Effect of Salicylic acid and irrigation intervals on yield components of five genotypes of maize (Zea mays L.)

2nd International Scientific Conference (Pure Sciences, Brilliant Creativity and Renewed Building)

Al-Sheikh, Warqa M.S.^1 ; Alwan, Abdoun H.^2 ; Al-Jubouri, Abduljassim M.^3

College of Dentistry, Al-Qadisiyah Universirty, Iraq^1

College of Science, Kerbala Universirty, Iraq^2

Biotechnology Research Centre, Nahrain Universirty, Iraq^3

关键词: Factorial experiment;    Growing season;    Irrigation interval;    Irrigation period;    Maize (Zea mays L.);    Maize cultivars;    Probability levels;    Yield components;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/571/1/012049/pdf
DOI  :  10.1088/1757-899X/571/1/012049

来源: IOP

【 摘 要 】

This study was carried out during spring and fall growing seasons of 2013 in Alfayadah district-Alhindiya Kerbala governorate to study the effect of different concentration of SA, two periods of irrigation as well as their interaction on the yield and its componants of maize plants. Maize cultivars were Almaha, Buhooth, Fajer, Baghdad and Local. Factorial experiment within randomized complete block design ( R.C.B.D) was adopted (5∗2∗5) for SA, irrigation period and cultivars respectively with three replicates. Means were compared using LSD at 0.05 probability level. The 1st addition of SA was at 4-5 true leaves stage and the 2nd addition was one month after the 1st one (50%of male flowering ), Results revealed that SA resulted in a significant increase in dry weight of yield (g) at the concentrations of 200 and 150 mg/L SA 68.00% & 32.10% for both seasons respectively. Higher weight of 100 seeds 5.72% was found at 150 mg/L SA during the fall season. The biological yield was also increased by 10.63% & 15.83% at a concentration of 200 mg/L SA for both seasons respectively. Increasing the intervals of irrigation from 7 to 14 days caused a reduction in dry weight of yield by 21.27% and 15.37% and weight of 100 seeds by 9.62% & 5.84% respectively, as well as reducing the biological yield by 10.55 & %17.32% for both seasons respectively. Maize cultivars showed fluctuations in most studied parameters between spring and fall seasons. The interaction between SA & water interval showed a significant increase of most studied parameters concerning, yield and its components.The interaction between SA and cultivars significantily affected the above mentioned parameters.The interaction between the three factors had a significant effect on the studied traits.