IRRIGATION-CULTIVATION INTERACTION ON YIELD AND OTHER PARAMETERS OF SOME CORN HYBRIDS (ZEA MAYS)
Zejnedije ADEMI, Alirami SALIJI, Bardhyl LIMANI, Valmir SALIJI, Nikollaq BARDHI
Abstract
To select the most suitable hybrids for the climatic and soil conditions of the Pollog region during the 2024 vegetative season, a field experiment was established following a randomized block design with five replications.
The experiment investigated several production parameters for various maize hybrids, including: the number of ears per plant, the number of kernels per ear, the number of kernels per plant, ear weight, kernel weight per ear, cob weight, yield, and productivity. The hybrids involved in the experiment were from different producing companies and belonged to different FAO groups: FAO-380 (GW9003), FAO 470 (Pajdash), and FAO 400 (Kashmir).
The results of the analysis of variance showed that the model was statistically significant (F (5,24) = 15.222, p < .001), explaining 76.0% of the variance in yield (R² = .760). The effect of individual factors was as follows: Irrigation had a highly significant impact on yield (F (1,24) = 35.430, p < .001), indicating that the application of irrigation significantly improves productivity. The hybrids also showed statistically significant differences (F (2,24) = 4.048, p = .031), suggesting that genetic differences between hybrids affect yield levels. The interaction between irrigation and hybrid was particularly pronounced and meaningful: (F (2,24) = 16.293, p < .001), indicating that the effect of irrigation is not the same for all varieties benefit more from irrigation than others.
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