Abstract:
The seedling emergence of 16 commercial seed lots (7 in 2005
and 9 in 2006) of cucumber (Cucumis sativus L.) were compared at low
temperature (LTE), mechanical stress (MSE, 8 cm sowing) and salt stress (SSE,
200 mM NaCl) plantings. The emergence percentage ranged between 29-76% for LTE,
46-86%, for MSE and 59-92% in 2005 and 35-86% at LTE, 28-83% at MSE, 54-93%
at SSE in 2006. The radicle emergence of the lots was determined after Controlled
Deterioration (CD) at 45°C with 20 or 24% moisture content for 48, 72,
96, 120, 144 h. The accelerated ageing test was also conducted at the same temperature
and durations in both years. Germination after large number of combinations
of CD and AA was (p<0.05) correlated with LTE, MSE and SSE. Initial laboratory
germination was significantly (p<0.05) related to LTE, MSE and SSE in 2005
but not in 2006 (p>0.05). The optimum CD conditions of 48 h and 20% mc at
45°C and AA conditions of 96 h at 45°C are suggested as a successful
vigour test conditions for cucumber seeds.
Ibrahim Demir and Kazim Mavi, 2008. Seed Vigour Evaluation of Cucumber (Cucumis sativus L.) Seeds in Relation to Seedling Emergence. Research Journal of Seed Science, 1: 19-25.
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