Maximum Storage Duration for Grafted Tomato Plug Seedlings under Red-LED Low Light Irradiation-CA Conditions
Maximum Storage Duration for Grafted Tomato Plug Seedlings under Red-LED Low Light Irradiation-CA Conditions
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红色 LED 低光照射-CA 条件下嫁接番茄穴盘苗的最长储存期
DOI：
10.2525/ecb1963.39.297
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
M. Iimoto
中科院分区：
文献类型：
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作者：
K. Fujiwara;S. Isobe;M. Iimoto
嫁接番茄（接穗：Lycopersicon esculentum Mill.）CV.桃太郎;砧木：cv. Helper M）穴盘苗在10°C下贮藏不同时间（7、14或21 d），在前期研究中确定的最佳CO2浓度和光合光子通量密度（PPFD）组合（0.25%CO2和1.9 μmol m-2 s-1 PPFD来自发光二极管的连续红光）下。将贮藏的幼苗移栽，在25°C和200 μmol m-2s-1 PPFD条件下光照16 h，在20°C条件下黑暗8 h，培养28 d。最大储存持续时间使用基于视觉质量评分、储存期间的地上和地下部分干重、茎长、茎直径、叶数、地上和地下部分干重、产生第一个花桁架所需的天数、第一个花桁架设置节点和储存后培养期间的第一个花桁架的花蕾数的严格标准来确定。结果表明，在0.25%CO2和1.9 μ molm-2s-1 PPFD的最佳组合下，10°C贮藏番茄嫁接穴盘苗的最长贮藏期为21 d，比10°C常规暗藏条件下的贮藏期延长3倍以上。
Grafted tomato (scion: Lycopersicon esculentum Mill. cv. Momotaro; rootstock: cv. Helper M) plug seedlings were stored at 10°C for different durations (7, 14 or 21 d) under the optimum combination of CO2 concentration and photosynthetic photon flux density (PPFD) determined in a previous study (0.25% CO2 and 1.9 μmol m-2 s-1 PPFD continuous red light from light emitting diodes) . The stored seedlings were transplanted and cultivated at 25°C and 200 μmol m-2 s-1 PPFD during the 16 h light period and at 20°C during the 8 h dark period for 28 d. The maximum storage duration was determined using strict criteria based on visual quality scores, aerial- and subterranean-part dry weights during storage, stem length, stem diameter, leaf number, aerial- and subterranean-part dry weights, required days to produce the first flower truss, first flower truss setting node and flower-bud number of the first flower truss during cultivation following storage. The results indicate that the maximum storage duration of grafted tomato plug seedlings stored at 10°C under the optimum combination of 0.25% CO2 and 1.9 μmol m-2 s-1 PPFD was 21 d, and that the duration was at least three times longer than the duration for the seedlings stored at 10°C under conventional dark storage conditions.