Agronomic biofortification of cowpea with zinc: Variation in primary metabolism responses and grain nutritional quality among 29 diverse genotypes

Silva, Vinícius Martins; Nardeli, Ana Júlia; Mendes, Nandhara Angélica Carvalho; Rocha, M. de M.; Wilson, Lolita; Young, Scott D.; Broadley, Martin R.; White, Philip J.; Reis, André Rodrigues dos

doi:10.1016/j.plaphy.2021.02.020

Cited by 33 publications

(30 citation statements)

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“…Globally, 12.5 million hectares of land are cultivated under cowpea production to yield seven million tons of grain produced per annum (FAOSTAT, 2020). Cowpea is cultivated for its fresh leaves, green pods and grain which are rich sources of macro and micro-nutrients (i.e, carbohydrate, protein, vitamins and minerals) (Gonçalves et al, 2016;Carvalho et al, 2019;Bai et al, 2020;ElMasry et al, 2021;Silva et al, 2021). These renders cowpea a key crop for food, nutrition and health security.…”

Section: Introductionmentioning

confidence: 99%

Phenotypic description of elite cowpea (Vigna ungiculata L. Walp) genotypes grown in drought-prone environments using agronomic traits

Gerrano

Thungo

Mavengahama

2022

Heliyon

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Identification and selection of cowpea genotypes possessing suitable agronomic attributes is key for cultivar development to increase production. The objective of this study was to evaluate cowpea genotypes using agronomic traits to aid selection and identification of best genotypes for adoption and breeding to develop highyielding cultivars. Agronomic traits of 20 cowpea genotypes were evaluated under Tompi Seleka and Polokwane environments using a completely randomised block design. Significant (P 0.01) genotype effect was identified for agronomic traits, whereas environment effect was significant (P 0.05) for number of productive branches (NB), leaf width (LW), leaf length (LL), hundred-seed weight (HSW) and grain yield (GY). Significant genotype-by-environment interaction effect was observed for pod length (PL), pod width (PW) and number of seeds per pod (SPP). Correlation analysis revealed positive and significant associations between NB with LW (r ¼ 0.58; P 0.01), LL (r ¼ 0.67; P 0.01), number of pods per plant (PPP) (r ¼ 0.56; P 0.01) and HSW (r ¼ 0.47; P 0.05). LW was positively and significantly correlated with LL (r ¼ 0.71; P 0.00), PPP (r ¼ 0.56; P 0.01) and SPP (r ¼ 0.58; P 0.01). Positive and significant correlation was observed between LL with chlorophyll content index (CCI) (r ¼ 0.54; P 0.05), PPP (r ¼ 0.68; P 0.01) and pod length (PL) (r ¼ 0.52; P 0.05). PW was positively and significantly associated with PL (r ¼ 0.68; P 0.01) and SPP (r ¼ 0.61; P 0.01), whereas PL was positively associated with SPP (r ¼ 0.82; P 0.01). Cowpea genotypes CH14, Embo buff, IT89D-349, IT96D-602, Veg cowpea 1, Veg cowpea 2, Veg cowpea 3 and Veg cowpea dakama red recorded high NB, plant height (PH), LL, LW, chlorophyll content index (CCI), number of pods per plant (PPP), HSW and GY. Also, genotypes 2460, IT96D-748, Oukawa, Ukaluleni, Veg cowpea dakama cream and Vigna Onb were associated with PL, SPP and PW. The identified genotypes possessing suitable agronomic traits are recommended for farmer-adoption and inclusion in breeding programs for cultivar development.

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Section: Introductionmentioning

confidence: 99%

Phenotypic description of elite cowpea (Vigna ungiculata L. Walp) genotypes grown in drought-prone environments using agronomic traits

Gerrano

Thungo

Mavengahama

2022

Heliyon

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“…The seed priming with Mo increased the grain yield and net return in chickpea [ 22 ]. However, many studies have reported the sole application of biofertilizers in cowpea [ 23 , 24 ] but a comparative analysis of the effect of foliar application, seed priming and soil treatment using Mo, Zn and Fe along with their interactive effects on cowpea has not been explored so far. This interactive effect could be better explored in terms of micronutrient accumulation in grain and stover along with the improvement in crop quality which could benefit human health by combating hidden hunger.…”

Section: Introductionmentioning

confidence: 99%

Interactive Effects of Molybdenum, Zinc and Iron on the Grain Yield, Quality, and Nodulation of Cowpea (Vignaunguiculata (L.) Walp.) in North-Western India

et al. 2022

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Micronutrient deficiency is a major constraint for the growth, yield and nutritional quality of cowpea which results in nutritional disorders in humans. Micronutrients including molybdenum (Mo), iron (Fe) and zinc (Zn) play a pivotal role in crop nutrition, and their role in different metabolic processes in crops has been highlighted. In order to increase the nutritional quality of cowpea, a field experiment was conducted for two years in which the effect of Mo along with iron (Fe) and zinc (Zn) on productivity, nitrogen and micronutrient uptake, root length and the number of nodules in cowpea cultivation was investigated. It was found that the foliar application of Fe and Zn and their interaction with Mo application through seed priming as well as soil application displayed increased yield, nutrient concentration, uptake and growth parameters which helped to enhance the nutritional quality of cowpea for consumption by the human population. The results of the above experiments revealed that among all the treatments, the soil application of Mo combined with the foliar application of 0.5% each of FeSO4.7H2O and ZnSO4.7H2O (M2F3 treatment) enhanced the grain and stover yield of cowpea, exhibiting maximum values of 1402 and 6104.7 kg ha−1, respectively. Again, the M2F3 treatment resulted in higher Zn, Fe and Mo concentrations in the grain (17.07, 109.3 and 30.26 mg kg−1, respectively) and stover (17.99, 132.7 and 31.22 mg kg−1, respectively) of cowpea. Uptake of Zn, Fe and Mo by the grain (25.23, 153.3 and 42.46 g ha-1, respectively) as well as the stover (104.2, 809.9 and 190.6 g ha−1, respectively) was found to be maximum for the M2F3 treatment. The root length (30.5 cm), number of nodules per plant (73.0) and N uptake in grain and stover (55.39 and 46.15 kg ha−1) were also higher for this treatment. Overall, soil application of Mo along with the foliar application of FeSO4.7H2O (0.5%) and ZnSO4.7H2O (0.5%) significantly improved yield outcomes, concentration, uptake, root length, nodules plant−1 and N uptake of cowpea to alleviate the micronutrient deficiency.

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“…Experiments have achieved 25-fold Se and 190-fold Zn increases in soybean seeds (61). Under the acidic (pH 4.6) soil conditions in Brazil, agronomic Znbiofortification (25 mg Zn kg −1 soil) on 29 genotypes of cowpea (Vigna unguiculata L.) was confirmed by increased Zn and soluble storage protein and decreased phytic acid in cowpea grains (62).…”

Section: Biofortification For Human Healthmentioning

confidence: 93%

Soils, Biofortification, and Human Health Under COVID-19: Challenges and Opportunities

et al. 2021

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Soil is an important source of resources required for human health and well-being. Soil is also a major environmental reservoir of pathogenic organisms. This may include viruses like the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), which through 2020 and 2021 created dramatic catastrophes worldwide as the causative agent of the coronavirus disease of 2019 (COVID-19). So, soil has both positive and negative impacts on human health. One of the major positive impacts is the transfer of nutrients from soil to plants, and from there to humans through their diet. Biofortification is able to enhance the levels of nutrients essential to human health in the crops we consume and represents a sustainable solution to address malnutrition, which in turn may strengthen the human immune system against COVID-19. This nutrient transfer works better when we have healthy soils. Therefore, soils and biofortification have important roles to play in combatting the COVID-19 pandemic. However, several questions still remain, such as what are the expected environmental impacts of COVID-19 on soil? Can SARS-CoV-2 be transmitted through soil, and under what conditions? Which soil processes and properties influence SARS-CoV-2 survival rates and times, as well as transmission? What are the specific links between soil health and COVID-19? What are the projected soil management scenarios in response to COVID-19? Questions such as these deserve more attention as the world seeks to recover from its most recent pandemic.

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Agronomic biofortification of cowpea with zinc: Variation in primary metabolism responses and grain nutritional quality among 29 diverse genotypes

Cited by 33 publications

References 32 publications

Phenotypic description of elite cowpea (Vigna ungiculata L. Walp) genotypes grown in drought-prone environments using agronomic traits

Phenotypic description of elite cowpea (Vigna ungiculata L. Walp) genotypes grown in drought-prone environments using agronomic traits

Interactive Effects of Molybdenum, Zinc and Iron on the Grain Yield, Quality, and Nodulation of Cowpea (Vignaunguiculata (L.) Walp.) in North-Western India

Soils, Biofortification, and Human Health Under COVID-19: Challenges and Opportunities

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