[1]程在全,宋令荣,陈利,等.滇中高原高产玉米群体光合作用及光能利用率的特点[J].南京农业大学学报,1994,17(4):1-6.[doi:10.7685/j.issn.1000-2030.1994.04.001]
 Cheng Zaiquan,Song Lingrong,Chen Li,et al.CHARACTERISTICS OF PHOTOSYNTHESIS AND PERCENTAGE OF SOLAR ENERGY UTILIZATION RATE OF HIGH-YIELDING MAIZE POPULATION IN MIDDLE YUNNAN PLATEAU[J].Journal of Nanjing Agricultural University,1994,17(4):1-6.[doi:10.7685/j.issn.1000-2030.1994.04.001]
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滇中高原高产玉米群体光合作用及光能利用率的特点()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
17卷
期数:
1994年4期
页码:
1-6
栏目:
出版日期:
1994-11-30

文章信息/Info

Title:
CHARACTERISTICS OF PHOTOSYNTHESIS AND PERCENTAGE OF SOLAR ENERGY UTILIZATION RATE OF HIGH-YIELDING MAIZE POPULATION IN MIDDLE YUNNAN PLATEAU
作者:
程在全宋令荣陈利王万超俞炳杲
云南省农科院生物技术研究所,云南省祥云县农牧局,南京农业大学
Author(s):
Cheng Zaiquan Song Lingrong Chen Li Wang Wanchao Yu Bingao
Biotechnology Institute, Yunnan Academy of Agric Sci, Kunming 650223; Agriculture Bureau of Xiangyun County, Yunnan Province; Naning Agric Univ
关键词:
玉米 叶面积指数 光合速率 滇中
Keywords:
maize leaf area index(LAI) photosynthetic rate Middle Yunnan
分类号:
S513.01
DOI:
10.7685/j.issn.1000-2030.1994.04.001
文献标志码:
A
摘要:
对云南祥云县玉米高产试验田的测定表明,玉米田间自然光照强度比内地高,即使在7月中旬阴雨天,高产群体内近地面的光强仍在光补偿点之上。种植密度为90000株/hm2,其群体最大叶面积指数为5.2,高值稳定期长达50~60d。光合速率以灌浆中期的最大,光合最大值比内地的略低;不同生长时期及同株各叶的光合速率变化范围小;抽雄和灌浆中期无光合作用“午睡”现象,光能利用率为2.66%,比常规栽培法的高1.2%.
Abstract:
The natural light intensity in Middle Yunnan was greater than that of some other rigions in China. Theobservation indicated thst the light intensity of near soil surface in high yielding community was still greater than lightcompensation Point during the cloudy and drizzly days in the rainy season. The maximum LAI of 90 000 plants/hm2community was 5. 2 and it could retain as long as 50 ̄60 days in succession. Among the whole growth stase,mid stags of grain filling had the maximum Photosynthetic rate 31. 3 μ mol CO2· m-2· s-1. The Percentage of solar ener gy utilization was 2. 66% which was higher than that of other regions of China.

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备注/Memo

备注/Memo:
国家八五攻关项目
更新日期/Last Update: 1994-11-30