浙江农业学报
浙江農業學報
절강농업학보
ACTA AGRICULTURAE ZHEJIANGENSIS
2014年
3期
609-614
,共6页
萘乙酸%董棕%生理指标%耐寒性
萘乙痠%董棕%生理指標%耐寒性
내을산%동종%생리지표%내한성
NAA%Caryota obtusa seedling%physiological index%cold tolerance
为了研究不同浓度萘乙酸(NAA)溶液对董棕(Caryota obtusa)幼苗耐寒性的影响,分别用0,25,50和100 mg· L-14种浓度的NAA溶液喷施董棕叶片,并分别经过25℃-5℃-25℃各24 h变温冷胁迫处理后,研究董棕叶片在变温冷胁迫过程中超氧化物歧化酶( SOD)、过氧化物酶( POD)、丙二醛( MDA)、脯氨酸、可溶性蛋白和叶绿素含量等生理指标的变化规律,并对25℃恢复24 h后的董棕幼苗上述耐寒性指标进行模糊隶属函数综合评价,结果表明:4种浓度下隶属函数值分别为0.39,0.30,0.39和0.51,其中喷施100 mg· L-1的NAA溶液对提高董棕的耐寒性效果最好。
為瞭研究不同濃度萘乙痠(NAA)溶液對董棕(Caryota obtusa)幼苗耐寒性的影響,分彆用0,25,50和100 mg· L-14種濃度的NAA溶液噴施董棕葉片,併分彆經過25℃-5℃-25℃各24 h變溫冷脅迫處理後,研究董棕葉片在變溫冷脅迫過程中超氧化物歧化酶( SOD)、過氧化物酶( POD)、丙二醛( MDA)、脯氨痠、可溶性蛋白和葉綠素含量等生理指標的變化規律,併對25℃恢複24 h後的董棕幼苗上述耐寒性指標進行模糊隸屬函數綜閤評價,結果錶明:4種濃度下隸屬函數值分彆為0.39,0.30,0.39和0.51,其中噴施100 mg· L-1的NAA溶液對提高董棕的耐寒性效果最好。
위료연구불동농도내을산(NAA)용액대동종(Caryota obtusa)유묘내한성적영향,분별용0,25,50화100 mg· L-14충농도적NAA용액분시동종협편,병분별경과25℃-5℃-25℃각24 h변온랭협박처리후,연구동종협편재변온랭협박과정중초양화물기화매( SOD)、과양화물매( POD)、병이철( MDA)、포안산、가용성단백화협록소함량등생리지표적변화규률,병대25℃회복24 h후적동종유묘상술내한성지표진행모호대속함수종합평개,결과표명:4충농도하대속함수치분별위0.39,0.30,0.39화0.51,기중분시100 mg· L-1적NAA용액대제고동종적내한성효과최호。
The effects of naphthalene acetic acid ( NAA ) on the cold tolerance of Caryota obtusa seedlings were conducted by several physiological indexes , The leaves of C.obtusa were sprayed with 0, 25, 50 and 100 mg· L-1 NAA solutions , the activities of superoxide dismutase ( SOD ) , peroxidase ( POD ) , and the contents of malondialdehyde (MDA), proline, soluble protein and chlorophyll of C.obtusa were determined under 25℃, 5℃and 25℃.It was indicated that all the above physiological indexes varied with different concentrations of NAA . Subordinate function values for different concentrations of NAA at 25℃ were 0.39 , 0.30 , 0.39 and 0.51 , respectively .It was concluded that leaves sprayed with different concentrations of NAA could affect the cold tolerance of C.obtusa seedlings and the optimal concentration was 100 mg· L-1 .