Genetic Indicators of Barley cultivars by the Effect of Seeding Rate | ||
| IRAQI JOURNAL OF DESERT STUDIES | ||
| Articles in Press, Accepted Manuscript, Available Online from 28 February 2023 | ||
| Document Type: Research Paper | ||
| DOI: 10.36531/ijds.2023.136150.1010 | ||
| Author | ||
| Aqeel Fadel* | ||
| کلیة الزراعة /جامعة الانبار | ||
| Abstract | ||
| A field experiment was carried out during the winter season 2021-2022 in research station 1 - College of Agriculture to knowing the genetic variations between different varieties of barley by the effect of seeding rate to find selective evidence for improving barley yield. Split plots arrangement according to randomized complete block design (RCBD) at three replications was used. The main plots included of three seeding rates (120, 160 and 200) Kgha-1, while the sub plots included five barley cultivars (Iba 256, Iksad 617, Amal, Samir and Buraq). The results showed that the low seeding rate (120 Kg ha-1) was significantly superior in the flag leaf area (14.45 cm2), while the high seeding rate (200 Kg ha-1) was significantly superior in the crop growth rate, weight of 1000 grains, grain yield and biological yield (13.76 g m-2 day-1, 48.21 g,5.78 ton ha-1and 20.48ton ha-1) respectively, whereas the seeding rate of 160 Kg ha-1was significantly superior inthe harvest index (28.87%).The yield and its components of barley were studied in terms of performance and variances, and the values of genetic and environmental variances, genetic and phenotypic variance coefficients and heritability broad sense rates were calculated. The highest percentages of genetic to environmental variations were 67 times for the weight of 1000 grains. The highest heritability rates were 99.28% and 98.54% for the biological yield and the weight of 1000 grains respectively. | ||
| Keywords | ||
| barley; yield components; PCV; GCV%; heritability | ||
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