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Response of Groundnut (Arachis hypogaea L.) Genotypes to Combined Application of Phosphorus and Foliar Zinc Fertilizers in Central Tigray, Ethiopia

Article scientifique 2020 Anglais

Résumé

Abstract Background: Adequate phosphorus (P) and foliar zinc (Zn) in groundnut required for obtaining Zn-enriched grain and optimum yield. However, it was very low in the area. Due to that, the study investigated the response of groundnut genotypes to combined application of phosphorus and zinc on yield and nutritional content. Methods: A field experiment was conducted at Sheka-Tekli in 2017/18 cropping season. The treatments were consisted of three groundnut genotypes (ICGV00308, ICGV91114 and Sedi) as main plot and four combined (P with Zn) fertilizer levels (00(F 0 ), 10 kg P/ha +0.50 g Zn/L(F 1 ), 20 kg P/ha +1 g Zn/L(F 2 ) and 30 kg P/ha+1.5 g Zn/L(F 3 ) as sub plot was assigned in split plot design. Result: The genotype and combined fertilizer main effect had significance effect on days to 50% flowering and days to 50% maturity. They had also a significant effect on hundred seed weight and leaf length, respectively. Number of pods/plant, pod yield/ha, number of seeds/pod, seed yield kg/ha, shelling percentage, percentage of crude protein and fat content had significantly affected by interaction component. Most of the yield component traits showed a strong positive correlation with seed yield . The highest seed yield (2,529 kg/ha) and protein content (37.79%) was obtained from Sedi with F 3 fertilizer. While the lowest yield was recorded from ICGV00308genotype without fertilizer. The highest fat content (43.95%) had gained from the genotype ICGV00308 with F 3 . A significant MRR (380.58%) was obtained from genotype ICGV00308 with F 1 . In addition, ICGV00308 & sedi with F 3 is the greatest interaction for extract high fat and protein content, respectively. Conclusions: From the result of the study, application of PZn fertilizer increases yield of groundnut. Therefore, based on the MRR result genotype ICGV00308 with F 1 was the best combination to produce groundnut per unit investment in the study area.

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Berhe, H., Abera, D., Yemane, Y. (2020). Response of Groundnut (Arachis hypogaea L.) Genotypes to Combined Application of Phosphorus and Foliar Zinc Fertilizers in Central Tigray, Ethiopia. https://doi.org/10.21203/rs.3.rs-26091/v1

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Hintsa Meresa Berhe Dereje Assefa Abera Yemane Tsehaye Yemane

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