Abstract:

This study, using orthogonal experimental design, collected Oenothera littaralis Schlectsfrom 12 different regions and studied the best germination conditions，in control of outdoor sowing. The results showed that: (1) germination percentage in sand sowing was the best during 12 regions. Matrix effected Oenothera littaralis Schlect. seeds germination remarkable in each region. (2)Temperature and substrate water content on the different regions effected Oenothera littaralis Schlect seeds emergence rate differently. At 30℃, 50% substrate moisture conditions, Xiamen Fengyezai area Oenothera littaralis Schlect seeds germination rate was 74%. At 10℃, 10% moisture content conditions, Huianshanxia and Tingli village in Zhangpuchihu town had highest germination rate, in which the Oenothera littaralis Schlect germination rate of Red Pavilion Village reached 70%; At 20℃, 30% substrate moisture conditions, Oenothera littaralis Schlect germination rate in 9 districts such as Changle city and Zhanggang town reached its peak value, of which the Lianjiang region Oenothera littaralis Schlect germination rate was 81%.