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当前位置: 首页 > 文章 > 不同光质处理对樱桃番茄生长发育和叶绿素荧光的影响 福建农业学报 2019 (9) 1026-1031
Position: Home > Articles > Effects of LED Light on Growth and Chlorophyll Fluorescence of Cherry Tomatoes Fujian Journal of Agricultural Sciences 2019 (9) 1026-1031

不同光质处理对樱桃番茄生长发育和叶绿素荧光的影响

作  者：
樊小雪;杨亚娜;徐刚
单  位：
山西农业大学园艺学院;江苏省农业科学院蔬菜研究所
关键词：
樱桃番茄;LED光;质量;叶绿素荧光
摘  要：
【目的】探索红蓝LED光源在番茄设施栽培生产上的精准化应用,为番茄苗高品质栽培提供理论依据。【方法】以樱桃番茄千禧为材料,设置6个不同光处理:对照白光(CK)、红/蓝=1∶1(1R1B)、红/蓝=7∶3(7R3B)、红/蓝=3∶7(3R7B)、单红光(R)和单蓝光(B)。于3叶1心期开始进行光照处理,研究不同光处理30 d后对樱桃番茄生长的影响。测定不同光处理下番茄植株生长状态指标(干鲜重、壮苗指数、根冠比)、叶片光合色素含量、叶绿素荧光参数、过氧化物酶(POD)、超氧化物歧化酶(SOD)及丙二醛(MDA)含量变化。【结果】LED光处理下番茄植株鲜重均高于对照,其中7R3B最高,比对照增加了50.5%,其次为1R1B处理比对照增加了31.3%;番茄植株干重在1R1B下最高,比对照(1.11 g)增加了61.0%;壮苗指数在1R1B下数值最高,显著高于对照及其他处理。研究还发现3个红蓝组合光下的植株壮苗指数均高于对照,而两个单色光处理下的壮苗指数均低于对照。使用LED光照处理后,单色红光处理对番茄叶片中叶绿素含量有抑制作用,其他光处理下叶绿素a和叶绿素b的含量都有所上升。POD活性随着处理中红光比例的增加而提高,蓝光会降低POD活性;SOD活性在6个光处理下没有显著性差异;MOD活性在1R1B下数值最高,在红光下数值最低。【结论】红蓝1∶1组合光下植株生长健壮,番茄植株的干物质积累量大,光合效率较高,可以作为人工栽培光源的有效参数。
译  名：
Effects of LED Light on Growth and Chlorophyll Fluorescence of Cherry Tomatoes
作  者：
FAN Xiao-xue;YANG Ya-na;XU Gang;Institute of Vegetables, Jiangsu Academy of Agriculture Sciences;College of Horticulture, Shanxi Agricultural University;
关键词：
Cherry tomato;;LED;;quality;;chlorophyll fluorescence
摘  要：
【Objective】 Effects of exposure to red and/or blue LEDs in a cultivation facility on growth and photosynthesis of cherry tomato plants were studied.【Method】 Starting at 3-leaves-1-shoot stage, the Millennium Tomato seedlings were exposed to white light(CK), LEDred:blue=1∶1, LEDred:blue=7∶3, LEDred:blue=3∶7, red LED and blue LED for 30 days.During the treatment, changes on the dry and fresh weight gains, growth, and root/shoot ratio of the seedlings as well as the photosynthetic pigment contents, chlorophyll fluorescence parameters, peroxidase(POD) activity, superoxide dismutase(SOD)activity, and malondialdehyde(MDA) in the leaves were monitored.【Result】 The fresh weight of the tomato plants exposed to the LED treatments was higher than that of CK with the greatest effect found under 7 red∶3 blue, which was 50.5% higher than that of CK, and the second highest of 31.3% increase over CK under 1 red:1 blue. On a dry weight basis, however, the greatest increase of 61.0% over CK was observed under 1 red∶1 blue, which also rendered a significantly higher plant growth index than CK and the other treatments. Almost all the LED treatments increased the contents of chlorophyll a and chlorophyll b, except for red LED, which inhibited chlorophyll generation. POD became more active under increasing red exposure but less with increasing blue proportion when red and blue LEDs were combined for the treatment. No significant differences in the SOD activity of the plants exposed to different LED treatments was observed. The exposure to 1 red∶1 blue produced the most MDA in leaves while red LED the least.【Conclusion】 The 1 red∶1 blue LED combination yielded strong growth, high dry matter accumulation, and improved photosynthetic efficiency on the cherry tomato plants cultivated under a controlled environment as shown in the experimentation.

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