EFFECT OF GROWTH REGULATOR (GIBBERELLIC ACID GA3) AND ORGANIC FERTILIZER (SHEEP MANURE) ON GROWTH AND PRODUCTION OF WHEAT (Triticum aestivum ).

Abstract

Pots experiment was conducted under normal conditions GA3 used in 4 levels: (0, 25, 50, 100 mg/l) while the organic fertilizer used in 3 levels: (0, 72, 144 gm/pot). Complete Randomized Design was used with three replicates. Results showed the following: 1- Treatment of GA3 (25 mg/l) gave high values in plant height (44.6 cm/plant), leaf area (20.1 cm2 /plant), dry weight (2.2 gm/plant), branch no/plant (4.1), chlorophyll content (4.8 mg/gm), starch in grains (66.4 %), and protein in grains (12.9 %). 2- Treatment of 144 gm/pot organic fertilizer gave the highest value in: dry weight (2.3 gm/plant), branch/plant (4.3), chlorophyll content (5.2 mg/gm), protein in grains (13.1 %). 3- The interaction between treatments of GA3 (25 mg/l) and 144 gm/plant organic fertilizer gave significant values compared with other treatments such are: plant height (46.5 cm), leaf area (21.9 cm2/plant), dry weight (2.6 gm/plant), branch no/plant (5 branch), chlorophyll content (5.8 mg/gm), starch in grains (70.5 %), protein in grains (16 %), grains/spike (32 grain), weight of 1000 grains (28.2 gm) and grains yield/pot (10.8 gm).

Keywords

• triticum saestivum