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本文在温室中研究不同的土壤盐浓度和土壤水分对三种预萌发冷季禾草种子的出苗及根基生长的影响。在全部盐分和水分处理水平内,播种前进行预萌发的种子比未处理种子出苗迅速。在俄滨麦和伏生偃麦草中,未处理种子受盐分和水分胁迫影响而导致其出苗延缓或减少,但预荫发种子所受的影响就较小。三种预萌发禾草种子产生的根量较多。预荫发伏生偃麦草和沙生冰草的根系较长。在不利于萌发的条件下,用预萌发技术建植足可行的。
In this paper, we studied the effects of different soil salt concentrations and soil moisture on the emergence and root growth of three pre-germinated cold-season grasses in greenhouse. Within the full salinity and water treatment levels, seeds pre-germinated prior to sowing appeared to germinate more rapidly than untreated seeds. In the Russian Bin Mai and Volt thinopyrum, untreated seeds were delayed or reduced by salt and water stress, but the pre-shade seeds were less affected. Three kinds of pre-germinated seeds produced more seeds. The pre-shade voluminous thinning of Erostrome and sandy riparian grass longer roots. In the unfavorable germination conditions, the use of pre-germination techniques to build adequate.