Assessing diversity in canopy architecture, photosynthesis, and water‐use efficiency in a cowpea magic population

Abstract

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Improving the Photosynthetic Efficiency and Productivity of Cowpea in Sub Saharan Africa: A Review

“…The increase in yield is greatest when the Sun is directly overhead but as the Sun angle decreases, this benefit gradually diminishes. Kumagai et al [46] and studies by other authors Gitelson et al [47] investigated whether a drop in chlorophyll content would result in an increase in canopy photosynthesis in soybeans using several canopy photosynthesises models [92,95]. Correlation between leaf Chlorophyll content, leaf optical characteristics, and biochemical capacity in several soybean accessions, as well as a wild type and a Chlorophyll content -deficient mutant, using a variety of criteria was tested.…”

“…The key limiting factor for canopy photosynthesis is lower canopies leaf area, according to Digrado et al (2022); while, the major limiting factor in greater biomass canopies was the light environment. According to Digrado et al [95]; canopy architecture has a considerable impact on canopy photosynthetic efficiency and water consumption efficiency, implying that enhancing canopy structures can help increase agricultural yields.…”

“…1977). This physiological process can be viewed as a necessary evil because the cyclic mechanism (also known as the C2 cycle) is capable of recovering 75% of the carbon lost during RuBP oxidation [95]. It also plays a role in N-metabolism and keeps levels of the hazardous metabolite 2-phosphoglycolate generated by the RuBisCO oxygenation reaction to a minimum.…”

Nitrogen/potassium interactions increase rice yield by improving canopy performance

“…However, little is known about whether and how the interaction effects of N and K influence canopy light and N distributions. The canopy is an important factor affecting crop yield because it is the primary location where photosynthesis occurs (Digrado et al, 2020). The canopy characteristics, i.e., the leaf angle, leaf curvature, leaf area index (LAI), leaf N content per unit leaf area, and the light and N distributions affect the canopy photosynthetic capability (Gu, Chen, et al, 2017; Huang et al, 2019; Song et al, 2013).…”

Cowpea leaf width correlates with above ground biomass across diverse environments

“…The total AGB was obtained from the sum of total leaf mass and total stem mass. Data describing this population were analysed in a previous publication(Digrado et al, 2020) and were reanalysed in the present study to test the specific hypothesis that the correlation between leaf dimension traits and AGB would be maintained in different cowpea genotypes across different environments.2.3 | Statistical analysisCorrelation analyses were performed in R version 4.1.2 (R CoreTeam, 2016) and RStudio version 2021.09.1(RStudio Team, 2015) on the individual and combined datasets. Pearson correlation coefficients for the combined dataset were calculated after data from the greenhouse, and field experiments were centred and scaled separately prior to merging.…”