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- W2971303019 abstract "In the Australian grainbelt, early winter rainfall has declined during the last 30 years, and farmers sow their crops dry, increasing the risk of early season drought. This study aimed to examine whether differences in the root systems were associated with tolerance to early season drought. Three wheat cultivars with different root systems were grown in 1 m columns in a glasshouse. Immediately after sowing in dry soil, 440 mL water (equivalent to 25 mm rainfall) was supplied to each column, and no water was added to induce the early-season drought for the next 30 days. Shoot and root traits were measured at the end of the early season drought, anthesis and at maturity, respectively. The restricted water supply reduced Ψleaf, stomatal conductance, leaf photosynthetic rate, shoot and root biomass. Early season drought delayed phenology in all cultivars, but there was recovery of root and shoot biomass at anthesis in all three cultivars. Leaf area and shoot biomass at anthesis in Bahatans-87 (large root system) recovered better than Tincurrin (small root system). At maturity, early season drought reduced grain yield more in Tincurrin than Bahatans-87. The slow phenology of Bahatans-87 allowed greater recovery after the drought in leaf area and shoot biomass, which may explain the smaller reduction in grain yield after early season drought." @default.
- W2971303019 created "2019-09-05" @default.
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- W2971303019 creator A5066453763 @default.
- W2971303019 creator A5075789864 @default.
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- W2971303019 date "2019-08-27" @default.
- W2971303019 modified "2023-10-15" @default.
- W2971303019 title "Early Season Drought Largely Reduces Grain Yield in Wheat Cultivars with Smaller Root Systems" @default.
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- W2971303019 doi "https://doi.org/10.3390/plants8090305" @default.
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