Ábrahám Levente (szerk.): Válogatott tanulmányok 13. - Natura Somogyiensis 28. / Miscellanea 13. (Kaposvár, 2016)
Sándor A.–Csikász T-Farkas S.–Rácz T.–Sárospataki M.: Preliminary semi-field study ont he effect of the neonicotinoid containing seed dressings to honeybees as pollinator in sunflower
Sándor et al.: Semi-field study on the effect of the neonicotinoid 37 Table 2: The tent-wise acting of mother and restorer lines to the bee mortality Female 1. Restorer 1. Female 2. Restorer 2. Female 3. I (/genotyp) Tent No. 5. 1866 1866 3638 Tent No. 7. 1772 1772 Tent No. 9. 619 619 1957 Tent No. 11. 1338 1338 Tent No. 13. 880 880 1805 Tent No. 15. 925 925 Tent No. 17. 1924 1924 5012 Tent No. 19. 1808 1808 Tent No. 21. 1280 1280 Tent No. 27. 402 933 Tent No. 29. 531 Tent No. 31. 336 336 Tent No. 33. 442 442 Analysing the interaction between dead bees and sunflower lines we found moderately strong correlation among the number of ripe seeds (~ number of flowers) and the sum of dead bees (tents No. 1-21) (r=0.51**). Our model of regression at this sowing time gave the value R2=0.6 (p=0.11), which is also confirms the previous results (Figure 1). However, no significant effect was observed in the case of tents No. 23-33. (r = -0.75; Fig. 2). The model of regression confirm this (R2 = 0.141; p=0.464). 3000 ■ 2S00 2793 0» 2000 ÜÍ -Ű ■O S 1500 1924 1772 1808 1338 1280 1000 500 925 350000 400000 450000 500000 550000 600000 650000 700000 750000 800000 850000 Number of fertilized flowers on the isolated area (pcs) Fig. 1: The correlation between the number of fertilized flowers and the sum of dead bees in tents No. 1-21 (R2=0.26)
