Analysis of the parameters of economically valuable traits of camelina sativa for the conditions of the Right-Bank Forest-Steppe of Ukraine under the conditions of climate change

Abstract

In the article, on the basis of regression analysis of the data, a forecast of the most important elements of the structure of productivity for the maximum specified yield of camelina sativa in the conditions of the Right-Bank Forest-Steppe of Ukraine in conditions of climate change is made. According to the assessment of the correlation relationships between the economically valuable breeding traits of camelina sativa, the studied indicators differ among themselves in terms of the level of interaction. The indicators of seed collection from one plant (r=0.98), the number of pods per plant (r=0.84) and plant safety (r=0.71) have a significant influence on the formation of productivity. The average correlation effect on productivity is the number of seeds per pod (r=0.44), the number of branches per plant (r=0.60), plant height (r=0.37) and the duration of the growing season (r=0.38). The mass of seeds per plant strongly depended on the number of pods per plant (r=0.85), but had an average positive correlation with the number of seeds per pod (r=0.48), the number of branches per plant (r=0.59), plant height (r=0.37), plant safety (r=0.62) and duration of the growing season (r=0.37). There is a weak negative relationship between the number of seeds in a pod and plant height (r=-0.29) and the duration of the growing season (r=-0.18), between the mass of a thousand seeds and the number of pods per plant (r=-0.08). Regression analysis of the entire array of experimental data made it possible to predict the value of the most important elements of the productivity structure for the maximum specified yield. For a maximum yield of 3.0–3.5 t/ha, the weight of seeds per plant should be 2.1–2.4 g, while the plant should form 13.4–15.9 branches, 159.5–182.1 pods and 16.8–19.5 seeds per pod. The mass of a thousand seeds should have 2.34–2.95 g, plant height 90.7–105.8 cm and plant safety at the level of 98.9 %, and the duration of the growing season should be in the range from 103 to 110 days.