No abstract

Our study aimed to underline the morphological characters of 25 soybean varieties of both Romanian and foreign origin in the ecopedological background of SCDA Turda in the presence of a nitrogen-fixing bacteria indigenous to the soil. Activities undertaken to reach this goal encompassed carrying out biometrical determinations of the plants (root length, plant height and number of leaves) and registering the number of nodules for each separate variety. Analyzing the data regarding the afore-mentioned parameters revealed significant morphological differences between the varieties, all of which were statistically relevant.

Soil respiration is an important indicator of soil biological activity. Respiration rate can be in luenced by soil temparature, moisture conditions, plant root densities and activities, soil organism population levels, soil physical and chemical properties, etc. The results obtained by measuring soil respiration evaporation on 10 soybean varieties in lowering phenophase shows signi icant differences for 8 of the 10 species considered in the study.