تأثير تغطية التربة والإضافة الأرضية للمستخلص البحري (Acadian)في نمو وحاصل القرنابيط Brassica oleracea var. botrytis) )

Abstract

This study was carried out at vegetables field of Horticulture and landscape department, College of Agriculture and Forestry, Mosul University, Iraq., during growth season 2013-2014, to investigate the effect of Two factors First: soil mulching which included Two types of plastic (yellow lucid and black plastic) in addition to planting plants in non-mulching soil. Second factor was adding Acadian seaweed extract to soil at (0 , 1 , 2 and 3) gm/l on vegetative growth and yield characters of cauliflower plants cultivar Fujiyama (Hybrid). The experiment involved 12 treatments arranged in a Factorial Experiment in Randomized Complete Block Design (RCBD) with three replicates. The obtained results could be summarized as follows: soil mulching with Two types of plastic leaded to a significant increase in all vegetative growth and yield studied as compared to plants planted in non-mulching soil except plant height character by using black plastic mulching, and there is no significant differences between the Two types treatments of mulching in most vegetative growth and yield, the highest values in all vegetative growth i. e. (plant height, leafs number, plant fresh weight, plant dry weight and leaf area/plant (35.541 cm/plant, 26.875 leaf/plant, 838.330 gm/plant, 104.082 gm/plant and 8195.300 cm2/plant) and yield studied i. e. (plant fresh weight + curds) (gm/plant), plant total yield(plant fresh weight + curds ) (ton/hec), mean weight of curd (marketable and nonmarketable) (gm/curd), total yield of curds (marketable and nonmarketable) (ton/hec) mean weight of marketable curd (gm/plant) and marketable curd yield (ton/hec)rated ( 1390 , 54.364 , 551.670 , 21.576 , 532.330 and 20.820) by follow for each character recorded in soil mulching treatment with yellow lucid plastic. Acadian extract at all concentration showed a positive increases in all characters studied as compared to control plants treatment, the significantly effect was more clearly in all vegetative growth and yield characters by increasing Acadian extract concentration (2 , 3)gm/L as compared (1) gm/l concentration. Most of interactions between cover type and Acadian seaweed extract showed same effects as a single factors .