WANG Li-zhi,WANG Lian-min,WANG Chun-yan,et al.Gray Correlation Analysis of Rice Heading in Cold Region[J].HEILONGJIANG AGRICULTURAL SCIENCES,2004,(05):21-22.[doi:10.11942/j.issn1002-2767.2004.05.0021]
寒地水稻抽穗期的灰色关联分析
- Title:
- Gray Correlation Analysis of Rice Heading in Cold Region
- 文章编号:
- 1002 -2767(2004)05 -0021 -02
- Keywords:
- rice ; heading stage ; g ray correlation analysis ; earlier-heading .
- 分类号:
- S511 ;O212.1
- 文献标志码:
- A
- 摘要:
- 对寒地水稻抽穗期的灰色关联分析表明, 对寒地水稻抽穗期影响较大的因素依次是移栽后第2 周积温、秧苗期积温、移栽时秧龄和移栽期等, 而移栽后第7 周积温、主茎叶片数、播种期和移栽后第1 周积温等对抽穗期的影响较小。
- Abstract:
- The g ray co rrelation analy sis of rice heading in cold region w as studied , the result showthat :the factors affecting rice heading in cold region were in turn-the accumulated temperature of thesecond week af ter transplanting , the accumulated temperature of seedling period , the age and the dateof transplanted seedling .some factors in including the accumulated temperature af ter six weeks oftransplanting , the leaves of the main stem , the sow ing date and the accumulated temperature of thefirst w eek af ter t ransplanting , have litt le effect on rice heading in cold region .
参考文献/References:
[ 1]王立志.灰色关联分析在低平易涝地水稻栽培上的应用[ J] .黑龙江农业科学, 1998, (5):38-39.
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备注/Memo
收稿日期:2003 -05 -16