黑龙江农业科学Issue(8)：31-34,4.DOI:10.11942/j.issn1002-2767.2015.08.0031
分蘖期水分胁迫对寒地粳稻农艺性状及产量的影响
Effect of Water Stress at Tillering Stage on Rice Agronomic Traits and Yield in Cold Region
摘要
Abstract
In order to investigate the mechanism of water stress at tillering stage on rice yield ,taking cold region rice variety cultivated rice Kendao 12 as material ,through a pot of soil moisture artificially controlled manner , the effect of water stress at tillering stage on rice agronomic traits and yield was studied .The results showed that controlled water stress at tillering stage ,panicle per plant ,panicle length ,spikelet per panicle ,seed setting rate ,1 000‐seed weight and yield per plant were lower than CK ;By correlation analysis on agronomic traits and yield of rice ,normal irrigation and water stress conditions in both of environments panicle per plant and panicle length and seed setting rate and yield were highly significant or significant positive correlation (r=0 .745 6* * , r=0 .810 6* * ;r=0 .595 2* ,r=0 .745 3* * ;r=0 .689 8* * ,r= 0 .585 1* );Under normal irrigation condi‐tions the main agronomic traits affected yield was the number of effective panicles and seed setting rate ,under the conditions of water stress ,the main agronomic traits affected yield was the number of effective panicles and panicle leng th .关键词
寒地/水稻/分蘖期/水分胁迫/农艺性状/产量Key words
cold region/rice/tillering stage/water stress/agronomic traits/yield分类
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胡继芳,刘传增,马波,谭可菲,王秋菊,赵富阳,王宇先..分蘖期水分胁迫对寒地粳稻农艺性状及产量的影响[J].黑龙江农业科学,2015,(8):31-34,4.基金项目
黑龙江省省长基金资助项目（2009HSJ-A-2）；哈尔滨市创新工程资助项目 （）
