The Effect of Soil Mulching and Fluoroton Spraying on the Productivity of Two Zucchini Squash hybrids (Cucurbita pepo L.) under Greenhouse Conditions

Abstract The experiment was carried out in one of the greenhouses affiliated to Department Horticulture and Landscape Engineering - College Agriculture University Karbala for spring season 2022. study included effect three factors, first factor at four levels, which are mulching soil As follows (without M0, transparent plastic cover M1, black M2 geotextile M3) second spraying with a fluorotone compound two concentrations (0 gm L -1 S0 0.5 S1), Spraying done during true leaf stage flowering third is hybrids zucchini squash hybrids, namely (variety CHAMSA F1 V1 cultivar YOULAND V2), thus total number treatments became sixteen factorial experiment, 3 replications each treatment, experimental units forty-eight units, Each unit contains eight plants, randomized complete block design (RCBD) used results were analyzed using statistical program Gens Stat averages compared according least significant difference (LSD) test level probability 0.05. showed that variety superior V2 most studied productive traits, represented fruits, yield plant, yield, except early plant as variety. fluoroton spray treatment S1 excelled all characteristics control S0. covers, recorded highest production characteristics, followed by significantly comparison covering) M3.