贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2010年
1期
32-34
,共3页
增产胺(DCPTA)%玉米%浸种%生长效应
增產胺(DCPTA)%玉米%浸種%生長效應
증산알(DCPTA)%옥미%침충%생장효응
DCPTA%maize%seed soaking%growth effect
为探讨不同浓度的DCPTA浸种处理对玉米幼苗生长的影响,研究了增产胺(DCPTA)对玉米种子发芽成苗及其生物量的影响.结果表明:DCPTA浸种处理能显著增加玉米幼苗的高度,使2叶期幼苗的株高增加了7.41%～40.10%,使根冠比、地下部分干重增加,增长率分别达到13.36%～29.77%和2.47 %～113.58%.玉米幼苗叶片叶绿素总含量、叶绿素a、叶绿素b在0.67 mL/L,0.4 mL/L,0.29 mL/L浓度下低于对照,2 mL/L浓度下高于对照;发芽种子呼吸速率在0.67 mL/L,0.4 mL/L,0.29 mL/L浓度下高于对照,2 mL/L浓度下低于对照;玉米幼苗丙二醛含量在0.67 mL/L,0.4 mL/L,0.29 mL/L浓度下高于对照,2 mL/L浓度下低于对照.
為探討不同濃度的DCPTA浸種處理對玉米幼苗生長的影響,研究瞭增產胺(DCPTA)對玉米種子髮芽成苗及其生物量的影響.結果錶明:DCPTA浸種處理能顯著增加玉米幼苗的高度,使2葉期幼苗的株高增加瞭7.41%～40.10%,使根冠比、地下部分榦重增加,增長率分彆達到13.36%～29.77%和2.47 %～113.58%.玉米幼苗葉片葉綠素總含量、葉綠素a、葉綠素b在0.67 mL/L,0.4 mL/L,0.29 mL/L濃度下低于對照,2 mL/L濃度下高于對照;髮芽種子呼吸速率在0.67 mL/L,0.4 mL/L,0.29 mL/L濃度下高于對照,2 mL/L濃度下低于對照;玉米幼苗丙二醛含量在0.67 mL/L,0.4 mL/L,0.29 mL/L濃度下高于對照,2 mL/L濃度下低于對照.
위탐토불동농도적DCPTA침충처리대옥미유묘생장적영향,연구료증산알(DCPTA)대옥미충자발아성묘급기생물량적영향.결과표명:DCPTA침충처리능현저증가옥미유묘적고도,사2협기유묘적주고증가료7.41%～40.10%,사근관비、지하부분간중증가,증장솔분별체도13.36%～29.77%화2.47 %～113.58%.옥미유묘협편협록소총함량、협록소a、협록소b재0.67 mL/L,0.4 mL/L,0.29 mL/L농도하저우대조,2 mL/L농도하고우대조;발아충자호흡속솔재0.67 mL/L,0.4 mL/L,0.29 mL/L농도하고우대조,2 mL/L농도하저우대조;옥미유묘병이철함량재0.67 mL/L,0.4 mL/L,0.29 mL/L농도하고우대조,2 mL/L농도하저우대조.
Maize seeds were soaked by different concentration DCPTA to study the effects on their germination, seedling growth and biomass. The results showed that the maize seedling height, crown/root ratio and aerial dry weight of maize seedlings from their seeds treated by DCPTA was 7.41%～40.10%,13.36%～29.77% and 2.47%～113.58% higher than CK respectively, the total chlorophyll, chlorophyll a and chlorophyll b content of seedlings treated by 0.67 mL/L,0.4 mL/L and 0.29 mL/L DCPTA was lower than CK but the total chlorophyll, chlorophyll a and chlorophyll b content of seedling treated by 2 mL/L DCPTA was higher than CK, the respiratory rate of germinating seeds treated 0.67 mL/L,0.4 mL/L and 0.29 mL/L DCPTA was higher than CK but the respiratory rate of germinated seeds treated by 2 mL/L DCPTA was lower than CK, and the MDA content of seedlings treated by 0.67 mL/L,0.4 mL/L and 0.29 mL/L DCPTA was higher than CK but the MDA content of seedlings treated by 2 mL/L DCPTA was lower than CK.
