تأثير الرش بتراكيز مختلفة من خليط البورون و الحديد و مسافات الزراعة في النمو الخضري و الحاصل و مكوناته للطماطة (Lycopersicon escolentum Mill.)‎ في الظروف المحمية

Abstract EN

An experiment was conducted in one of the plastic houses at Botany Dept.

,Kufa Technical Institute during the growing season of 2014 / 2015 , to study the effect of different concentrations of Boron - Iron mixture , planting distance and their interactions on vegetative growth , yield and its components of tomato plant (Lycopersicon escolentum Mill.).

The experiment included 9 interaction treatments came from three concentrations of Boron and Iron (0,15 and 30 mg \ L) and three planting spacings (20 , 30 and 40cm).

Results showed the highest value of vegetative growth obtained from mixture spray (Boron and Iron) at concentration of 15 mg \ L for all the studied parameters,(plant height , branches number / plant , leaves number / plant, plant leaf area and plant dry weight which 118.19 cm , 13.18 , 148.53 , 71.80 cm2 and 70.60 g , respectively.

Also distance of 40 cm gave the highest indicators 113.15 cm, 12.39, 142.63, 64.40 cm2 and 68.80 g , respectively.

Interaction at (15 mg \ l and 40 cm) gave the results of 120.33 cm, 15.77, 159.50, 80.70 cm2 and 78.10 g for plant height , branches number / plant , leaves number / plant, plant leaf area and plant dry weight , respectively.

Results showed also that the high values in the yield and it's components were with the concentration 15 mg \ L of Boron and Iron that gave the highest values for number of fruits / plant , weight of fruit , plant yield , total yield and T.S.S.

which were 61.23 , 173.55 g , 10.65 kg , 13.17 ton/d , 7.65 % , respectively.

Plant spacing (40 cm) gave high values for fruit number / plant, plant yield , total yield and T.S.S.

which were 46.95 , 7.42 kg , 10.62 ton/d , 6.44 % , respectively.

But fruit weight was higher at 30 cm which was 155.73 g.

The highest yield values came from the interaction between 15 mg \ L and 40 cm gave 67.24 ,179.91 g , 12.10 km , 14.92 ton/d and 8.32 % for fruit number / plant , fruit weight , plant yield, total yield and T.S.S.

, respectively.