中野假单胞菌的萌发特性及幼苗生长。种子按轻质类型分类

Hyuck Hwan Kwon, Hye Jin Oh, Wonwoo Cho
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摘要

背景与目的:本研究旨在了解不同品质的发光二极管(LED)对nakaianum</i> Pseudolysimachion nakaianum</i>萌发特性和生长的影响。方法:将LED光照射分为白光、红光、蓝光和红蓝比1:1。为了研究萌发特性,将30粒种子分3个重复置于培养皿中,培养8 d。测定平均发芽率、发芽速度、发芽均匀度和平均发芽时间。为考察幼苗的生长情况,播种后6周检测植株高、株宽、叶长、叶宽、叶数、鲜重、干重和T/R比,并测定叶绿素荧光(最大量子产率、电子传递率)。结果:红蓝(1:1)LED照射下,最终发芽率和萌发速度最高。在生长和叶绿素荧光测量方面,红蓝LED的生长效果最好,不同光质类型的Fv/Fm没有显著差异,红蓝LED照射下的电子传递率最高。此外,红蓝LED的总鲜干重和T/R比最高,可以推测其促进了整个植株的生物量。结论:研究结果证明:中川假溶菌;结果显示,红色LED条件有利于种子萌发,而红蓝LED条件下的培养则更适合幼苗生长和光合作用。
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Germination Characteristics and Seedling Growth of Pseudolysimachion nakaianum (Ohwi) T. Yamaz. Seeds According to Light Quality Type
Background and objective: This study was conducted to understand the effect of different quality of light-emitting diodes (LED) on the germination characteristics and growth of Pseudolysimachion nakaianum.Methods: The LED light irradiation was divided into white, red, blue, and red:blue (1:1). To investigate the germination characteristics, 30 seeds were placed in a Petri dish in three replicates for 8 days. Average germination rate, germination speed, germination uniformity, and average germination time were measured. To investigate the growth of seedlings, plant height, plant width, leaf length, leaf width, leaf number, fresh weight, dry weight and T/R ratio were examined 6 weeks after sowing, and chlorophyll fluorescence (maximum quantum yield, electron transport rate) was measured.Results: The final germination rate and germination speed were highest at red:blue (1:1) LED irradiation. Regarding growth and chlorophyll fluorescence measurements, red:blue LED showed the best growth results, with no significant difference in Fv/Fm between different types of light quality, and the electron transport rate was the highest under red:blue LED irradiation. Also, total fresh/dry weight and T/R ratio were highest for red:blue LED, it is presumed to promote the biomass of entire plant.Conclusion: The results proved that Pseudolysimachion nakaianum showed red LED conditions promoted germination, but cultivation under red:blue LED conditions is judged to be suitable for seedling growth and photosynthesis.
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来源期刊
Journal of People, Plants, and Environment
Journal of People, Plants, and Environment Social Sciences-Urban Studies
CiteScore
1.10
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0.00%
发文量
42
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