Controlled deterioration and accelerated aging tests to estimate the relative storage potential of cucurbit seed lots
Controlled deterioration and accelerated aging tests to estimate the relative storage potential of cucurbit seed lots
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DOI：
10.21273/hortsci.43.5.1544
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发表时间：
2008-08-01
期刊：
影响因子：
1.9
通讯作者：
Mavi, Kazim
中科院分区：
文献类型：
--
作者：
Demir, Ibrahim;Mavi, Kazim
实验室发芽（胚根出现）的百分比9西瓜，12甜瓜，和7黄瓜种子批次进行了测试后，在相对不利的存储条件下，25摄氏度和12%me为6，12和18个月的密封铝箔包。在45 ℃、20%或24%含水量（me）下控制变质（CD）48、72、96、120和144 h后，测定批次的实验室发芽（胚根出现）。加速老化试验（AA）在45 ℃下进行相同的老化时间。西瓜和黄瓜的一些种子批分别在12个月和18个月时死亡。各种组合的测试方案被发现与实验室发芽后6个月的存储，但AA测试的最一致的方案是96小时，在45摄氏度的所有物种（r = 0.71至0.98）。在CD测试中，在45 ℃下用20%me 72 h给出了最佳相关性（r = 0.86至0.96）。这些条件下的最高相关性，观察实验室发芽后6个月的存储和建议作为良好的预测葫芦种子批次的存储寿命。贮藏前的初始标准发芽率与种子寿命也呈显著相关，但相关系数普遍低于AA和CD试验结果（r = 0.60 ~ 0.83），且批间分离不明显。
The laboratory germination (radicle emergence) percentages of 9 watermelon, 12 melon, and 7 cucumber seed lots were tested after storing in relatively adverse storage conditions of 25 degrees C and 12% me for 6, 12, and 18 months in sealed aluminum foil packets. The laboratory germination (radicle emergence) of lots was determined after controlled deterioration (CD) at 45 degrees C with 20% or 24% moisture content (me) for 48, 72, 96,120, and 144 h. The accelerated aging test (AA) was conducted at 45 degrees C for the same aging periods. A number of seed lots was dead by 12 and 18 months in watermelon and cucumber, respectively. Various combinations of test regimens were found to be correlated with laboratory germination after 6 months storage, but the most consistent regimens for AA tests was 96 h at 45 degrees C in all species (r = 0.71 to 0.98). In the CD tests, 72 h with 20% me at 45 degrees C gave the best correlation (r = 0.86 to 0.96). These conditions of highest correlation were observed after laboratory germination after 6 months storage and are suggested as good predictors of storage life in cucurbit seed lots. The initial standard germination before storage was also significantly correlated with seed longevity, but the correlation coefficient was generally lower (r = 0.60 to 0.83) than the AA and CD test results and separation of lots less clear.