تأثير التغطيس بال Ga3 و الرش بال Kt-30 في صفات النمو الخضري و الحاصل لثلاثة أصناف من البطاطا Solanum Tuberosum L

الملخص EN

The experiment was conducted in the fields of the College of Agriculture / Tikrit University for the spring season 2019 Within an area with longitude (43.35 degrees east of Greenwich mean) and latitude (34.27 degrees north of the equator), to study the effect of dipping with GA3 and spraying with KT-30 with three levels for each other (0, 5, 10) mg.

L-1 in some characteristics of vegetative growth, yield and productivity of three potato cultivars (Barcelona, Laperla, Montreal).

The experiment was carried out using a split-split plot design within a randomized complete block design (R.C.B.D.) and with three replicates.

The cultivars put in the main plots.

And dipping with gibberellin in Sub- plot and spraying with KT-30 in the Sub-Sub plot, the results showed that dipping with gibberlin caused significant differences in plant length and leaf area, and the values were as follows (35.19 cm and 10263.00 cm2 ), respectively, while spraying with KT-30 was superior in the characteristic of the leaf area, which amounted to (10140.10 cm2 ), and the cultivar Lapirla gave a significant increase.

In the number of aerial stems and leaf area, the values reached (4.60 stem.

Plant-1 and 11366.90 cm2 ) respectively.

As for the characteristics of the outcome, dipping with gibberlin and spraying with KT-30 had no significant differences.

As for the cultivars, the cultivar Laperla surpassed the other two cultivars in yield.

One plant, the number of total tubers and the total yield and the values were (1.18 kg.

Plant-1 and 14.16 stems.

Plant-1 and 46.12 tons.

E 1 ) respectively., as for the bifurcation double and triple between treatments, the increase was significant in plant height, number of stems and leaf area, and for the yield traits also gave significant difference in the yield characteristics, yield of plant, number of tubers and total yield.