In the last decades, the main meteorological parameters, namely the air temperature and the amounts of atmospheric precipitation, have registered significant variations, both from one year to another, and within the same year, from one season to another. In addition to the variable climatic conditions, specific to the Timiş Plain, in the case of the hemp culture, the ecological conditions specific to this culture must also be taken into account. Based on these considerations, the aim of the paper is to carry out a detailed analysis of climatic factors and their impact on the main stages of growth and development of hemp, under the conditions of Timisoara. The analysis of temperatures and atmospheric precipitation was done over a period of six years, respectively 2017 – 2022. Average monthly thermal values and the sum of precipitation amounts were extracted for each year considered. For the period 2017 – 2022, four bioclimatic indices were calculated, based on which the main meteorological parameters with an impact on the hemp culture were characterized. In order to monitor the dynamics of the hemp culture (Mara 21 Variety) during the vegetative cycle, the BBCH scale (proposed by Mishchenko et al., 2017) and the average daily temperatures were used, based on which the sum of the temperature degrees was calculated, for each stage phenological and during the entire vegetation period. In the Mara 21 hemp variety, a vegetative and a generative stage were determined in the 150-day vegetation interval. The sum of the temperature degrees from sowing to harvesting the seeds was 3372.30C. The research results support the idea of variability of climatic conditions, especially of the amounts of atmospheric precipitation in the analyzed territory, which is also reflected on the hemp culture.

monoic hemp, air temperature, atmospheric precipitation, vegetative phenophases

agronomy

Presentation: poster