Abstract:
Two field studies were conducted to evaluate cotton yield and its components which response to
foliar application of Nitrophenolate (Super tonic) at 2017 and 2018 seasons in Sakha- Kafr - El
Shiekh government. Split plot design with three replicates, the main factors were varieties (Giza
94 and Giza 96), sub main plot were four levels of super tonic (0.5, 1, 1.5 and 2.00 cm / liter)
compared with untreated plants. The results obtained that, Giza 94 was superior to Giza 96 in
some studied characters like (no. of flowers, no. of setting bolls/ plant, chlorophyll a, b,
carotenoids, phenols, no. of total open bolls and seed cotton yield per faddan. On the other hand,
Foliar application of super tonic at 1.00 cm/ liter gave the highest number of almost of studied
characters as, no. of flowers/ plant, total phenols, plant height, no. of fruiting branches, no. of
open bolls and seed cotton yield compared with other concentrations. The interactions between
varieties and rates of super tonic were significant in almost studied characters. Therefore, foliar
application of Giza 94 plants with super tonic at 1.00 cm / liter as combination treatments was
highest of most characters that other combinations, at the next foliar application of Giza 96
plants with super tonic at 2.00 cm /liter. |
