| 狗牙根耐盐性材料初步筛选 |
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| 引用本文： | 周 霞,黄春琼,张绪元,刘国道.狗牙根耐盐性材料初步筛选[J].热带作物学报,2010,30(4):20-24. |
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| 作者姓名： | 周 霞 黄春琼 张绪元 刘国道 |
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| 作者单位： | 海南大学 海南儋州 571737;海南大学 海南儋州 571737;海南大学 海南儋州 571737;中国热带农业科学院热带作物品种资源研究所 海南儋州 571737 |
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| 摘 要： | 狗牙根(Cynodon dactylon)是暖季型草坪草中得分最高，应用最广泛的草种之一，具有耐盐碱，生长快、建坪迅速等优点。本试验采用荷格伦特营养液培养法，依次用20、26、31 g/L的NaCl营养液对403份狗牙根材料进行耐盐处理30 d，筛选出在26 g/L的NaCl溶液中存活的耐盐种质21份，再对这些耐盐种质进行不同盐质量分数梯度(20、22、25、28和30 g/L)复选，初步筛选出较耐盐种质11份，次耐盐种质10份，这些材料为培育耐盐狗牙根品系提供了优良亲本。
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| 关 键 词： | 狗牙根 NaCl质量分数 耐盐 筛选 |
Preliminary Screening of Bermuda Grass(Cynodon dactylon)for Salt-Tolerance |
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| Institution: | Hainan University, Danzhou, Hainan 571737;Hainan University, Danzhou, Hainan 571737;Hainan University, Danzhou, Hainan 571737;Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737 |
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| Abstract: | Bermuda grass (Cynodon dactylon) is one of the most widely used warm-season turf grasses with the highest score, salt resistance, fast growth, and the advantage of quick turf establishment. Through Hoagland's nutrient solution culture, 20, 26, 31 g/L of NaCl nutrient solution were used to treat 403 bermuda grass materials for salt tolerance for 30 d, and 21 survived salt-tolerant germplasms were selected in 26 g/L of NaCl solution. The resulting 21 salt-tolerant germplasms were screened again with different concentrations (20, 22, 25, 28 and 30 g/L) of NaCl solutions and 11 highly salt-tolerant, 10 salt-tolerant germplasms were obtained. These salt-tolerant germplasm materials can be used as excellent parents for bermuda grass improvement for salt tolerance. |
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| Keywords: | bermuda grass NaCl concentration salt-tolerant screening |
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