种植密度对玉米产量和相关生理特性影响的研究

Journal of Tianjin Agricultural University ›› 2016, Vol. 23 ›› Issue (1): 18-22.

• Researches and Scientific Notes • Previous Articles Next Articles

Study on Effect of Plant Density on Related Photosynthetic Characteristics of Maize

HOU Yue, WANG Chong, WANG Peng-wen^{Corresponding Author}

College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China

Received:2015-05-21 Online:2016-03-20 Published:2019-10-14

Abstract

Abstract: ：In 2 500-8 500 plant per 667m², by using Zhengdan 958, the effect of plant density on related photosynthetic characteristics of maize was studied. The results indicated that: with the increasing of planting density, net photosynthetic rate, photosynthetic active radiation, transpiration rate and stomata conductance showed the decreased trend. The reduction of photosynthesis affect the yield per plant. With the increasing of planting density, leaf area per plant decreased. But with the increasing of planting density, groups leaf area index and photosynthetic intensity increased. The increasing of source improved the collective assimilation, improving maize yield. The yields of dengdan958 and plant density were quadratic curve relationship. When the plant density was 5 263 plant per 667m², the yield will achieve the highest yield. The highest yield is 521.8 kg. Therefore, in this study, the density threshold of Zhengdan 958 is 5 263 plant per 667m².

Key words: maize, plant density, yield, photosynthetic characteristics

CLC Number:

HOU Yue, WANG Chong, WANG Peng-wen. Study on Effect of Plant Density on Related Photosynthetic Characteristics of Maize[J]. Journal of Tianjin Agricultural University, 2016, 23(1): 18-22.

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Study on Effect of Plant Density on Related Photosynthetic Characteristics of Maize

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