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- W2349386554 abstract "In order to offer theoretical basis of water saving cultivation technique for wheat in Huang-huaihai region,dry matter accumulation,yield and water use efficiency of three wheat cultivars were studied in three irrigation treatments through field research.The results showed that under the condition of no irrigation(W0),contribution of assimilates transportation amount to kernel was higher than that of assimilates accumulation amount after anthesis in Taishan 23(T23),but it was contrary in Weimai 8(W8) and Shannong 12(S12).With the increasing of irrigation amount,assimilates transportation amount after anthesis,assimilates transportation ratio and contribution to kernel in T23 and S12 decreased,while those in W8 increased.However,an opposite change occurred in assimilates accumulation amount after anthesis and its contribution to kernel.In treatment W0,initial fluorescence(Fo) and actual photochemical efficiency of photosystem II(PSⅡ)(ΦPSⅡ) of flag leaf in T23 and W8 were higher than those in S12,indicating that the influence of water shortage on PSⅡ photochemical reaction in T23 and W8 was less significant than that in S12.Increasing the irrigation amount,the changing extent of photosynthetic rate,Fo,Fv/Fm and Fv/Fo in T23 was significantly lower than that in W8 and S12,which indicated that T23 had more stable photosynthetic properties of flag leaf.Under the same condition of irrigation,grain yield and irrigation water use efficiency of W8 were less than those of T23,but more than those of S12,while harvest index of T23 was less than that of S12,but more than that of W8.Based on comprehensive consideration of yield,water use efficiency and irrigation water use efficiency,T23 was the best one,W8 took the second place,and S12 was the worst,and the optimal irrigation regimes are suggested as irrigation at pre-sowing and jointing." @default.
- W2349386554 created "2016-06-24" @default.
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- W2349386554 date "2010-01-01" @default.
- W2349386554 modified "2023-09-23" @default.
- W2349386554 title "Effects of Irrigation on Dry Matter Production and Water Use of Different Wheat Cultivars" @default.
- W2349386554 hasPublicationYear "2010" @default.
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