. Trend Analysis of Climate Change Factors and Yield of Yam in Bayelsa State, Nigeria

Effects of elevated CO2 concentration on growth and photosynthesis of Chinese yam under different temperature regimes

“…Fewer studies have been conducted on the potential effects of climate change on root and tuber crops such as potato (Chen & Setter, 2012;Craigon et al, 2002;Katny et al, 2005) and cassava (Fernandez et al, 2002;Gleadow et al, 2009). In the case of yam, a small number of statistical analyses on the relationship between climatic data and yam yield in Africa (Ike, 2012;Zakari et al, 2014) as well as simulation studies based on models such as CROPSYSTVB-Yam and EPIC-Yam (Marcos et al, 2011;Srivastava & Gaiser, 2010;Srivastava et al, 2012) have been conducted but no experiments related to the effects of elevated [CO 2 ] have been performed in yam (Raymundo et al, 2014), including Chinese yam. Therefore, understanding the responses of Chinese yam to climate change factors such as increasing [CO 2 ] and air temperature is important to determine effective strategies for cultivation in the future.…”

Spatial Distribution of Climate Change Variables (Rainfall and Temperature): A Case Study of Delta State, Nigeria

“…Finally, from 2020 to 2023, the annual mean temperature ranged from 26.7°C -26.8°C. Figure 6 shows the spatial distribution of the temperatures for five selected years (1983, 1993, 2003, 2013, and 2023) This upward trend in temperature could lead to crops being affected by extreme heat, thereby limiting food production in the state (Emaziye et al, 2012). Efe & Eyefia (2015) found evidence of climate change in Delta State, particularly a 3°C rise in temperature and a decadal increase in rainfall of 120 mm, 56 mm, and 121 mm across three epochs (1975-1984, 1985-1994, and 1995-2014).…”