Light interception and radiation use efficiency in temperate quinoa (Chenopodium quinoa Willd.) cultivars

Ruiz, R.A.; Bertero, Héctor Daniel

doi:10.1016/j.eja.2008.05.003

Cited by 58 publications

(52 citation statements)

References 46 publications

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“…When significant differences among treatment means were interval of thermal time from the end of the expansion of the flag leaf and anthesis is substantially more stable than the thermal time from emergence to anthesis. This phenomenon has also been observed in quinoa (Ruiz and Bertero, 2008). In this study, thermal time from emergence to anthesis remained relatively stable between sowing dates and varieties.…”

Section: Discussionsupporting

confidence: 52%

“…Given the lack of effect of variety and low effect of sowing date, we adjusted a unique exponential function (Equation [5]), resulting in a k value of 0.46, which gave a good adjustment for all data. The k obtained was lower than those published for species such as quinoa (k = 0.52-0.58; Ruiz and Bertero, 2008), 0.61 in beet (Hoffmann and Kluge, 2010), 0.63-0.80 in faba beans (Confalone et al, 2010), and greater than that of rye (0.43; Kemanian et al, 2004), while Evers et al (2007) found values of 0.47 to 0.41 in low and high density populations of spring wheat (T. aestivum L., 'Minaret'), respectively (doses of 262 and 508 kg seeds ha -1 ). All treatments intercepted more than 95% of incident radiation (Figure 3) The LAIc values and k in 'Llareta-INIA' did not vary significantly among sowing dates and were not different from those obtained for 'Corcolén-INIA'.…”

Section: Leaf Development and Growth Laicontrasting

confidence: 48%

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Characterization of genetic coefficients of durum wheat (Triticum turgidum L. ssp. durum) Llareta-INIA and Corcolén-INIA

Garrido

Román

Silva

et al. 2013

Chilean J. Agric. Res.

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Section: Discussionsupporting

confidence: 52%

Section: Leaf Development and Growth Laicontrasting

confidence: 48%

Characterization of genetic coefficients of durum wheat (Triticum turgidum L. ssp. durum) Llareta-INIA and Corcolén-INIA

Garrido

Román

Silva

et al. 2013

Chilean J. Agric. Res.

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“…The ability to intercept solar radiation by plants depends on k value, which varies with leaf spatial structure, mainly leaf area index and leaf insertion angle American Journal of Plant Sciences [26]. This extinction coefficient reveals the degree of exponential reduction of solar radiation photons on the canopy, and this reduction infers in a low quality of PAR distribution [24].…”

Section: Discussionmentioning

confidence: 99%

Grain Yield Differences of Soybean Cultivars Due to Solar Radiation Interception

Müller¹,

Rakocevic²,

Caverzan³

et al. 2017

AJPS

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Soybean [Glycine max (L.) Merr.] growth rate and grain yield are modified by the interception and solar radiation use efficiency. Thus, it is desirable that the most of plant photosynthetic structures intercepting solar radiation in order to have increment in carbon fixation and reflection on growth and yield. The goal of this study was to assess if soybean cultivars differ in grain yield in relation to solar radiation interception. Four soybean cultivars were evaluated at stages V6, V9, R2, R4, R6 and R8. To determine the photosynthetically active radiation interception by the canopy, the plants were divided into two parts (upper and lower strata). For grain yield components, the plants were divided into three parts (upper, middle and lower thirds). Of the photosynthetically active radiation intercepted by the vegetative canopy at the reproductive stages, the maximum observed intercept was 5.2% in the lower stratum of the plants. The number of infertile nodes increased in the lower third of plants due to low interception of solar radiation in this plant region. Thus, the soybean cultivars more efficient in intercepting photosynthetically active radiation inside the vegetative canopy showed higher grain yields.

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“…In recent years, the cultivation of crops such as quinoa (Chenopodium quinoa Willd.) has gained increasing attention due to the attractive nutritive value of its grains, as well as an effort to expand the number of species which contribute to human nutrition (Ruiz and Bertero, 2008;Hirose et al, 2010). The outstanding nutritional and functional properties of quinoa seeds will be promoted by the FAO in 2013 since the United Nations has declared that year as the international year of quinoa.…”

mentioning

confidence: 99%

Nutritional Aspects of Six Quinoa (Chenopodium quinoa Willd.) Ecotypes from three Geographical Areas of Chile

Miranda

Vega‐Gálvez

Quispe‐Fuentes

et al. 2012

Chilean J. Agric. Res.

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This study explored the diversity of the quinoa crop in Chile from a nutritional perspective. Nutritional properties, minerals, vitamins, and saponin content were assessed in seeds of six Chilean quinoa (Chenopodium quinoa Willd.) ecotypes grown in three main production areas with distinctive climatic and edaphic conditions: Ancovinto and Cancosa in the NorthAltiplano or High Plateau, Cáhuil and Faro in the central coastal area, and Regalona and Villarrica in the south of the country. There were significant differences (P < 0.05) in all the nutritional properties of the quinoa seeds in all three areas. Quinoa of the Villarrica ecotype showed the highest protein content (16.10 g 100 g -1 DM) and the highest content of vitamins E and C (4.644 ± 0.240 and 23.065 ± 1.119 mg 100 g -1 DM, respectively). The highest content of vitamins B1 (0.648 ± 0.006 mg 100 g -1 DM) and B3 (1.569 ± 0.026 mg 100 g -1 DM) was found in the Regalona ecotype, while the highest value of vitamin B2 (0.081 ± 0.002 mg 100 g -1 DM) occurred in the Ancovinto ecotype. Potassium was the most abundant mineral with a maximum value of 2325.56 mg 100 g -1 DM in the Cancosa ecotype. Saponin content varied from 0.84 g 100 g -1 DM in the Villarrica ecotype to 3.91 g 100 g -1 DM in the Cáhuil ecotype. Significant differences were found among the Chilean quinoa ecotypes grown under different climatic conditions; however, all the quinoa seeds exhibited a high nutritional value. These results are compatible with the genetic differences previously observed in the three geographical areas under study. Thus, if more studies are conducted to show the particular properties of quinoa from specific areas, it would be possible in the future to coin the term "controlled designation of origin" (appellation d'origine contrôlée) and add commercial value to Chilean quinoa seeds in the domestic and international markets.

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Light interception and radiation use efficiency in temperate quinoa (Chenopodium quinoa Willd.) cultivars

Cited by 58 publications

References 46 publications

Characterization of genetic coefficients of durum wheat (Triticum turgidum L. ssp. durum) Llareta-INIA and Corcolén-INIA

Characterization of genetic coefficients of durum wheat (Triticum turgidum L. ssp. durum) Llareta-INIA and Corcolén-INIA

Grain Yield Differences of Soybean Cultivars Due to Solar Radiation Interception

Nutritional Aspects of Six Quinoa (Chenopodium quinoa Willd.) Ecotypes from three Geographical Areas of Chile

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Light interception and radiation use efficiency in temperate quinoa (Chenopodium quinoa Willd.) cultivars

Cited by 58 publications

References 46 publications

Characterization of genetic coefficients of durum wheat (Triticum turgidum L. ssp. durum) Llareta-INIA and Corcolén-INIA

Characterization of genetic coefficients of durum wheat (Triticum turgidum L. ssp. durum) Llareta-INIA and Corcolén-INIA

Grain Yield Differences of Soybean Cultivars Due to Solar Radiation Interception

Nutritional Aspects of Six Quinoa (Chenopodium quinoa Willd.) Ecotypes from three Geographical Areas of Chile

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Product

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Characterization of genetic coefficients of durum wheat (Triticum turgidum L. ssp. durum) Llareta-INIA and Corcolén-INIA

Characterization of genetic coefficients of durum wheat (Triticum turgidum L. ssp. durum) Llareta-INIA and Corcolén-INIA