavior, because seed viability lasts for only short periods and must be planted soon after collection (Trujillo et al 2019). But one may need to store seeds for up to six months or more because of the gap between harvesting (during October and November) and sowing seeds (between April and August).…”