Single rice growth period was prolonged by cultivars shifts, but yield was damaged by climate change during 1981–2009 in <scp>C</scp>hina, and late rice was just opposite

Tao, Fulu; Zhang, Zhao; Shi, Wenjiao; Liu, Yujie; Xiao, Dengpan; Zhang, Shuai; Zhu, Zhu; Wang, Meng; Liu, Fengshan

doi:10.1111/gcb.12250

Cited by 171 publications

(112 citation statements)

References 31 publications

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“…Similar results were reported by Tao et al (2013) and Dingkuhn et al (2015), whose absolute r values were equal to 0.14 (p < 0.01) and 0.10 (p < 0.01), respectively, but smaller than the correlations found in the present study. The occurrence of a low solar radiation in this period significantly reduces the number and weight of spikelets, consequently reducing yield.…”

Section: Resultssupporting

confidence: 92%

Yield and morphophysiological indices of irrigated rice genotypes in contrasting ecosystems1

Santos

Zanon

Cuadra

et al. 2017

Pesqui. Agropecu. Trop.

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Rice phenology and development are events controlled by environmental and genetic factors, and the yield potential of the crop is defined by their interaction. This study aimed at analyzing the performance of irrigated rice genotypes in contrasting ecosystems and their effects on morphophysiological characteristics. Two ecosystems (tropical and subtropical) were analyzed, as well as cultivars recommended for tropical (BRS Catiana and BRS Jaçanã) and subtropical (BRS Pampa, BRS 7 Taim and IRGA 424) regions. The experiments were arranged in a complete randomized block design, with four replicates, being the factors the genotypes, sowing times and sites. The phenological development, biomass dynamics, radiation use efficiency and grain yield were evaluated. The accumulated degree-days demand for flowering decreased faster in the tropical ecosystem than in the subtropical ecosystem for late sowing. The radiation use efficiency values were similar in the subtropical ecosystem and yield was high for all sowing dates. On the other hand, the tropical ecosystem showed a high variation for radiation use efficiency values and yield. The higher accumulation of degree-days and solar radiation during the reproductive and grain-filling phases contributed to increase yield in both ecosystems.

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Section: Resultssupporting

confidence: 92%

Yield and morphophysiological indices of irrigated rice genotypes in contrasting ecosystems1

Santos

Zanon

Cuadra

et al. 2017

Pesqui. Agropecu. Trop.

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“…Previous studies have documented that rice productivity will be vulnerable to climate change in southeastern Asia and southern China (Tao et al, 2008;Lobell et al, 2011), particularly due to extreme high temperature (Yoshida, 1981;Horie et al, 1996;Matsui et al, 1997aMatsui et al, , 1997bJagadish et al, 2007;Tao et al, 2013a;Tao and Zhang, 2013). The frequency of climate extreme events is increasing with ongoing climate change (Porter, 2005;Tubiello et al, 2007;Semenov and Shewry, 2011;Tao et al, 2013b;Zhang et al, 2014). There are increasing efforts to investigate the impacts of extreme temperature on crop growth and yield using control-environmental experiments (Jagadish et al, 2007), statistical approaches (Welch et al, 2010;Sun and Huang, 2011;Lobell et al, 2011;Tao et al, 2013b;Wang et al, 2014), and improved crop simulation models (Challinor et al, 2005;Tao and Zhang, 2013;Asseng et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Changes in extreme temperatures and their impacts on rice yields in southern China from 1981 to 2009

Zhang

Tao

Zhang

2016

Field Crops Research

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a b s t r a c tExtreme temperature impacts on field crop are of key concern and increasingly assessed, however the studies have seldom taken into account the automatic adaptations such as shifts in planting dates, phenological dynamics and cultivars. In this present study, trial data on rice phenology, agro-meteorological hazards and yields during 1981-2009 at 120 national agro-meteorological experiment stations were used. The detailed data provide us a unique opportunity to quantify extreme temperature impacts on rice yield more precisely and in a setting with automatic adaptations. In this study, changes in an accumulated thermal index (growing degree day, GDD), a high temperature stress index (>35• C high temperature degree day, HDD), and a cold stress index (<20• C cold degree day, CDD), were firstly investigated. Then, their impacts on rice yield were further quantified by a multivariable analysis. The results showed that in the past three decades, for early rice, late rice and single rice in western part, and single rice in other parts of the middle and lower reaches of Yangtze River, respectively, rice yield increased by 5.83%, 1.71%, 8.73% and 3.49% due to increase in GDD. Rice yield was generally more sensitive to high temperature stress than to cold temperature stress. It decreased by 0.14%, 0.32%, 0.34% and 0.14% due to increase in HDD, by contrast increased by 1.61%, 0.26%, 0.16% and 0.01% due to decrease in CDD, respectively. In addition, decreases in solar radiation reduced rice yield by 0.96%, 0.13%, 9.34% and 6.02%. In the past three decades, the positive impacts of increase in GDD and the negative impacts of decrease in solar radiation played dominant roles in determining overall climate impacts on yield. However, with climate warming in future, the positive impacts of increase in GDD and decrease in CDD will be offset by increase in HDD, resulting in overall negative climate impacts on yield. Our findings highlight the risk of heat stress on rice yield and the importance of developing integrated adaptation strategies to cope with heat stress.

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“…Meanwhile, the lengths of the growing period and vegetative growing period exhibited a significantly decreasing trend at approximately 30 % of the investigated stations, in contrast to a prolonged reproductive period at approximately 60 % of the stations. Moreover, Tao et al (2013) further proved the relationship between rice phenological change and warming varied in different rice cultivated systems, cultivars, and rice growing periods. In the study of the spatiotemporal changes in maize phenology, temperatures and their correlations in Northeast China (NE) between 1990 and 2012, Li et al (2014) found significantly advanced seedling/heading dates, delayed maturity dates, and increased growing periods at more investigated stations, which indicated the substantial influence of agronomic factors on the shift in maize phenology.…”

Section: Introductionmentioning

confidence: 90%

Dynamic variability of the heading–flowering stages of single rice in China based on field observations and NDVI estimations

et al. 2014

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Although many studies have indicated the consistent impact of warming on the natural ecosystem (e.g., an early flowering and prolonged growing period), our knowledge of the impacts on agricultural systems is still poorly understood. In this study, spatiotemporal variability of the heading-flowering stages of single rice was detected and compared at three different scales using field-based methods (FBMs) and satellite-based methods (SBMs). The headingflowering stages from 2000 to 2009 with a spatial resolution of 1 km were extracted from the SPOT/VGT NDVI time series data using the Savizky-Golay filtering method in the areas in China dominated by single rice of Northeast China (NE), the middle-lower Yangtze River Valley (YZ), the Sichuan Basin (SC), and the Yunnan-Guizhou Plateau (YG). We found that approximately 52.6 and 76.3 % of the estimated heading-flowering stages by a SBM were within ±5 and ±10 days estimation error (a root mean square error (RMSE) of 8.76 days) when compared with those determined by a FBM. Both the FBM data and the SBM data had indicated a similar spatial pattern, with the earliest annual average heading-flowering stages in SC, followed by YG, NE, and YZ, which were inconsistent with the patterns reported in natural ecosystems. Moreover, diverse temporal trends were also detected in the four regions due to different climate conditions and agronomic factors such as cultivar shifts. Nevertheless, there were no significant differences (p>0.05) between the FBM and the SBM in both the regional average value of the phenological stages and the trends, implying the consistency and rationality of the SBM at three scales.

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Single rice growth period was prolonged by cultivars shifts, but yield was damaged by climate change during 1981–2009 in China, and late rice was just opposite

Cited by 171 publications

References 31 publications

Yield and morphophysiological indices of irrigated rice genotypes in contrasting ecosystems1

Yield and morphophysiological indices of irrigated rice genotypes in contrasting ecosystems1

Changes in extreme temperatures and their impacts on rice yields in southern China from 1981 to 2009

Dynamic variability of the heading–flowering stages of single rice in China based on field observations and NDVI estimations

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