摘要
以150 g/L的PEG-6000溶液为渗透介质,采用渗透胁迫的方法研究水分胁迫对黑龙江省水稻品种芽期形态指标的影响。研究结果表明:水分胁迫降低了水稻的发芽势、发芽率、芽长、根长、根数、芽干质量,根干质量和芽鞘长不同品种表现不一致,东农425、哈04-29、龙粳21抗旱性较强,水稻芽长、根长、芽干质量、发芽率、芽鞘长可以作为评定水稻芽期抗旱性的主要指标。
150 g/L PEG - 6000 was used to induce water stress, and the effect of water stress on morphological indicators at germinating stage of rice in HeiLongJiang Province was studied. The results showed that the germination power, germination rate, seedling length, root length, root number, dry seedling weight of rice decreased under water stress, the dry root weight and coleoptile length showed inconsistent performance in different varieties, Dongnong425, Ha04 -29, Longjing21 had strong drought resistance. The seedling length, root lengt, dry seedling weight, germination rate, coleoptile length could be used as the main indicators of access of drougth resistance at the germinating stage of rice.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2012年第4期641-645,共5页
Acta Agriculturae Universitatis Jiangxiensis
基金
黑龙江省省长基金(2009HSJ-A-2)
哈尔滨市创新工程(2010RFQYN112)
关键词
水稻
芽期
形态指标
抗旱性
rice
germination stage
morphological indicators
drought resistance
