Importance of Na Content and Water Status for Growth in Na-Salinized Rice and Tomato Plants
スポンサーリンク
概要
- 論文の詳細を見る
The effect of a high Na content in plant on rice (Oryza sativa L. cv. Yaimabiko) and tomato (Lyeopersicon eseulentum Mill cv. Saturn) growth was investigated. The high Na content was achieved by the supply of NaCl (rice: R1: 40, R2: 60, R3: 80, R4: 100, R5: 120; tomato: R1': 10, R2': 20, R3': 40, R4': 60, R5': 80 mmol(+) kg^<-1>) to the nutrient solution or spray of NaCl (rice: L1: 40, L2: 60, L3: 80, L4: 100, L5: 120; tomato: L1': 10, L2': 20, L3': 40, L4': 60, L5': 80 mmol(+) kg^<-1>) on the leaves. The high Na content in the tops suppressed the transport of K to the tops in rice and the uptake of K by the roots in tomato under Na spray conditions. The L5' tomato leaves could not tolerate the high Na content (or lower osmotic potential (OP)) and exhibited necrosis. The Na spray resulted in a larger Na accumulation in the tops of rice and tomato than the Na supply at 2 d. This trend persisted until 8 d in tomato, but the Na supply resulted in a larger accumulation of Na in the rice tops. In the Na supply treatments, the T/R ratio of UC (uptake concentration accompanied with transpiration) of Na was considerably higher than that in the control (CO) for rice, while approximately the same values as those of CO were obtained in tomato. These results indicate a difference in the response of the protection and maintenance of the structure and function of the roots of the spedes to a high Na concentration. A close negative relationship was observed between the UC of Na and K for both species in the Na supply treatments, and a larger slope was obtained in tomato. Water absorption was related to osmotic absorption for rice, and to transpiration for tomato. In tomato, the increasing eation content led to the increase in the difference of OP between tops and roots, and contributed to the increase of water absorption. The water deficit (WD) in rice tops increased with the increase of Na supply concentrations, unlike in tomato tops. The Na spray led to negative WD values in tomato tops and decreased them with the increase of Na concentrations. In both species, the lower the WD, the larger was the dry weight (DW) under a certain Na content in the tops. These results suggest that an adequate water status may improve plant growth and may enable to overcome the detrimental effect of Na.
- 社団法人日本土壌肥料学会の論文
著者
-
Fujiyama Hideyasu
Faculty Of Agriculture Tottori University
-
Song J
Faculty Of Agriculture Tottori University
-
Song Ji
Faculty Of Agriculture Tottori University
関連論文
- Similarity of Bacterial Community Structure between Asian Dust and Its Sources Determined by rRNA Gene-Targeted Approaches
- Effect of K-type and Ca-type artificial zeolites applied to high sodic soil on the growth of plants different in salt tolerance(Plant Nutrition)
- Ameliorative Effect of K-type and Ca-Type Artificial Zeolites on the Growth of Beets in Saline and Sodic Soils
- STUDIES ON IMPROVEMENT OF NUTRIENT AND WATER SUPPLY IN CROP CULTIVATION ON SAND DUNE SOIL : I. Comparison of Irrigation Methods
- Adequate internal water status of NaCl-salinized rice shoots enhanced selective calcium and potassium absorption(Soil Chemistry and Mineralogy)
- 11-15 Effects of Soil Salinity on Growth and Metal Elements Absorption of Tomato, Asparagus and Bean
- STUDIES ON IMPROVEMENT OF NUTRIENT AND WATER SUPPLY IN CROP CULTIVATION ON SAND DUNE SOIL : 2. Effect Of Fertilizer Placement and Irrigation Method on Growth and Nutrient Uptake of Tomatoes
- 11-8 Nitrate uptake by different plants under Cl and SO4 salinity in relation to water uptake
- Sodium tolerance of plants in relation to ionic balance and the absorption ability of microelements(Plant Nutrition)
- STUDIES ON RESPONSES OF PLANTS GROWN ON SAND DUNE SOIL TO A NUTRIENT SOLUTION APPLIED BY DRIP IRRIGATION : III. Effect of Activity Ratio of Potassium to Calcium and Magnesium in Nutrient Solution on Lettuce Growth
- Difference in Response of Rice and Tomato Subjected to Sodium Salinization to the Addition of Calcium
- STUDIES ON RESPONSES OF PLANTS GROWN ON SAND DUNE SOIL TO A NUTRIENT SOLUTION APPLIED BY DRIP IRRIGATION : I. Relation between Behavior of Nutrients in the Soil and Nutrient Uptake by Tomatoes
- Salt Tolerance of Grain Crops in Relation to Ionic Balance and Ability to Absorb Microelements
- Response of Vegetable Crops to Salinity and Sodicity in Relation to Ionic Balance and Ability to Absorb Microelements
- Ameliorative Effect of Potassium on Rice and Tomato Subjected to Sodium Salinization
- Differences in Short-Term Responses of Rice and Tomato to Sodium Salinization and Supplemental Potassium and Calcium (Plant Nutrition)
- Short-Term Response of Rice and Tomato to NaCl Stress in Relation to Ion Transport
- Importance of Na Content and Water Status for Growth in Na-Salinized Rice and Tomato Plants
- Short-Term Response of Rice and Tomato to NaCl Stress in Relation to Ion Transport (Plant Nutrition)
- 11-14 Mineral composition of different plant species as affected by salinity (Cl or SO4) and Nitrogen fertilization
- STUDIES ON RESPONSES OF PLANTS GROWN ON SAND DUNE SOIL TO A NUTRIENT SOLUTION APPLIED BY DRIP IRRIGATION : II. Effect of Dynamics of Nutrients in the Soil on Nutrient Uptake by Lettuce
- Adaptive strategy of six native herbaceous species growing over the whole region of Mt. Daisen : characteristics of N, P, K, Ca, and Mg accumulation in leaves(Plant nutrition)
- Comparison of ionic concentration, organic solute accumulation and osmotic adaptation in Kentucky bluegrass and Tall fescue under NaCl stress(Plant nutrition)