SUN Shi-chen,LUO Yu,et al.Effect of Cold Water Irrigating in Growth Duration on Agronomic Traits of Rice in Cold Region[J].HEILONGJIANG AGRICULTURAL SCIENCES,2007,(04):14-16.[doi:10.11942/j.issn1002-2767.2007.04.0014]
生育期冷水灌溉对寒地水稻主要农艺性状的影响
- Title:
- Effect of Cold Water Irrigating in Growth Duration on Agronomic Traits of Rice in Cold Region
- 文章编号:
- 1002 -2767(2007)04-0014 -03
- Keywords:
- rice ; co ld tolerance ; ag ronomic traits
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 应用75 个水稻品种(系), 研究了生育期冷水灌溉对寒地水稻主要农艺性状的影响。结果表明, 在主要农艺性状中, 结实率的冷水反应指数(CRI)值相对较小, 受低温冷害程度较大, 穗粒数和秆长的CRI 值相对较大, 低温冷害对其影响较小;相关分析表明:穗颈长和结实率的CRI 值与秆长的C RI 值均呈极显著正相关, 穗长的CRI 值与秆长的CRI 值呈显著正相关;穗颈长的CRI 值与结实率的 CRI 值呈极显著正相关;穗粒数的CRI 值与穗长的CRI 值呈显著正相关。
- Abstract:
- 75 varieties o r lines wer e studied on effect of ir rig atio n in g row th dur atio n on some ag ronomic traits of rice in cold reg io n.The results showed tha t v alue o f cold w ater response index (CRI )o f seed se tting rate w as low , but CRI o f seed spike lets per panicle and CRI of culm le ng th wer e high.Cor rela ting analy sis indicated tha t CRI value o f culm leng th w as ve ry sig nificant po sitively cor related to that o f panicle neck leng th and seed setting r ate, and was significant po sitiv ely co rrelated to that of panicle leng th ;CRI v alue o f panicle neck leng th w as ver y significant po sitive ly cor related to tha t of seed setting rate ;CRI value of g rains per panicle w as sig nificant po sitively cor rela ted to that o f panicle leng th.
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备注/Memo
收稿日期:2007 -01 -31
第一作者简介:孙世臣(1979 -), 黑龙江省东宁县人, 男, 实研, 东北农业大学在读博士研究生, 主要从事水稻育种、栽培研究。E -m ail: s hichensu n @y ah oo.com.cn 。