黑龙江大学工程学报
黑龍江大學工程學報
흑룡강대학공정학보
JOURNAL OF HEILONGJIANG HYDRAULIC ENGINEERING COLLEGE
2015年
2期
58-63
,共6页
赵慧杰%於丽华%孙学伟%刘治婷%刘慧%耿贵
趙慧傑%於麗華%孫學偉%劉治婷%劉慧%耿貴
조혜걸%어려화%손학위%류치정%류혜%경귀
甜菜%氯化钠胁迫%水势%含水量
甜菜%氯化鈉脅迫%水勢%含水量
첨채%록화납협박%수세%함수량
sugar beet%NaCl stress%water potential%water content
以甜菜S T 13092为供试品种,采用室内营养液水培的培养方式,研究了不同幼苗期盐胁迫下甜菜体内水分变化情况。研究结果表明:盐胁迫条件下,含水量、相对含水量及水势随着盐浓度的升高而降低。3对真叶期盐胁迫叶片含水量、叶柄含水量和水势都比子叶期的低。子叶期第一对叶片含水量对盐胁迫的敏感程度大于第二对叶片,而3对真叶期胁迫的第三对叶片含水量与第四对无明显差异;3对真叶期盐胁迫与子叶期的叶片饱和水分亏缺都是随盐浓度的升高而增大;三叶期盐胁迫于280 mmol/L浓度胁迫下3对真叶期比子叶期叶片水势下降幅度大;对于叶片相对含水量及水势,同一处理不同叶位没有明显差异。
以甜菜S T 13092為供試品種,採用室內營養液水培的培養方式,研究瞭不同幼苗期鹽脅迫下甜菜體內水分變化情況。研究結果錶明:鹽脅迫條件下,含水量、相對含水量及水勢隨著鹽濃度的升高而降低。3對真葉期鹽脅迫葉片含水量、葉柄含水量和水勢都比子葉期的低。子葉期第一對葉片含水量對鹽脅迫的敏感程度大于第二對葉片,而3對真葉期脅迫的第三對葉片含水量與第四對無明顯差異;3對真葉期鹽脅迫與子葉期的葉片飽和水分虧缺都是隨鹽濃度的升高而增大;三葉期鹽脅迫于280 mmol/L濃度脅迫下3對真葉期比子葉期葉片水勢下降幅度大;對于葉片相對含水量及水勢,同一處理不同葉位沒有明顯差異。
이첨채S T 13092위공시품충,채용실내영양액수배적배양방식,연구료불동유묘기염협박하첨채체내수분변화정황。연구결과표명:염협박조건하,함수량、상대함수량급수세수착염농도적승고이강저。3대진협기염협박협편함수량、협병함수량화수세도비자협기적저。자협기제일대협편함수량대염협박적민감정도대우제이대협편,이3대진협기협박적제삼대협편함수량여제사대무명현차이;3대진협기염협박여자협기적협편포화수분우결도시수염농도적승고이증대;삼협기염협박우280 mmol/L농도협박하3대진협기비자협기협편수세하강폭도대;대우협편상대함수량급수세,동일처리불동협위몰유명현차이。
Sugar beet ST13092 was cultivated in the hydroponic experiment to investigate the effects of the different NaCl concentrations on the moisture content of sugar beet seedlings . T he results show that :water content , leaf relative water content and water potential were decreased significant with the increase of NaCl concentration .Leaves water content ,petioles water content and water potential in the three pairs of true leaves stage under salt stress were lower than in the cotyledon stage . It was more seriously influence on the first pair of leaf water content than the second pair of leaf in the cotyledon stage under salt stress ,and the effect on leaf water content had no significant difference between different leaf positions in the three pairs of true leaves stage under the same treatment . Leaf water saturation deficits increased with the increase of the salt concentration in the cotyledon stage and the three pairs of true leaves stage . The water potential under the 280 mmol/L NaCl treatment in the three true leaf stages were decreased more serious than cotyledon stage . The effect on leaf relative water content and water potential had no significant difference between different leaf positions under the same treatment .