Interaction of transplant spacing and the rate of nitrogen fertilizer on some agronomics traits and grain yield of the four promising lines of rice | ||
| تحقیقات آب و خاک ایران | ||
| Volume 54, Issue 1, April 2023, Pages 193-204 PDF (1.26 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.22059/ijswr.2023.348878.669366 | ||
| Authors | ||
| raham Mohtashami* 1; Mohammadrza Chakeralhosaini2 | ||
| 1Instructor of Seed and Plant Improvement Department, Research and Education Center of Agricultural and Natural Resources of Kohgiluyeh and Boyerahmad, Agricultural Research Education and Extension Organization(AREEO), Yasooj, Iran | ||
| 2Assistant of Soil and Water Department, Research and Education Center of Agricultural and Natural Resources of Kohgiluyeh and Boyerahmad, | ||
| Abstract | ||
| This research was carried out with the aim of achieving the most suitable planting distance and the amount of nitrogen fertilizer per unit area on four promising rice lines 10, 11, 15, and 16 at Kohgiluyeh and Boyerahmad province, Choram city station in 2016 and 2017. The factor of planting distance in three levels of 15x15, 20x20, and 25x25 cm, and the amount of nitrogen in three levels of 50, 100, and 150 kg of N per hectare were factorially considered in the form of a randomized complete block design with three replications. Traits were containing plant height, days to flowering, days to maturity, harvest index, grain yield, and yield components. The result of the analysis showed there is a significant differences between genotypes at a 1% probability level. ANOVA revealed significant differences for different transplant spacing and different rates of nitrogen fertilizer on comparison of grain yield and thousands grain yield. Effects of transplant spacing, and rate of N level so interaction between N level and on grain yield showed significance at 5% probability level. The effect of genotype and transplant spacing were non-significant on days to flowering, days to maturity, while the effect rate of N level significant on other traits at the 5% probability level. The number of seeds per square meter and the number of fertile tillers were the effective components on the difference in grain yield. In whole genotypes had significant difference at most case second transplant spacing with other transplant spacinges. The maximum grain yield was related to genotype No 3 in G3 ×D2× N2 with average of 9.503 Ton ha-1. Therefore, this treatment can be used taking into account economic and environmental considerations. | ||
| Keywords | ||
| Interaction; Nitrogen Fertilizer; Rice Line; Transplant Spacing | ||
| References | ||
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