Untitled - MendelNet 2013 - Mendelova zemědělská a lesnická ...

MENDELNET 2013Table 6. The effect of experiment variants on dynamics of changes in pigment contents in wheatleavesVariantChlorophyll a Chlorophyll b Chlorophyll a+b CarotenoidsDateNo. Designation mg.l -11 0Ti9.368 a 5.857 a 15.225 a 2.246 a2 – 3 Ti 0.2 3. 5. 2012 9.562 a 6.127 a 15.689 a 2.314 a4 – 5 Ti 0.4 9.952 a 6.402 a 16.354 a 2.420 bLSD 0.05 0.8801 0.9333 1.6609 0.0760LSD 0.01 1.3335 1.4141 2.5165 0.11511 0Ti10.414 a 6.593 a 17.007 ab 2.662 b2 – 3 Ti 0.2 21. 5. 10.353 a 7.018 b 17.371 b 2.636 ab4 – 5 Ti 0.4 2012 10.206 a 6.724 a 16.929 a 2.628 aLSD 0.05 0.2447 0.1883 0.4255 0.0325LSD 0.01 0.3707 0.2853 0.6447 0.04931 0Ti8.567 a 4.620 a 13.186 a 2.342 a2 2xTi 0.2 9.158 abc 5.421 ab 14.579 ab 2.358 a3 3xTi 0.2 8.907 ab 5.138 ab 14.045 ab 2.348 a13. 6.4 2xTi 0.4 20129.505 bc 5.877 bc 15.381 bc 2.281 a5 3xTi 0.4 9.643 c 6.640 c 16.283 c 2.210 aLSD 0.05 0.7173 0.9010 1.5698 0.1642LSD 0.01 1.0436 1.3109 2.2840 0.2389Table 7. The effect of changeable sources on quantitative crop parameters of winter wheatSource ofDegrees ofGrainStrawvariabilityfreedomF – calculatedVariant 4 17.235 ++ 4.48 +Repetition 3 2.644 0.457Residue 12Total 19In comparison with a larger amount, the application of a smaller amount of MGT (var. 2 and 3)influenced the crop of grain in a different way. A smaller amount, whether applied two or threetimes, had an insignificant to a slightly negative effect. On contrary, a larger amount (var. 4 and 5)had a conclusively significant and positive effect. Similar influences of experiment variants wereobserved on the growth of straw, although they were statistically inconclusive considering the testvariant (Table 8). The disparities in straw harvest between the variants fertilized by a smaller MGTapplication amount were of a high significance. The totally highest grain and straw harvest wasachieved within variant 4 where the MGT amounting to two times 0.4 l.ha -1 was applied twiceduring the vegetation period of rape. This variant brought forth a grain harvest higher by 12.6 %compared to the test variant. The same results were produced by Kováčik P. and Vician M. (2012)as they stated that the largest grain harvest was achieved in the variant which was MGT-sprayedtwice by a total amount of 0.8 l.ha -1 .Table 8.The effect of MGT fertilizer application on grain and straw crops of winter wheat (2012)Variant Grain Straw Straw/ Grain/No. designation t.ha -1 % t.ha -1 %grain straw1 0 4.33 a 100.00 5.13 ab 100.00 1.185 0.8442 2 x Ti 0.2 4.22 a 97.46 4.94 a 96.30 1.171 0.8543 3 x Ti 0.2 4.22 a 97.46 4.91 a 96.30 1.163 0.8594 2 x Ti 0.4 4.89 b 112.63 5.56 b 108.38 1.144 0.8815 3 x Ti 0.4 4.73 b 109.24 5.55 b 108.19 1.173 0.852LSD 0.05 0.231 0.464LSD 0.01 0.323 0.651The application of MGT had a more beneficial effect on growth of grain in comparison with strawindependently from the amount and number of sprayings. The straw-grain ratio was thus decreased(Table 8). Evaluation of the effect of MGT amount (0.2 and 0.4 l.ha - 1) on grain cropsindependently from the number of applications shows that when intending to enhance the wheatgrain growth it is more suitable to apply a higher amount of MGT rather than a lower one. Thegrain crop achieved in variants 4 and 5 (Table 8 ) fully corresponds with the effect of MGT166 | P age