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Abstract                 Volume:9  Issue-10  Year-2021          Original Research Articles

Online ISSN : 2347 - 3215
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcret@gmail.com

Effect of Seed Rate and Row Spacing on Yield and Yield Components of Rain Fed Upland Rice (Oryza sativa L.) Variety in Pawe Northwestern Ethiopia
Zewdineh Melkie*
Ethiopian Institute of Agricultural Research (EIAR), Pawe Agricultural Research Center (PARC); P.O.X. 25 Pawe, Ethiopia
*Corresponding author

An experiment was conducted at Pawe during the rainy seasons of 2018 and 2019 cropping season. The objectives of the experiment was to determine the effect of row spacing (RS) and seed rate (SR) on yield and yield components of upland rice, and to determine economically feasible seed rate and row spacing for upland rice producing farmers in Pawe areas. Factorial combination of Four row spacing (15, 20, 25 and 30 cm) and seven level of seed rates (40, 60, 80, 100, 120,140 and 160 kg ha-1) were laid in RCB design with three replications. All collected data’s’ were subjected to analysis of variance using SAS software. The economic analysis was done consider the grain and straw yield. The analysis of variance showed that, the biomass yield, grain yield and straw yield ha-1 were significantly (P<0.05) and total tillers per 0.5m row length was highly significantly (P<0.01) affected by Row spacing. Main effect of seed rate also highly significantly (P<0.01) affected the plant height, total tillers per 0.5m row length, fertile grains per panicle, above ground biomass yield ha-1, grain yield ha-1and straw yield ha-1, and significantly (P<0.05) affected un-effective grain per panicle. Interaction effect of RS and SR was significant in harvesting index, but others agronomic parameters were not significant different. The highest grain yield (3695.35 kg ha-1) was obtained from seed rate of 80 kg ha-1. The economic analysis indicated that 80 kg ha-1SR is most profitable with NB (42892.8Birr ha-1). Depend on row spacing, 20 cm was higher NB, but not more significant compared to 30 cm and not easily applicable for users. Therefore, 30cm row spacing with 80 kg ha-1 seed rate is acceptable and recommended for upland rice production system in Pawe areas and similar agro ecologies.

Keywords: Net benefit, Row spacing, Seed rate, Yield, Upland rice.
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How to cite this article:

Zewdineh Melkie. 2021. Effect of Seed Rate and Row Spacing on Yield and Yield Components of Rain Fed Upland Rice (Oryza sativa L.) Variety in Pawe Northwestern Ethiopia.Int.J.Curr.Res.Aca.Rev. 9(10): 67-75
doi: https://doi.org/10.20546/ijcrar.2021.910.010