Shabaq m Nafea Al-Hawezy؛ Chnar A Ibrahim
پوخته
Study was conducted using Thompson seedless grapevines 11 years old, trained asarbors (espalier) training in a vineyard at Erbil Directorate of Agriculture Researches /Kurdistan Region ...
زیاتر بخوێنەوە
Study was conducted using Thompson seedless grapevines 11 years old, trained asarbors (espalier) training in a vineyard at Erbil Directorate of Agriculture Researches /Kurdistan Region / Iraq during the growing season of 2015 to investigate the possibleeffects of foliar application of natural bread yeast (bio-fertilizer) and liquid organicfertilizer (B&S Pot-min) on yield quantity and quality. Results indicated that theconcentration of 12 g.l-1 of bread yeast, liquid organic fertilizer at 4 ml.l-1 andinteraction between them affected on yield and physical characteristics of clusters,berries and chemical properties of berries significantly over other concentrations andinteractions. The number of clusters/vine, cluster weight, yield increased by applicationof bread yeast, and there were significant differences between treatments comparing tocontrol. Applications of bread yeast and organic fertilizer significantly improve physicalcharacteristics of berries comparing to control. Bread yeast application causedsignificant increase in total soluble solid (TSS), decreased titratable acidity (TA), withhighest value of TSS/TA ratio compared with control.