Salinity affects about 40% of the global area mainly the arid and semi-arid regions. In Kenya the ASALs cover approximately 80% of the total area where agricultural production constraints include water scarcity, salinity and sodicity. Sweetpotato Ipomoea batatas L. (Lam.) is the third most economically important root crop after potato and cassava in the world cultivated for human consumption, animal feed and industrial uses. The production of sweetpotato by smallholder farmers in the ASALs is affected by abiotic stresses including salinity. However, data on levels of salinity stress tolerance among Kenyan sweetpotato genotypes is limited. The objective of the study was to determine physiological response of sweetpotato to salinity stress and assess in vitro regeneration among selected Kenyan sweetpotato genotypes. Fifteen Kenyan selected sweetpotato genotypes Ksp 36, Ksp 20, Ksp28, Kemb 36, Kemb 10, Kemb 23, Kalamb Nyerere, Mweu Mutheki, Enaironi, Mugande, Zambezi, Spk 004, Spk 013, Spk203 and Jewel were used for the present study. In vitro shoot organogenesis using TDZ was used in detrmining regenrability while sudden shock treatment and an incremental stress regime were used for studying the physiological resposes of sweetpotato genotypes to osmotic and salinity stresses. Physiological responses was assessed by measuring the leaf photosynthetic pigment content, vine and leaf length, relative water content and yield. All data collected were analyzed using ANOVA at 95 % confidence interval using SAS statistical software.
Makenzi, N (2021). Screening For Salt Stress Tolerance, In Vitro Regenerability And Relative Growth Among Selected Kenyan Sweetpotato Ipomoea Batatas L. Lam Genotypes. Afribary. Retrieved from https://afribary.com/works/screening-for-salt-stress-tolerance-in-vitro-regenerability-and-relative-growth-among-selected-kenyan-sweetpotato-ipomoea-batatas-l-lam-genotypes-1
Makenzi, Nzaro "Screening For Salt Stress Tolerance, In Vitro Regenerability And Relative Growth Among Selected Kenyan Sweetpotato Ipomoea Batatas L. Lam Genotypes" Afribary. Afribary, 05 Jun. 2021, https://afribary.com/works/screening-for-salt-stress-tolerance-in-vitro-regenerability-and-relative-growth-among-selected-kenyan-sweetpotato-ipomoea-batatas-l-lam-genotypes-1. Accessed 22 Nov. 2024.
Makenzi, Nzaro . "Screening For Salt Stress Tolerance, In Vitro Regenerability And Relative Growth Among Selected Kenyan Sweetpotato Ipomoea Batatas L. Lam Genotypes". Afribary, Afribary, 05 Jun. 2021. Web. 22 Nov. 2024. < https://afribary.com/works/screening-for-salt-stress-tolerance-in-vitro-regenerability-and-relative-growth-among-selected-kenyan-sweetpotato-ipomoea-batatas-l-lam-genotypes-1 >.
Makenzi, Nzaro . "Screening For Salt Stress Tolerance, In Vitro Regenerability And Relative Growth Among Selected Kenyan Sweetpotato Ipomoea Batatas L. Lam Genotypes" Afribary (2021). Accessed November 22, 2024. https://afribary.com/works/screening-for-salt-stress-tolerance-in-vitro-regenerability-and-relative-growth-among-selected-kenyan-sweetpotato-ipomoea-batatas-l-lam-genotypes-1