CAJ | 학술논문

为探讨除草剂对燕麦光合特性的影响,采用完全随机区组设计,测定4种除草剂48%仲丁灵、40%二甲.辛酰溴、72%2,4-D丁酯和75%苯磺隆处理下皮燕麦品种陇燕3号（Avena sativa cv.Longyan No.3）和裸燕麦品种燕2号（Baiyan No.2）的叶绿素相对含量（SPAD）值和净光合速率（Pn）、气孔导度（Gs）、胞间CO2浓度（Ci）及蒸腾速率（Tr）等光合指标。结果表明：4种除草剂均降低了皮、裸燕麦的SPAD、Pn、Gs、Tr和气孔限制值（Ls）;4种除草剂对皮、裸燕麦的影响不同,其中48%仲丁灵和40%二甲.辛酰溴对光合作用影响较小,72%2,4-D丁酯和75%苯磺隆危害较大;皮、裸燕麦间对除草剂的反应存在差异,皮燕麦对4种除草剂的敏感性大于裸燕麦。
위탐토제초제대연맥광합특성적영향,채용완전수궤구조설계,측정4충제초제48%중정령、40%이갑.신선추、72%2,4-D정지화75%분광륭처리하피연맥품충롱연3호（Avena sativa cv.Longyan No.3）화라연맥품충연2호（Baiyan No.2）적협록소상대함량（SPAD）치화정광합속솔（Pn）、기공도도（Gs）、포간CO2농도（Ci）급증등속솔（Tr）등광합지표。결과표명：4충제초제균강저료피、라연맥적SPAD、Pn、Gs、Tr화기공한제치（Ls）;4충제초제대피、라연맥적영향불동,기중48%중정령화40%이갑.신선추대광합작용영향교소,72%2,4-D정지화75%분광륭위해교대;피、라연맥간대제초제적반응존재차이,피연맥대4충제초제적민감성대우라연맥。
In order to determine the effect of four herbicides (48% Butralin,40% Bromoxynil octanoate plusMCPA-sodium, 72 % 2,4-D butylate and 75 % Tribenuron-methyl) on photosynthesis characteristics of oats, the indicators of chlorophyll content (SPAD), net photosynthetic rate(Pn), stomatal conductance(Gs), intercellular(;02 concentration(Ci)and transpiration rate(Tr)of both covered oat and naked oat were tested under the com- pletely randomized block. The results showed that all the herbicides reduced SPAD,Pn,Gs,Tr,and Ls of bothoats. However, the influence of four herbicides to oats were different, the octanoate plus MCPA-sodium had smaller negative impact on photosynthesi 48% Butralin and 40% Bromoxynil s,the 72% 2,4-D butylate and 75% Tribenuron-methyl had strong negative impact. Response of oats to herbicides was different,the covered oat was more sensitive than the naked one.