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• W4223496222 abstract "Seed innovation is of great importance for more sustainable agriculture and food systems. Using data on nationally approved rice varieties and farmers’ adopted varieties, this study examined rice varietal trait changes in China over the past four decades and explored the impact of national crop varietal approval policies on approved rice traits as well as the effect of seed subsidies on adopted rice trait changes. The results showed that the yield of approved varieties and adopted varieties showed an upward trend over the past decades, and the yield of approved varieties was slightly higher than that of adopted varieties in most years. The rice quality of approved rice varieties showed a trend of continuous improvement but the adopted varieties showed a downward trend. The disease resistance of the approved varieties failed to show an increasing trend overall while the adopted varieties remained unchanged. National crop variety approval policies seemed to exert a significant positive impact on approved rice yield traits but exert a negative influence on disease resistance. Subsidies for superior seed varieties significantly increased adopted rice quality but decreased yield. The results suggest that national crop variety approval policies are the gatekeeper of improved rice, so the government can improve the policies to more meet farmers’ and consumers’ needs." @default.
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• W4223496222 date "2022-04-12" @default.
• W4223496222 modified "2023-09-27" @default.
• W4223496222 title "Impact of Government Policies on Seed Innovation in China" @default.
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• W4223496222 doi "https://doi.org/10.3390/agronomy12040917" @default.
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