| 薛丽姗1，罗大庆1,2.大花黄牡丹物候观测及其主要气象因子关系分析[J].广东农业科学,2014,41(7):43-47 |
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大花黄牡丹物候观测及其主要气象因子关系分析 |
| Relationship analysis on phenological characteristics ofPaeonia ludlowii with its main meteorological factors |
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| DOI： |
| 中文关键词: 林芝 大花黄牡丹 物候期 气象因子 温度 |
| 英文关键词: Nyingchi Paeonia ludlowi phenophase meteorological factor temperature |
| 基金项目:国家科技支撑计划项目（2013BAC04B01） |
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| 中文摘要: |
| 以分布于西藏林芝地区的大花黄牡丹为研究对象，通过2012要2013 年连续两年对其萌芽期、展叶期、
开花期等主要物候期进行观测，结果表明；（1）3 月上旬（或中旬）鳞芽开始萌动，植株进入生长期；（2）3 月底（或4 月
初）花芽开始膨大，5 月上旬（或中旬）始花，5 月中（或下旬）进入开花盛期，随后进入果实生长期；（3）6 月中旬、下旬
至9 月中旬为果实成熟盛期，之后果实开始脱落。两年的观测发现，年际间物候期存在一定差异。各物候期与温度指
标具有显著相关性；萌动前的候平均气温在4.1益时可视为萌动期开始的温度指标；候平均气温在10益时进入开花
期，花期逸5益的有效积温不低于325益，开花期前的累计日照时数不少于470 h；幼果出现期的平均气温在15益以
上，果实成熟期的平均气温在17益以上，果实脱落期日平均气温为13益；11 月日平均温度低于6益时，大花黄牡丹进
入休眠期。 |
| 英文摘要: |
| Paeonia ludlowii distributed in Tibet Nyingchi area was taken as research object, and such main
phenophase as sprout period, leaf-expansion period, flowering period were observed from 2012 to 2013. The results showed
that: (1) The bulbil began germinating in mid March, and the plant got into growth period; (2) The buds began swelling at
the end of March to early April, the flowers opened in early or mid May, and the plant entered flowering peak in middle or
late May. Then the plant entered the fruit growing period. (3) Mid-late June to mid-September was the fruit maturity stage,
the fruit began to fall after that. We found that there were significant correlations between phenophase phase and
temperature index: pentad average temperature of 4.1could be regarded as the temperature index for the beginning of
germination period. The plant entered in flowering period when pentad average temperature was 10 , the effective
temperature exceeded 5 at flowering phase was not less than 325, the cumulative sunshine hours before flowering was
less than 470 h. The average temperature in young fruit period amd fruit maturity period were above 15 and 17,
respectively. And the average temperature in fruit abscission period was 13. When the average temperature was less than
6 in November, P. ludlowii wetn into dormancy. Key words: Nyingchi; Paeonia ludlowi; phenophase; meteorological factor; temperature |
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