[1]景茂,曹福亮*,汪贵斌,等.土壤7J~分含量对银杏光合特性的影响[J].南京林业大学学报(自然科学版),2005,29(04):083-86.[doi:10.3969/j.jssn.1000-2006.2005.04.020]
 JING MAO,CAO Fu-liang*,WANGGui-bin,et al.The Effects of Soil Water Contents on Photosynthetic Characteristics of Ginkgo[J].Journal of Nanjing Forestry University(Natural Science Edition),2005,29(04):083-86.[doi:10.3969/j.jssn.1000-2006.2005.04.020]
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土壤7J~分含量对银杏光合特性的影响
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
29
期数:
2005年04期
页码:
083-86
栏目:
研究论文
出版日期:
2005-04-20

文章信息/Info

Title:
The Effects of Soil Water Contents on Photosynthetic Characteristics of Ginkgo
文章编号:
1000-2006(2005)04-0083-04
作者:
景茂曹福亮*汪贵斌郝明灼
南京林业大学森林资源与环境学院, 江苏 南京 210037
Author(s):
JING MAO CAO Fu-liang* WANGGui-bin HAO Ming-zhuo
College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037, China
关键词:
银杏 水分胁迫 光合特性
Keywords:
Ginkgo Water stress Photosynthetic characteristics
分类号:
S718
DOI:
10.3969/j.jssn.1000-2006.2005.04.020
文献标志码:
A
摘要:
<正>以阳山油栗等6个板栗品种为父本,对农大1号板栗(Castanea mollissima B1. cv. Nongdayihao)授粉品种的花期相遇情况、花粉量、座果率和花粉直感现象等进行了研究。结果表明:阳山油栗雄花盛花期与农大1号板栗雌花相遇期为4d,铁粒头为3d,双季栗、河源油栗和韶栗18号都为2d;雄花长度及重量、花粉量的大小依次为:阳山油栗,铁粒头,双季栗,农大1号;以铁粒头作为授粉树的农大1号结实率最高,以双季栗为授粉树的次之。花粉直感现象对坚果单粒重存在一定影响。综合各种性状认为,铁粒头、韶栗18号和河源油栗是农大1号板栗的优良授粉品种。
Abstract:
One year old seedlings of Ginkgo (Ginkgo biloba L.) were grown in a pot under greenhouse conditions with varying soil water levels to determine photosynthetic characteristics. There were 16 different treatments, including 4 water levels (80%, 60%, 40% and 20~//00 of field capacity) and 4 varieties of Ginkgo, and the time of treatment was 100 days. The results were as follows: (1) There was little variation in the net photosynthetic rate, stomatal conductance,intercellular CO2 concentration, transpiration rate and Fv/Fm at the water condition of 80% and 60% of field capacity, but the 5 indexes decreased obviously at the water condition of 40% and 20% of field capacity; (2) The correlation coefficients between 5 indexes were all high, and the correlation coefficients between net photosynthetic rate and intercellular CO2 concentration was 0. 951, and the correlation coefficients between Fv/Fm and net photosynthetic rate was 0. 912; (3)The decreasing of net photosynthetic rate of Ginkgo under water stress was caused by stomatal limitation, and the electronic transmitting and COz assimilating also were restrained under water stress.

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更新日期/Last Update: 2013-05-20