EFFECT OF HUMIC ACID, NUMBER OF CLUSTERS AND CULTIVARS ON GROWTH, FLOWERING AND YIELD OF TOMATO PLANT (Lycopersicon esculantum L.) UNDER PLASTIC HOUSE CONDITIONS

ABDUL JEBBAR IHSAN  SAIED; WADULLA GHANIM HAJI  GULLI

doi:10.26682/cajuod.2020.22.2.1

ABDUL JEBBAR IHSAN SAIED Dept. of Horticulture, College of AgriculturalEngineering Sciences,University of Duhok, Kurdistan Region-Iraq
WADULLA GHANIM HAJI GULLI Dept. of Horticulture, College of AgriculturalEngineering Sciences,University of Duhok, Kurdistan Region-Iraq

DOI: https://doi.org/10.26682/cajuod.2020.22.2.1

Keywords: Humic acid, No of cluster, Cultivars, Tomato plants

Abstract

The study was to investigate the effects of two tomato cultivars, Campeon F1 and Calispo F1,two levels of flower clusters ( 6,9 ) clusters.plant^-1 and foliar spray of Humic acid at concentrations ( 0 , 15 , 30 and 45 ml.L^-1 ) on vegetative growth ,flowers ,yield and yield characteristics of tomato plant grown in plastic house at Duhok governorate, batufa location , guvek village.

Results revealed that humic acid at concentration of 30 ml.L^-1 significantly increased stem diameter, number of flowers/plant 16.535 mm, 90.42 flowers.plant^-1respectively, and 11.19 flowers/clusters at concentration 45 ml.L^-1.

So humic acid at concentration of 30ml.L^-1 significantly affected the number of fruits.Plant^-1, yield per unit area, 82.39 fruits, 23.74 kg/m².

Regarding the effect of level 9 clusters, were obtained the highest value in yield kg.m^-2 , yield kg/plant, No. of flower/ plant) while at level 6 cluster in (no. of flower/ cluster).

In terms of cultivars, Campeon was overcome by calispo cultivar in fruit fresh weight 75.85, compared with Calispo cultivar 73.30gm.

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