Registration of Soybean Germplasm Lines R01‐416F and R01‐581F for Improved Yield and Nitrogen Fixation under Drought Stress

Chen, P.; Sneller, Clay; Purcell, Larry C.; Sinclair, Thomas R.; King, C. Andy; Ishibashi, T.

doi:10.3198/jpr2007.01.0046crg

Cited by 52 publications

(40 citation statements)

References 8 publications

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“…Nitrogen commonly limits crop yields under drought (Sinclair and Vadez, 2012) and, therefore, higher N levels in genotypes with NFDT corroborate the findings of Chen et al (2007), who reported the higher yield potential of R01-581F and R01-416F under drought because of a more effective BNF. Sinclair et al (2007) observed that more N accumulation in R01-581F and R01-416F might support, within certain limits, the maintenance of grain yield under drought compared with sensitive checks.…”

Section: Discussionsupporting

confidence: 78%

Water restriction and physiological traits in soybean genotypes contrasting for nitrogen fixation drought tolerance

Cerezini

Fagotti

Pípolo

et al. 2017

Sci. agric. (Piracicaba, Braz.)

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Biological nitrogen fixation (BNF) is essential to the economic viability of the soybean [Glycine max (L.) Merrill] crop in Brazil, but drought may impair the BNF processes. We evaluated physiological traits of nitrogen fixation drought-tolerant (NFDT) (R01-581F, R01-416F and R02-1325) and drought-susceptible (CD 215 and BRS 317) genotypes of soybean subjected to drought or regular water supply between 45 and 55 days after emergence, in an experiment under greenhouse conditions in pots containing non-sterile soil. R01-581F had more stable photosynthetic and transpiration rates, and higher intercellular CO 2 levels under drought. Drought reduced the chlorophyll concentration in all genotypes, but with less intensity in R01-581F and R02-1325. The NFDT genotypes generally showed higher concentrations of N, K and Mn in shoots, irrespective of the water condition. Exposure to drought increased total soluble sugars in nodules in all genotypes, as well as the concentrations of ureides in leaves and nodules, whereas ureides in petioles increased only in the susceptible genotypes. Drought negatively affected photosynthetic and BNF attributes; however, R01-581F showed the best performance, with potential for use in breeding programs aiming at drought-tolerant varieties.

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Section: Discussionsupporting

confidence: 78%

Water restriction and physiological traits in soybean genotypes contrasting for nitrogen fixation drought tolerance

Cerezini

Fagotti

Pípolo

et al. 2017

Sci. agric. (Piracicaba, Braz.)

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“…A fourth genotype was a nonnodulating sisterline of 'Lee' (Hartwig, 1994) which is a MG VI. The fifth genotype was R01-46F which represents a modern, high yielding, MG V genotype (Chen et al, 2007). Subtracting amounts of N contained in the above ground biomass of nodulating cultivars from non-nodulating Lee-NN, allowed calculation of amounts of N 2 fixation as a function of yield and HI, such that coefficient estimates could be used to ultimately calculate N 2 fixation for soybean cultivars of differing MG in the other irrigation experiment.…”

Section: Field Experimentsmentioning

confidence: 99%

Soybean maturity group selection: Irrigation and nitrogen fixation effects on returns

Wegerer¹,

Popp²,

et al. 2015

Field Crops Research

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“…Recently, scientists at the University of Arkansas developed and released two soybean lines, R01‐416F and R01‐581F with high yield potential and sustained nitrogen fixation capacity under moderate drought conditions (Chen et al. ). They are also working to combine both prolonged nitrogen fixation and delayed wilting into improved cultivars to better withstand droughts (Sinclair et al.…”

Section: Introductionmentioning

confidence: 99%

Two Soybean Plant Introductions Display Slow Leaf Wilting and Reduced Yield Loss under Drought

Pathan

Lee

Sleper

et al. 2014

J Agronomy Crop Science

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Due to high costs of irrigation, limited availability of irrigation water in many locations and/or lack of irrigation capabilities, genetic improvement for drought tolerance is an effective method to reduce yield loss in soybean [Glycine max (L.) Merr.]. Slow wilting and minimal yield reduction under drought are important traits in evaluating drought tolerance. Two maturity group III soybean plant introductions (PIs, PI 567690 and PI 567731) and two elite cultivars (DKB38-52 and Pana) were evaluated with and without irrigation on a sandy soil. Drought was imposed by withholding irrigation at full bloom and continued until moderate wilting was shown by the fast leaf wilting in the check cultivar, Pana. Then, irrigation was resumed until maturity. Genotypes were scored for leaf wilting during the stress period, and yields were assessed at the end of the growing season and used to calculate a drought index. Yields of the exotic PIs were lower than those of the checks under both drought and well-watered conditions. However, the PIs exhibited significantly lower wilting and less yield loss under drought (higher drought index) than check cultivars. The two PIs may have useful genes to develop drought-tolerant germplasm and cultivars and maybe useful in genetic and physiological studies to decipher mechanisms responsible for improving yield under limited water availability.

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Registration of Soybean Germplasm Lines R01‐416F and R01‐581F for Improved Yield and Nitrogen Fixation under Drought Stress

Cited by 52 publications

References 8 publications

Water restriction and physiological traits in soybean genotypes contrasting for nitrogen fixation drought tolerance

Water restriction and physiological traits in soybean genotypes contrasting for nitrogen fixation drought tolerance

Soybean maturity group selection: Irrigation and nitrogen fixation effects on returns

Two Soybean Plant Introductions Display Slow Leaf Wilting and Reduced Yield Loss under Drought

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