欧亚国际

较近，国外科学家利用VideometerLab 多光谱成像系统发表了题为Seed germination and seedling growth parameters in nine tall fescue varieties under salinity stress的文章，发表在Acta Agriculturae Scandinavica, Section B —Soil & Plant Science上，文章对VideometerLab的描述如下：From each variety, 4 × 25 seeds were characterised for physical parameters (area, seed length and diameter) using a VideometerLab instrument (Videometer A/S, Hørsholm, Denmark).Information from multispectral images captured at 19 difffferent wavelengths from visible light to the near-infrared region (375–970 nm) were used to determine length, diameter and area of each individual seed.

北京欧亚国际科技有限公司是丹麦Videometer公司中国区总代理，全面负责其系列产品在中国市场的推广、销售和售后服务。

Seed germination and seedling growth parameters in nine tall fescue varieties under salinity stress

Seyede Roghie Ghadirnezhad Shiade & Birte Boelt

Department of Agroecology, Technical Sciences, Aarhus University, Aarhus, Denmark

ABSTRACT

To assess seed germination parameters and identifying tolerant varieties, seeds of nine tall fescue varieties (Festuca arundinacea Schreb.) were germinated under various salinity levels for 14 days. Tall fescue is considered moderately tolerant to salinity stress, but our study revealed a remarkable diversity among the tested varieties. Armani, Essential, Fatcat, and Starlett were found to reach the same fifinal germination (>90%), irrespective of NaCl concentration up to 15 ds m−NaCl; Asterix and Meandre expressed lower germination under the highest salinity level (>75%); and fifinal germination decreased in Eyecandy, Rhizing star, and Thomahawk gradually with increasing salinity (>55%).The main effffect of increasing salinity was a delay in germination, and our study suggests that the recording of fifinal germination, which is performed on day-14 in a standard germination test, should be postponed in order to understand the full effffect of salinity on germination potential. Nonetheless, a delay in germination will affffect turf quality negatively and hence there is good reason to test for salinity tolerance when choosing a variety for sowing on saline soil. Further, our findings indicate a future perspective for breeding for improved salinity tolerance in tall fescue by the identifification of salinity-tolerant breeding lines or varieties.