Research article

RESPONSE OF DATE PALM CULTIVAR AL-HALAWI TO NANO- AND BIO-FERTILIZATION AND FRUIT THINNING AND THEIR EFFECT ON SOME FRUIT TRAITS AND YIELD QUANTITY

Imad Ali Obaid and Mohammad Noor Al Helali

Online First: March 24, 2023


The experiment was carried out in one of the private orchards in Al-Saniya district, Al-Diwaniyah city, during the growing season (2020) on palm trees phoenix dactylifera L cultivar Al-Halawi to study the effect of spraying with nano-fertilizer (NPK) neutral (20: 20: 20) at concentrations (N1 =0. N2=1. N3=2 ) g. L-1 and mycorrhizal fungus at a rate of ( B1=0, B2=75) g. tree-1, and thinning ( T2=8 and T1= 12 )bunches .Tree-1) and the interaction between the three treatments in some characteristics of the fruit and yield For Al- Halawi palm variety, it was implemented as a factorial experiment and was designed according to the design of randomized complete sectors (RCBD) with three factors distributed randomly in three sectors, and the study showed a significant effect for each of the spraying with nano-fertilizer and the mycorrhizal fungus, each separately. There was an increase in the fruit weight, size, seed weight,bunch weight and the increase in the amount of yield, The treatment of the thinning showed a significant effect on the physical characteristics of the fruits, as increasing the weight and size of the fruits, the weight of the seed and the weight of the bunches increased, and the quantity of the total yield was not affected Also, the bi-interactions (T*B), (N*T), (N*B) and the triple interactions (N*B*T) showed a significant effect in most of the studied traits, as they took the same course as the effect of the treatments of nanofertilizer and mycorrhizae with high interaction effect values.

Keywords

date palm, fruit thinning, yield quantity