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The Effects of Photosynthetic Characters and Water Use Efficiency under Drought Stress in Sugarcane Materials

Lin Xi-hao

Open publisher page 1 citations

Abstract

The photosynthetic characters and water use efficiency were measured under drought stress with six sugarcane materials planted in pots.The results showed that net photosynthetic rate,transpiration rate and stomatal conductance all decreased,but intercellular CO2 concentration and water use efficiency had different change tendency with the increasing of drought stress time.There was higher correlation among photosynthetic traits in different sugarcane materials.ROC22 and S.spontaneum L.performed to be highly resistant to drought.Fruit Sugarcane and KN90-445 performed middle resistance.S.robustum Brandes et Jeswiet ex Grassl and ROC16 performed to be poor resistant to drought.

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What this paper is about

The photosynthetic characters and water use efficiency were measured under drought stress with six sugarcane materials planted in pots.The results showed that net photosynthetic rate,transpiration rate and stomatal conductance all decreased,but intercellular CO2 concentration and water use efficiency had different change tendency with the increasing of drought stress time.There was higher correlation among photosynthetic traits in different sugarcane materials.ROC22 and S.spontaneum L.performed to be highly resistant to drought.Fruit Sugarcane and KN90-445 performed middle resistance.S.robustum Brandes et Jeswiet ex Grassl and ROC16 performed to be poor resistant to drought.

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Available abstract

The photosynthetic characters and water use efficiency were measured under drought stress with six sugarcane materials planted in pots.The results showed that net photosynthetic rate,transpiration rate and stomatal conductance all decreased,but intercellular CO2 concentration and water use efficiency had different change tendency with the increasing of drought stress time.There was higher correlation among photosynthetic traits in different sugarcane materials.ROC22 and S.spontaneum L.performed to be highly resistant to drought.Fruit Sugarcane and KN90-445 performed middle resistance.S.robustum Brandes et Jeswiet ex Grassl and ROC16 performed to be poor resistant to drought.

Key concepts: Transpiration, Photosynthesis, Stomatal conductance, Drought stress, Water-use efficiency, Drought resistance, Water stress, Agronomy

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