IMPROVEMENT OF FIG GROWTH AND PRODUCTIVITY AT SIWA OASIS

This study was conducted during the two successive seasons of
2016and 2017 at khamisa research station farm of Desert Research
Center, under Siwa Oasis – Matrouh Governorate – Egypt on Conadria
fig cultivar grown under salinity stress to study the effect of some
biological compounds (biomagic, yeast and biovite) on improving
productivity. Four treatments of foliar applications :(T1): tap water,
biomagic at 7.5% (T2), yeast extracts at 5g/l (T3), and biomgic7.5% +
yeast extracts 5g/l (T4) sprayed once every two month starting from
January until the harvest time. In addition, soil inoculated twice at
(January and March) in the rizosphere area with irrigation water by three
treatments (control 0 (B1), 100 ml/tree (B2) and 200 ml/tree (B3) of
biovite suspension 1%. The obtained results revealed that all treatments
were very effective on growth parameters, yield (fruits number and
weights) for etch of ―boni-crop‖, ―main-crop‖ and final crop in addition
to fruit physical and chemical characteristics. Generally, T4 under B3
increased shoot length, leaves number /shoot, leaf area, leaf total
chlorophyll, number of fruits (boni-crop), number of fruits (main-crop),
total number of fruits, weight of fruits (boni-crop), weight of fruits (main-
crop), total yield, fruit weight, fruit height, fruit diameter, total soluble
solid, reducing sugars, non- reducing sugars, total sugars and decreased
total acidity in both seasons. It is also clear that B3 increased total
microbial account with plant growth reaching their highest figures after
90 days from inoculation. In addition, B3 decreased EC, pH, Na, and Cl in
soil at the end of each seasons.