Potential Breeding for High Nitrogen Fixation in &amp;lt;i&amp;gt;Pisum sativum&amp;lt;/i&amp;gt; L.: Germplasm Phenotypic Characterization and Genetic Investigation

Abi-Ghanem, Rita; Bodah, Eliane Thaines; Wood, M.

doi:10.4236/ajps.2013.48193

Cited by 12 publications

(6 citation statements)

References 7 publications

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“…It has been shown that the potential of biological N fixation varies greatly among pea cultivars (Abi-Ghanem et al, 2013). This reveals a unique opportunity for improving N fixation, protein content, and yield in pea breeding programs through the genetic crossing and selection.…”

Section: Discussionmentioning

confidence: 99%

Variation in Yield, Starch, and Protein of Dry Pea Grown Across Montana

et al. 2017

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Core Ideas Dry pea yield, protein, and resistant starch varied greatly across Montana. Yield and protein were mainly determined by environments. Resistant starch is controlled by genetics to a great extent. Effects of drought index, growth period, seed size, and seed weight on yield, protein, and starch were analyzed. Pea (Pisum sativum L.) has long been an important component of the human diet, providing an excellent source of protein. In addition to its protein, pea starch, especially resistant starch (RS), has received an extensive attention in food industries in recent years. We evaluated nine pea cultivars varying in cotyledon color, grain weight, maturity group, and phenology planted at five locations with diverse climatic conditions across Montana in 2013 and 2014 to assess genetic and environmental factors affecting their yield, protein, RS, and total starch (TS). Grain yield varied from 982 to 5951 kg ha−1, RS content ranged from 5 to 53 g kg−1, and protein from 159 to 251 g kg−1. Statistical analysis showed that environment was the most important driving factor in grain yield, protein, and TS determination whereas RS content was mainly determined by cultivar. Drought at all phenological stages reduced pea yield and different cultivars tended to respond differently. Yield was positively correlated with protein, implying a potential to select/breed a cultivar with higher yield and protein. Protein was negatively correlated with TS, thus protein‐ or starch‐type cultivars may be bred for different end users. Compared to other cultivars tested, DS Admiral was the most promising one with above average yield, protein, and RS.

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Section: Discussionmentioning

confidence: 99%

Variation in Yield, Starch, and Protein of Dry Pea Grown Across Montana

et al. 2017

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“…Many factors are known to influence bacterial distribution in soils, which include the presence of legume host, and environmental conditions such as soil factors (Keyser and Li, 1992; Wani et al, 1995; Dakora and Keya, 1997; Paffetti et al, 1998; Zahran, 1999; Peoples et al, 2009; Abi-Ghanem et al, 2013; Vitousek et al, 2013; Puozaa et al, 2017). These factors can affect all aspects of legume nodulation and N 2 fixation which include a decrease in rhizobial survival and diversity in soils as well as their direct effect on nitrogenase activity (Serraj, 2004).…”

Section: Factors Influencing Bradyrhizobium Distribution In African Smentioning

confidence: 99%

Widespread Distribution of Highly Adapted Bradyrhizobium Species Nodulating Diverse Legumes in Africa

Jaiswal

Dakora

2019

Front. Microbiol.

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Bradyrhizobium is one of the most cosmopolitan and diverse bacterial group nodulating a variety of host legumes in Africa, however, the diversity and distribution of bradyrhizobial symbionts nodulating indigenous African legumes are not well understood, though needed for increased food legume production. In this review, we have shown that many African food legumes are nodulated by bradyrhizobia, with greater diversity in Southern Africa compared to other parts of Africa. From a few studies done in Africa, the known bradyrhizobia (i.e., Bradyrhizobium elkanii, B. yuanmingense ) along with many novel Bradyrhizobium species are the most dominant in African soils. This could be attributed to the unique edapho-climatic conditions of the contrasting environments in the continent. More studies are needed to identify the many novel bradyrhizobia resident in African soils in order to better understand the biogeography of bradyrhizobia and their potential for inoculant production.

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“…Recent studies showed differences in nitrogen fixation between soybean genotypes. 11) *Corresponding author. Email: yblee@gnu.ac.krUntil 1980, Bradyrhizobium japonicum was considered to be the sole symbiont of soybean.…”

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confidence: 99%