Tag Archives: Sweet corn

Effect of Gibberellic Acid (GA3) and Balanced Fertilization ‎‎(NPK) on Some Productive and Quality Characteristics in ‎Sweet Corn (Zea mays var. saccharata) (Merit Hybrid) Under ‎Salt Stress ‎

Mais Daher(1) Majd Darwish*(1) and Sawsan Haifa(2)

(1). Department of Field Crops, Faculty of Agriculture, Tishreen University, Lattakia. Syria.

 (2). Department of Soil and Land Sciences, Faculty of Agriculture, Tishreen University, Lattakia, Syria.

 (*Corresponding author: Dr. Majd Darwish. Lattakia. Syria. E-mail: majds26@yahoo.com).

Received: 12/02/2019                               Accepted: 25/03/2019

Abstract

The experiment was carried out at a greenhouse in the Faculty of Agriculture, Tishreen University, during the agricultural season 2018, by the cultivation of the sweet corn (Zea mays var. Saccharata) grains (Merit hybrid) in plastic pots that were distributed according to randomized complete design with six pots per treatment. The research aimed to study the effect of plant spray with the gibberellic acid (15 and 30 ppm), balanced fertilizer (NPK) (10 g/L), and both gibberellic acid and balanced fertilizer on some growth, productivity and quality characteristics of sweet-corn-hybrid under salt stress conditions (4, 8 and 12) dS/cm. The saline stress, especially at 8 and 12 dS/cm levels, negatively affected the growth of sweet corn plants that led to decrease in fresh ears yield (g/plant) with reduced kernels protein content. The treatment of balanced fertilization NPK did not show any significant effects (P˃0.05) on the growth and productivity of plant; while the spray with gibberellic acid showed positive effects on most of morphological, physiological and productivity (fresh ears yield and its components) and quality (total content (%) of soluble sugar and protein) traits of the plants that were growing under control or salt stress conditions.  It could be recommended to spray gibberellic acid with 15-30 ppm concentrations considering to its observed role in stimulating the growth of Merit hybrid, besides increasing the yield and quality of fresh ears, as well as improving the plants tolerance to saline stress.

Keywords: Sweet corn, Gibberellic acid GA3, Balanced fertilizer (NPK), Salt stress.

Full paper in Arabic: PDF

Genotypic and Phenotypic Correlation and Path Coefficient ‎Analysis for Grain Yield and its Components in Some ‎Sweetcorn (Zea mays L. saccharata) Genotypes

Mohamed Nael Khattab*(1)

(1). Crops Department, Faculty of Agriculture, Tishreen University, Lattakia, Syria.

(*Corresponding author: Dr. Mohamed Nael Khattab. E-Mail: aboalabd876@gmail.com).

Received: 21/05/2019                               Accepted: 06/09/2019

Abstract

A field experiment was conducted at Dmsrkho region, Latakia governorate, Syria, during two seasons 2017 and 2018.  Six genotypes of maize Zea mays L. saccharat were used in this study, i.e: Temptation,Target-A, Sucaria-1 and Sucaria-7- Merritt (USA), and (Faihaa) to study of the  genotypic and phenotypic correlation and path analysis  of yield and its components (number of grains per row, number of rows per ear, 100 kernel weight, ear length, ear circumference), to determine the most common traits of yield and to determine the appropriate selection criteria evidence to improve Sweetcorn. The study showed that the genotypic correlations were higher in most studied traits. The study of genetic correlations were significant and positive in most traits, especially between the fresh yield of the plant with the plant height (rg=0.57**), ear height (rg=0.53**), ear length (rg=0.69**(, ear circumference (rg= 0.83**), number of rows in per ear (rg=0.34**), number of grains per row (rg= 0.72**) and 100 kernel weight )rg=0.66**.( The results showed a high direct effect of the number of grains per row )Genotypic 0.55 and phenotypic 0.53), 100 kernel weight (Genotypic 0.563 and phenotypic 0.451), number of rows per ear  (Genotypic 0.51 and  phenotypic 0.35( and plant height  (Genotypic 0.113 and phenotypic 0.184(, on the individual plant yield because of their strong correlation with it. These traits can therefore be relied as selection criteria to improve grain yield in Sweet corn. The relative importance of the yield variability was (58.67%) because of the fifth aforementioned traits, while the other effects on yield were (41.33%). These five traits are the most important traits that affect the variation in yield in this study

Key words: Sweet corn, Genotypic correlation, phenotypic correlation, genotypic path coefficient, phenotypic path coefficient.

Full paper in Arabic: PDF

The Effect of Planting Date on the Productivity Traits of Some Sweet Corn (Zea mays L. saccharata. sturt) Varieties

Loubna Nasr Haidar*(1)

(1). Department of Field Crops, Faculty of Agriculture, University of Aleppo, Aleppo, Syria.

(*Corresponding author: Dr. Loubna Nasr Haidar. E-Mail: lubnanaser82@gmail.com).

Received: 01/01/2018                                Accepted: 20/07/2018

Abstract

The present research is carried out at the Farms of Agricultural Secondary School in AL Salamieh city, Hama Governorate, Syria, during the season 2015 to evaluate the productivity of three sweet corn varieties; one was local variety, Faihaa1; and two Ukrainian varieties; Randevo F1 and Snekofa Karaliva F1 under the effect of different planting dates (1st and 15th April) in order to determine the best variety and the most suitable planting date in spring season. The results showed that the grain yield and yield components of Faihaa1 variety were higher than that of Randevo and Snekofa Karaliva in the first planting date (1st April). The increase of grain yield recorded were (3.38-2.86-ton/ha), and fresh ears yield with husks recorded were (1.88-0.58-ton/ha) respectively. Also, the results showed that there was significant increase in number of ears per plant, number of grains per ear and ear grain weight of Faihaa 1 variety compared to Randevo F1 and Snekofa Karaliva F1. And grain yield and yield components of Faihaa 1 were higher than Randevo F1 and Snekofa Karaliva F1. The highest grain yield was at the beginning of April for all varieties, and the fresh grain yield recorded was (9.01) ton/ha. The fresh grain yield and other productivity characters decreased on mid-April for all varieties. The results showed that there was significant increase in the productivity characters in Faihaa 1when it was planted at the beginning of April.

Key words: Sweet corn, Varieties, Planting dates. Productivity traits.

Full Paper in Arabic: PDF

The Effect of Planting Date on the Morphological Traits of Some Sweet Corn Genotypes (Zea mays L. saccharata. sturt)

Loubna Nasr  Haidar*(1)

(1). Department of Field Crops, Faculty of Agriculture, University of Aleppo, Aleppo, Syria.

(*Corresponding author: Dr. Lounna Nasr Haidar. E-Mail: lubnanaser82@gmail.com).

Received: 01/02/2018                                Accepted: 02/03/2018

Abstract

The present research carried out at AL Salamieh city, Hama Governorate, during the season 2015, aiming to evaluate the morphological traits of three genotypes of sweet corn i.e Faihaa1, Randevo and Snekofa Karaliva under the effect of different sowing dates; 1st and 15th April, in order to determine the best variety and the most suitable sowing date in spring season. The results showed that the morphological traits of Faihaa1 genotype was higher than those of Randevo and Snekofa Karaliva in the first sowing date (1st April), and the increase of ear length recorded (1.78-1.48 cm), and height of plant recorded in Faihaa1 and Randevo and Snekofa Karaliva were (130.95, 71.11 and 68.33 cm) respectively. Also, the results showed that there was a significant increase in kernel diameter, leaf area, and stem diameter in Faihaa1, comparing to Randevo and Snekofa Karaliva, while the highest ear length and kernel diameter were at the beginning of April for all genotypes.

Key words: Sweet corn, Genotypes, Sowing dates.

Full Paper in Arabic: PDF