干旱区生态环境知识资源中心(Arid): 四种暖季型草坪草对长期盐胁迫的生长反应

Arid

	四种暖季型草坪草对长期盐胁迫的生长反应
其他题名	Growth responses of four warm season turfgrasses to long-term salt stress
	陈静波; 阎君; 张婷婷; 刘建秀; 郭海林
ISSN	1004-5759
出版年	2008
卷号	17 期号:5 页码:30-36
中文摘要	通过盐水灌溉法，研究了长期盐胁迫对4种暖季型草坪草优良新品系沟叶结缕草Z123、结缕草Z080、狗牙根C291，和海雀稗P006生长的影响，以评价其抗盐性及对长期盐胁迫的适应性生长反应。结果表明，根据绿叶盖度和植株总于重，这4种草坪草的抗盐性依次为Z123〉P006〉C291〉Z080。长期的盐胁迫显著抑制了Z123，和Z080的叶重、枝条干重和枝条长度，而P006和C291在10～20g／L以上的盐度下才受显著抑制。Z123、C291，和P006可以分别在20，10和5g／L以内的盐度下维持稳定的枝条数量，而Z080在5g／L下显著降低。5～10g／L左右的低盐度对4种草坪草地下茎和根系生长的影响不显著，较高盐度下才受显著抑制，但P006，和C291在5g／L下具有更稳定的根系干重。长期盐胁迫不同程度地提高了4种草坪草的地下部分地上部分干重比，但抗盐越弱的草比值增加越快。不同草坪草的同一器官对盐胁迫的反应不一致，反应了其抗盐机制的差异。
英文摘要	The need for saline-tolerant turfgrasses is increasing because of the turfgrass establishment on highly saline soil in arid and seashore regions or the increased utilization of saline water for greenland irrigation. The salinity tolerance and the growth responses of four new selections of warm season turfgrasses （Zoysia matrella） Z123＇, Z. japonica Z080, Cynodondactylon C291＇, and Paspalum vaginatum P006） to long-term salt stress were evaluated. Based on green leaf coverage and total dry weight the salinity tolerance of these turfgrasses decreased in the order： Z123＇〉P006〉C291＇〉Z080. Leaf weight, dry shoot weight and shoot length of Z123＇ and Z080 were significantly decreased after long-term salt stress, while those of P006 and C291 were not affected until salinities were higher than 10-20 g/L. Z123,C291 and P006＇ maintained stable shoot numbers under 20, 10 and 5 g/L stress respectively. There was a significant decrease in Z080＇ at 5 g/L stress. Dry rhizome weights and dry root weights of the four turfgrasses were not significantly affected at low salinities （about 5-10 g/L）, however, dry root weight was more stable in C291 and P006 at 5 g/L. The ratios of underground biomass to aboveground biomass of the four turfgrasses all increased with increased salinities, a trend that was quicker in lower salinity tolerance turfgrass. The same organs of the four turfgrasses had different responses to salt stress and different mechanisms for salinity tolerance.
中文关键词	长期盐胁迫 ; 暖季型草坪草 ; 生长反应 ; 适应性
英文关键词	long-term salt stress warm season turfgrass growth response adaptation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3387189
来源机构	中国科学院植物研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222084
作者单位	江苏省中国科学院植物研究所, 南京, 江苏 210014, 中国
推荐引用方式 GB/T 7714	陈静波,阎君,张婷婷,等. 四种暖季型草坪草对长期盐胁迫的生长反应[J]. 中国科学院植物研究所,2008,17(5):30-36.
APA	陈静波,阎君,张婷婷,刘建秀,&郭海林.(2008).四种暖季型草坪草对长期盐胁迫的生长反应.,17(5),30-36.
MLA	陈静波,et al."四种暖季型草坪草对长期盐胁迫的生长反应".17.5(2008):30-36.