| 夏玉米超高产群体光合特性的研究 |
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| 引用本文： | 东先旺,刘树堂.夏玉米超高产群体光合特性的研究[J].华北农学报,1999,14(2):36-41. |
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| 作者姓名： | 东先旺 刘树堂 |
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| 作者单位： | 莱阳农学院农学系,山东莱阳,265200 |
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| 摘 要： | 对夏玉米中熟品种超高产群体光合特性的研究结果表明，超高产群体叶面积发展动态为花前块，花后稳，蜡熟期衰减缓；光合势总量适度，经济产量形成期的阶段光合势高；群体光合速度高而稳；群体呼吸占群体光合的比率较低；净同化率与群体叶面乘积高；总干物质各界量大，干物质生产率高，尤其生育后期干物质生产量大、生产率高是夏玉米超高产群体光合的重要特性之一。实现 玉米产量水平１３５００ｋｇ／ｈｍ＾２；适宜密度为７５００株
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| 关 键 词： | 夏玉米 超高产量 光合特性 |
A Study of Canopy Apparent Photosynthesis Property in Summer Maize with Superhigh Yield |
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| Dong Xianwang,Liu Shutang.A Study of Canopy Apparent Photosynthesis Property in Summer Maize with Superhigh Yield[J].Acta Agriculturae Boreali-Sinica,1999,14(2):36-41. |
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| Authors: | Dong Xianwang Liu Shutang |
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| Abstract: | The canopy apparent photosynthesis property in middleripe summer maize with supperhigh yield were reported.The results showed that the dovelopmental trends of canopy apparent leaf area of the maize was fast,steady and substractive respectively at postfloral,prefloral and dough stages;LAD was higher in the stage which economic yield shaping, but total LAD was appropriate;the canopy apparent photosynthesis rate was higher and steady. The ratio of canopy respiration was lower in the canopy photosynthesis;the higher dry matter productivety and multiplying canopy LAD by assimilation of total dry matter,especially,the higher dry matter production become at postgrowth stage and it was one of important property of canopy photosynthesis in summer maize with supperhigh yield. |
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| Keywords: | Summer maize Supperhigh yield Photosynthesis property |
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