The influence of the temperatures over bean seeds germination

In Romania, bean weevil (Acanthoscelides obtectus – A. o.) represents a great danger in what it concerns bean seeds, the pest presenting a high degree of specialization toward this species.
In 2020, the bean germplasm collection from Vegetable Research and Development Station (V.R.D.S.) Buzău (over 450 accessions) had been heat treated and dried at 60°C for 3 days, having great results in what it concerns pest control (bean weevil). In 2022, there were cultivated 22 accessions – which were protected by the same treatment.
For this study there were selected the seeds of 10 accessions.
The main objective of this study is represented by the evaluation of the time and percentage of emergence for the seeds that have been kept for 3 days at different temperatures (-20, 60 and 80°C). For safety reasons, the control variant was considered the one that used 60°C. Under laboratory conditions, the emergence was ~100% for all the seeds kept at -20°C, and 0% for the seeds kept at 100°C. In what it concerns V₂ and V₄ there was observed an 100% emergence at 60, 80 and -20°C temperatures.

IX South-Eastern Europe Symposium on Vegetables and Potatoes

E. Teodorescu

Acanthoscelides obtectus (Say), bean seeds, Phaseolus vulgaris L., dry thermal treatment, emergence

https://doi.org/10.17660/ActaHortic.2024.1391.73