Classification of Pigeonpea (Cajanus cajan (L.) Millsp.) Genotypes for Zinc Efficiency

Behera, Sanjib Kumar; Shukla, Arvind Kumar; Tiwari, Pankaj Kumar; Tripathi, Ajay; Singh, Pooja; Trivedi, V.K.; Patra, A. K.; Das, Sudipta

doi:10.3390/plants9080952

Cited by 19 publications

(18 citation statements)

References 38 publications

(36 reference statements)

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“…To enhance the variability for Fe and Zn in the primary gene pool, Sharma et al (2020) attempted interspecific crosses with Cajanus platycarpus . Despite this, a good response to agronomic biofortification for Fe and Zn was reported in pigeonpea ( Gopalakrishnan et al, 2016 ; Hanumanthappa et al, 2018 ; Behera et al, 2020 ). However, Upadhyaya et al (2010) identified 14 high Zn accessions from core and mini-core collections of pigeonpea available in Genebank at ICRISAT, India.…”

Section: Discussionmentioning

confidence: 99%

Grain Nutrients Variability in Pigeonpea Genebank Collection and Its Potential for Promoting Nutritional Security in Dryland Ecologies

et al. 2022

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Pigeonpea, a climate-resilient legume, is nutritionally rich and of great value in Asia, Africa, and Caribbean regions to alleviate malnutrition. Assessing the grain nutrient variability in genebank collections can identify potential sources for biofortification. This study aimed to assess the genetic variability for grain nutrients in a set of 600 pigeonpea germplasms conserved at the RS Paroda Genebank, ICRISAT, India. The field trials conducted during the 2019 and 2020 rainy seasons in augmented design with four checks revealed significant differences among genotypes for all the agronomic traits and grain nutrients studied. The germplasm had a wider variation for agronomic traits like days to 50% flowering (67–166 days), days to maturity (112–213 days), 100-seed weight (1.69–22.17 g), and grain yield per plant (16.54–57.93 g). A good variability was observed for grain nutrients, namely, protein (23.35–29.50%), P (0.36–0.50%), K (1.43–1.63%), Ca (1,042.36–2,099.76 mg/kg), Mg (1,311.01–1,865.65 mg/kg), Fe (29.23–40.98 mg/kg), Zn (24.14–35.68 mg/kg), Mn (8.56–14.01 mg/kg), and Cu (7.72–14.20 mg/kg). The germplasm from the Asian region varied widely for grain nutrients, and the ones from African region had high nutrient density. The significant genotype × environment interaction for most of the grain nutrients (except for P, K, and Ca) indicated the sensitivity of nutrient accumulation to the environment. Days to 50% flowering and days to maturity had significant negative correlation with most of the grain nutrients, while grain yield per plant had significant positive correlation with protein and magnesium, which can benefit simultaneous improvement of agronomic traits with grain nutrients. Clustering of germplasms based on Ward.D2 clustering algorithm revealed the co-clustering of germplasm from different regions. The identified top 10 nutrient-specific and 15 multi-nutrient dense landraces can serve as promising sources for the development of biofortified lines in a superior agronomic background with a broad genetic base to fit the drylands. Furthermore, the large phenotypic data generated in this study can serve as a raw material for conducting SNP/haplotype-based GWAS to identify genetic variants that can accelerate genetic gains in grain nutrient improvement.

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Section: Discussionmentioning

confidence: 99%

Grain Nutrients Variability in Pigeonpea Genebank Collection and Its Potential for Promoting Nutritional Security in Dryland Ecologies

et al. 2022

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“…However, the trend across three harvests was similar for Aliyu‐Amba and Hawassa, but a different trend was observed at Wondo‐Genet. The variability among locations might be attributed to the rainfall and temperature of the locations (Mishra et al., 2017) and the physico‐chemical characteristics of the soil (Behera et al., 2020). The effect of IPS was not consistent across locations.…”

Section: Discussionmentioning

confidence: 99%

Location and plant spacing affect biomass yield and nutritional value of pigeon pea forage

et al. 2021

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An experiment was conducted to evaluate the effects of row spacing (RS) and interplant spacing (IPS) on the yield of total biomass, leaf, and edible twigs, and nutritive value of pigeon pea (Cajanus cajan L. Millsp.) at three locations in the Rift Valley area of Ethiopia. The authors used a randomized completed block design with three replications in 3 × 3 factorial arrangement: three RS (25, 50, and 75 cm) and three IPS (15, 30, and 45 cm). Row spacing × IPS of 25 × 30 cm and 50 × 15 cm gave greater total biomass yield than the other RS and IPS combinations. A similar result was found for edible plant yield. At Hawassa, the greater leaf crude protein was found for the wider IPS of 45 cm than the narrower IPS of 30 cm (318 vs. 303 g kg–1). At Wondo‐Genet, the greater leaf in vitro digestible organic matter (597 vs. 582 g kg–1) was found for the wider RS of 75 cm than narrower RS. Similar to leaf, a better nutritional value of edible twigs was found for a wider RS and IPS than narrower RS and IPS at Hawassa and Wondo‐Genet. In contrast at Aliyu‐Amba, a better nutritional value of edible twigs was found for narrower RS and IPS than the wider spacing. Thus, it can be concluded that RS × IPS of 25 × 30 cm or 50 × 15 cm are advisable for pigeon pea forage production.

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“…Significant genotypic differences for Zn efficiency have been observed in many crop species, such as rice (Oryza sativa) [20.21], wheat It is well known that if researchers can identify crop traits that improve Zn efficiency, growers could have improved yields in Zn-poor soils worldwide. Significant genotypic differences for Zn efficiency have been observed in many crop species, such as rice (Oryza sativa) [20.21], wheat (Triticum aestivum) [9], common beans (Phaseolus vulgaris) [10], maize (Zea mays) [22], sorghum (Sorghum bicolor) [23], soybeans (Glycine max), tomatoes (Solanum lycopersicum) [24], chickpeas (Cicer arietinum) [18,19], barley (Hordeum vulgare) [25], and pigeon peas (Cajanus cajan) [26]. There is increasing importance for Zn-efficient cultivars that could adapt to and cope with low-Zn soils.…”

Section: Evidence Of Natural Genetic Variation For Plant Zn Efficiency: a Large Untapped Resource For Overcoming Low-zn Stressmentioning

confidence: 99%

Zinc (Zn): The Last Nutrient in the Alphabet and Shedding Light on Zn Efficiency for the Future of Crop Production under Suboptimal Zn

Hacisalihoglu

2020

Plants

104

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At a global scale, about three billion people have inadequate zinc (Zn) and iron (Fe) nutrition and 500,000 children lose their lives due to this. In recent years, the interest in adopting healthy diets drew increased attention to mineral nutrients, including Zn. Zn is an essential micronutrient for plant growth and development that is involved in several processes, like acting as a cofactor for hundreds of enzymes, chlorophyll biosynthesis, gene expression, signal transduction, and plant defense systems. Many agricultural soils are unable to supply the Zn needs of crop plants, making Zn deficiency a widespread nutritional disorder, particularly in calcareous (pH > 7) soils worldwide. Plant Zn efficiency involves Zn uptake, transport, and utilization; plants with high Zn efficiency display high yield and significant growth under low Zn supply and offer a promising and sustainable solution for the production of many crops, such as rice, beans, wheat, soybeans, and maize. The goal of this review is to report the current knowledge on key Zn efficiency traits including root system uptake, Zn transporters, and shoot Zn utilization. These mechanisms will be valuable for increasing the Zn efficiency of crops and food Zn contents to meet global needs for food production and nutrition in the 21st century. Furthermore, future research will address the target genes underlying Zn efficiency and the optimization of Zn efficiency phenotyping for the development of Zn-efficient crop varieties for more sustainable crop production under suboptimal Zn regimes, as well food security of the future.

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Classification of Pigeonpea (Cajanus cajan (L.) Millsp.) Genotypes for Zinc Efficiency

Cited by 19 publications

References 38 publications

Grain Nutrients Variability in Pigeonpea Genebank Collection and Its Potential for Promoting Nutritional Security in Dryland Ecologies

Grain Nutrients Variability in Pigeonpea Genebank Collection and Its Potential for Promoting Nutritional Security in Dryland Ecologies

Location and plant spacing affect biomass yield and nutritional value of pigeon pea forage

Zinc (Zn): The Last Nutrient in the Alphabet and Shedding Light on Zn Efficiency for the Future of Crop Production under Suboptimal Zn

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