Effects of carbon dioxide, temperature and ultraviolet-B radiation and their interactions on soybean (Glycine max L.) growth and development

Koti, Sailaja; Reddy, K. Raja; Kakani, Vijaya Gopal; Zhao, Duli; Gao, Wei

doi:10.1016/j.envexpbot.2006.05.001

Cited by 91 publications

(84 citation statements)

References 42 publications

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“…The large effect of [CO 2 ] on photosynthesis at high temperature is not observed in all C 3 plants, including rice (Vu et al, 1997), kidney beans (Prasad et al, 2002) and peanuts (Prasad et al, 2003). More recently, Koti et al (2007) also reported that there was no interaction between [CO 2 ] and temperature on photosynthetic rate in soybeans grown under 30/22℃ and 38/30℃ day/night temperature regimes, but the responses to both [CO 2 ] and temperature differed among six soybean genotypes. These inter-and intraspecific differences could be partially attributed to different temperature optima for photosynthesis.…”

Section: Temperature Effects On Seed Weight Seed [N] and Their Relamentioning

confidence: 88%

Effects of elevated CO2 concentration and temperature on seed production and nitrogen concentration in soybean (Glycine max (L.) Merr.)

Kumagai

Tacarindua

Homma

et al. 2012

J. Agric. Meteorol.

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The effects of elevated carbon dioxide concentration ([CO 2 ]) and temperature and their interactions on leaf photosynthesis, reproductive processes, seed weight and seed nitrogen concentration ([N]) of soybeans (Glycine max (L.) Merr.) were investigated using temperature gradient chambers. Plants were grown under four regimes comprising two levels of [CO 2 ], ambient (LC) and ambient＋ 200 μmol mol -1 (HC), and two levels of temperature, low (LT) and high (HT, LT＋～3℃). Plant and seed weights were significantly increased by elevated [CO 2 ] in both temperature regimes. Increased seed weight under elevated [CO 2 ] was mainly because of the production of more nodes and seeds per plant. Increased temperature significantly increased the number of seeds per plant but decreased individual seed weight in both [CO 2 ] regimes. Increased temperature therefore had no effect on seed weight. The increased seed number per plant in the HT regimes resulted from increased pod numbers per node. The light-saturated photosynthetic rate increased with increasing [CO 2 ] and temperature, presumably resulting in more seeds per plant. The reduction in individual seed weight with increased temperature was attributed mainly to lower individual seed growth rate and fewer cotyledon cells per seed. The reduction in individual seed weight with increased temperature was less pronounced in the HC regime than in the LC regime, and there was a significant interaction between [CO 2 ] and temperature. However, there was no interaction between [CO 2 ] and temperature for seed weight. Neither individual effects nor interaction of [CO 2 ] and temperature were observed for seed [N]. This study raises the possibility that projected increases in atmospheric [CO 2 ] during the 21st century will increase the yield of soybeans without decreasing seed [N] in regions that have near or below optimum temperatures (near 25℃ or above) for soybean yield.

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Section: Temperature Effects On Seed Weight Seed [N] and Their Relamentioning

confidence: 88%

Effects of elevated CO2 concentration and temperature on seed production and nitrogen concentration in soybean (Glycine max (L.) Merr.)

Kumagai

Tacarindua

Homma

et al. 2012

J. Agric. Meteorol.

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“…Some physiological mechanisms by which T m , T n and DTR may affect crop yields have been partly revealed for rice (Matsui & Horie 1992, Tao et al 2006, Tao et al 2008, wheat (Metho et al 1999), maize (Muchow 1990, Schoper et al 1986) and soybean (Koti et al 2007). Higher temperatures may accelerate crop development and reduce grain filling duration, while temperature extremes during flowering can reduce grain or seed number (e.g.…”

Section: Response Patterns and Mechanismsmentioning

confidence: 99%

Climate–crop yield relationships at provincial scales in China and the impacts of recent climate trends

et al. 2008

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Understanding climate-yield relationships and the impacts of recent climate trends on crop productivity on a large scale is an important step in predicting regional agricultural production. In this study we investigated climate-crop relationships, recent trends in seasonal climate (maximum and minimum temperatures, diurnal temperature range and precipitation) and their impacts on the yields of major crops (i.e. rice, wheat, maize and soybean) at provincial scales throughout China over the last few decades. We found that major crop yields were significantly related to growing season climate in the main production regions of China, and that growing season temperature had a generally significant warming trend. Due to the trends in growing season climate, total rice production in China was estimated to have increased by 3. , respectively, during 1979-2002. The warming trend increased rice yield in northeast China and soybean in north and northeast China; however, it decreased maize yield in 7 provinces (autonomous region or municipality) and wheat yield in 3 provinces. Our analysis presents the general response patterns of regional agricultural productivity to seasonal climate variability and change over the last few decades. Crop response mechanisms to local seasonal climate change (and variability) need further investigation to better understand the patterns and predict future consequences of climate change and variability on regional agricultural production.

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“…Negative and positive effects of temperature have been reported in many studies. Higher temperatures may accelerate crop development and reduce the duration of grain filling but extremely high temperatures during flowering can reduce grain or seed production (Cheikh & Jones 1994, Wilhelm et al 1999, Engelen-Eigles et al 2000, Koti et al 2007). Lower temperatures can re duce crop yields because of decreased crop growth or because of the increased risk of chilling injury (Baker & Allen 1993, Thakur et al 2010).…”

Section: Relative Impacts Of Temperature and Precipitationmentioning

confidence: 99%

Varying temporal and spatial effects of climate on maize and soybean affect yield prediction

2011

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ABSTRACT:The relationship between climatic factors and crop yields for maize and soybeans in 3 major producing countries (the United States, Brazil, and China) was analyzed statistically. Temporal changes in the climate−yield relationship were considered, and the temporal and spatial variations were evaluated. County-level data from 1980 to 2006 were collected for each country and allocated to 1.125°× 1.125°grids. Data were analyzed for temporal changes in the effect of climate on yields using the particle filtering method for each grid. The 'current' effect of temperature on crop yields was shown to be geographically symmetric around the optimal temperatures (19.51°C for maize and 20.66°C for soybeans) in the Northern Hemisphere. In the Southern Hemisphere, the 'current' effect of precipitation was more influential than that of temperature. The effects of these climatic factors changed over time. Whereas the negative effect of high temperatures has been mitigated around the corn belt of the United States during the last 3 decades, it has intensified in Brazil, northern China, and the southern United States for maize. Consequently, predicted future yields differed marginally depending on the relationship (past or current effect) used for the prediction, even when they were summarized on country scales. This study suggests that temporal changes in the relationship between weather and crop yields should be considered for better future predictions.

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Effects of carbon dioxide, temperature and ultraviolet-B radiation and their interactions on soybean (Glycine max L.) growth and development

Cited by 91 publications

References 42 publications

Effects of elevated CO2 concentration and temperature on seed production and nitrogen concentration in soybean (Glycine max (L.) Merr.)

Effects of elevated CO2 concentration and temperature on seed production and nitrogen concentration in soybean (Glycine max (L.) Merr.)

Climate–crop yield relationships at provincial scales in China and the impacts of recent climate trends

Varying temporal and spatial effects of climate on maize and soybean affect yield prediction

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