Morphophysiology of creol seeds in genotypes of Phaseolus vulgaris L.

Abstract

Creole seeds are considered a local heritage because of their natural biological ability to adapt to different environments. Maintenance of seed vigor has been a challenge for farmers, often because of prolonged droughts and/or lack of technical assistance, making it difficult to renew seed vigor. The objective of this study was to evaluate the morphophysiological characteristics of native seeds of Phaseolus vulgaris genotypes. Seeds were provided by the custodian of the Creole community seed bank in the municipality of Piranhas, AL. The following were evaluated: weight of one thousand seeds (PMS g), water content (TA%), germination index (IG%), germination speed index (IVG), seedling length (CP cm), and seedling dry mass (MSP g). Scott Knott was used at 5% probability, and all analyses followed the Rules for Seed Analysis. For water content, the varieties ranged from 6.9% to 11.78% moisture. For PMS, the genotypes ranged from 351 to 123.5 g. In terms of germination, the bean genotypes presented 29 to 85% and one presented 100% dead seeds. The seeds were stored with the recommended water content, and the Creole genotypes showed great diversity in their sizes, a factor that impacts storage and planting planning. For varieties that presented germination values below 70%, it must be observed whether it is related to a specific factor of a crop and/or the storage conditions and time. Black presented good averages for all morphophysiological characteristics.