广东农业科学
廣東農業科學
엄동농업과학
GUANGDONG AGRICULTURAL SCIENCES
2010年
1期
18-20
,共3页
水稻%水杨酸%抗冷性
水稻%水楊痠%抗冷性
수도%수양산%항랭성
rice%salicylic acid%resistance to cold stress
以1.0、1.5、2.0、2.5、3.0、3.5 mmol/L水杨酸和蒸馏水处理一叶一心期的水稻幼苗,然后分别置于5℃和自然条件下生长,研究了水杨酸对水稻幼苗抗冷件的影响.结果表明:在5℃低温胁迫下,经1.5 mmol/L水杨酸处理的水稻幼苗的脯氨酸含量、叶绿素含量和SOD活性均高于仪用蒸馏水处理的埘照,而丙二醛含量则低于对照,表明一定浓度的水杨酸可增强水稻幼苗的抗冷性,但外源水杨酸处理对冷胁迫下水稻幼苗生长存在"低促高抑"的效应.
以1.0、1.5、2.0、2.5、3.0、3.5 mmol/L水楊痠和蒸餾水處理一葉一心期的水稻幼苗,然後分彆置于5℃和自然條件下生長,研究瞭水楊痠對水稻幼苗抗冷件的影響.結果錶明:在5℃低溫脅迫下,經1.5 mmol/L水楊痠處理的水稻幼苗的脯氨痠含量、葉綠素含量和SOD活性均高于儀用蒸餾水處理的塒照,而丙二醛含量則低于對照,錶明一定濃度的水楊痠可增彊水稻幼苗的抗冷性,但外源水楊痠處理對冷脅迫下水稻幼苗生長存在"低促高抑"的效應.
이1.0、1.5、2.0、2.5、3.0、3.5 mmol/L수양산화증류수처리일협일심기적수도유묘,연후분별치우5℃화자연조건하생장,연구료수양산대수도유묘항랭건적영향.결과표명:재5℃저온협박하,경1.5 mmol/L수양산처리적수도유묘적포안산함량、협록소함량화SOD활성균고우의용증류수처리적시조,이병이철함량칙저우대조,표명일정농도적수양산가증강수도유묘적항랭성,단외원수양산처리대랭협박하수도유묘생장존재"저촉고억"적효응.
The seedlings of rice at one leave stage were treated with 0, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5 mmol/L of salicylic acid (SA). The effects of salicylic acid on resistance of rice seedlings to cold stress were studied. The results showed that salicylic acid could enhance the resistance of rice to cold stress and the concentration of salicylic acid at 1.5 mmol/L showed the most effective. The salicylic acid increased the content of protine and chlorophyll as well as the activity of SOD, while the malodiadehyde content decreased in the leave of treated plants. However, the effects of salicylic acid on resistance to cold stress of rice seedlings showed the characters "low to promote and high to suppress ".