The Effect of the Foliar Application of Potassium, Calcium, Boron and Humic Acid on Vegetative Growth, Fruit Set, Leaf Mineral, Yield and Fruit Quality of 'Anna' Apple Trees
Journal Title: Journal of Experimental Agriculture International - Year 2015, Vol 8, Issue 4
Abstract
This experiment was carried out during 2012 and 2013 seasons on seven years old "Anna" apple trees (Malus domestica L.). Trees were planted at 55 meters on sandy loam soil under drip irrigation system in a private orchard at El-Nubaria, Behera Governorate, Egypt. The experiment involved ten foliage spraying treatments as follows: control, sprayed with water, K at 2% as potassium sulphate, Ca at 0.2% as calcium chloride, B at 0.2% as boric acid, H.A. at 5% as humic acid, potassium sulphate+ humic acid, calcium chloride+ humic acid, boric acid+ humic acid, potassium sulphate+ calcium chloride+ boric acid and potassium sulphate+ calcium chloride+ boric acid+ humic acid. The obtained results showed that potassium sulphate+ calcium chloride+ boric acid+ humic acid combination was the best treatment. This combination had the highest positive effect to improve the percentages of yield, fruit set, reducing sugar and total soluble solids. Also, it increased Ca, P, K, N, B, Zn, Mn and Fe in the leaves in the two seasons, as compared to the control. Moreover, this combination improved significantly anthocyanin concentration, TSS/acid ratio, shoot diameter, shoot length, leaf area, fruit diameter, fruit length, average fruit weight and fruit firmness. It decreased the percentages of fruit drop and acidity in the two seasons as compared to the control and the other treatments.
Authors and Affiliations
Walid Fediala Abd El- Gleel Mosa, Nagwa A. Abd EL-Megeed, Lidia Sas Paszt
Keywords
Related Articles
- EP ID EP353868
- DOI 10.9734/AJEA/2015/16716
- Views 82
- Downloads 0
Effects of High Night Temperatures on Cotton Leaf Gas Exchange and ATP Levels at Flowering
Aims: To monitor the effects of high night temperatures on leaf photosynthesis and respiration, stomatal conductance and adenosine triphosphate (ATP) levels of cotton during its reproductive stage. Study Design: A two-fa...
Pepper Seedlings Quality Submitted to Different Substrates and Types of Trays
In the chili crop, substrates are used that provide a high quality of the seedling, which directly reflects the productivity of the plant. To maximize the use of this input is usually used the system of production of see...
Promotion of Turmeric for the Food/Pharmaceutical Industry in Nigeria
This paper seeks to promote turmeric (Curcuma longa Linn) through increased awareness of the potentials of the crop in the food, cosmetic and pharmaceutical industries in Nigeria. Nigeria can take the lead in turmeric pr...
The Impact of Weather Conditions on Response of Sorghum Genotypes to Anthracnose (Colletotrichum sublineola) Infection
Rainfall is a major climatic factor influencing anthracnose development. In this study, 68 sorghum accessions were evaluated for anthracnose resistance under dry and wet growing conditions at the Texas A&M Agricultural...
Leaf Epidermal Anatomy in Five Varieties of Capsicum annuum L. Solanaceae
Leaf epidermal micro morphological features were studied in five verities of Capsicum annum L. both quantitatively and qualitatively to evaluate the reliability of these characters for taxonomic consideration. These vari...