Standardization of seed hydro-priming duration in bitter gourd, Momordica charantia L.
Standardization of seed hydro-priming duration in bitter gourd, Momordica charantia L.
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DOI：
10.5958/j.0976-4038.5.1.019
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发表时间：
2014-01-01
期刊：
影响因子：
--
通讯作者：
Thakur, S.
中科院分区：
文献类型：
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作者：
Mehta, D. K.;Kanwar, H. S.;Thakur, S.
播种前进行种子引发有助于促进发芽和立地。然而，在对种子进行引发处理之前，确定引发处理持续时间的安全限度非常重要。因此，本研究旨在标准化苦瓜（Momordica charantia L.）的种子引发持续时间。将苦瓜品种 Solan Hara 的种子在 20°C 下在湿发芽纸之间进行不同持续时间的水浸处理，以未浸水的种子作为对照。处理后对种子进行称重以计算吸水量。将进一步的种子干燥回其原始水分含量并评估种子质量参数。平台期（第二阶段）含水量变化很小，从 53.3% 到 57.3%（种子引发 24 小时到 72 小时后）被认为是苦瓜的种子引发机制。与其他持续时间和对照相比，72小时的水引发中记录了显着更高的发芽速度、总发芽率、幼苗长度、幼苗干重、活力指数-I和II。根据种子引发制度，即种子发芽的第二阶段和种子质量参数的表现，发现 72 小时的种子引发对于苦瓜来说是最佳的。
Presowing seed priming helps to improve germination and stand establishment. However, before priming the seeds, it is important to establish the safe limits of priming durations. The present study was therefore carried out to standardize seed priming durations for bitter gourd (Momordica charantia L.). Seeds of bitter gourd cultivar Solan Hara were hydro-primed at 20°C between wet germination papers for different durations keeping unprimed seeds as control. Seeds were weighed after treatment to calculate amount of water imbibed. Further seeds were dried back to its original moisture content and evaluated for seed quality parameters. The plateau phase (Phase-II) with little change in water content from 53.3 to 57.3% (after 24 hours to 72 hours of seed priming) found as seed priming regime for bitter gourd. Significantly higher speed of germination, total% germination, seedling length, seedling dry weight, vigour index-I and II were recorded in hydro-priming for 72 hours as compared to other durations and control. Based on seed priming regime i.e. phase-II of seed germination and performance with respect to seed quality parameters it was found that 72 hours of seed priming is optimum in bitter gourd.