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標題: [討論] native climber VS invasive climber [打印本頁]

作者: even928    時間: 2007-2-18 00:13     標題: native climber VS invasive climber

Hi everyone,

have anyone seen fighting between Cuscuta sp. 菟絲子 or Cassytha sp.無根藤 with Mikania 薇甘菊 at any location in HK ?

Thanks

Steven


PS: there is evidence that Cuscuta sp. can reduce the growth of Mikania in China

[ 本帖最後由 Sze 於 2008-9-2 02:46 編輯 ]
作者: XJfanz    時間: 2007-2-18 00:27

幾年前我係大棠返工, 係d荒田見過菟絲子vs薇甘菊.. 上年係東涌又見到..

但菟絲子o既生長速度好似唔夠mikania快喎...

圖片: [東涌] aaPICT8904.jpg (2007-2-18 00:27, 210.72 K) / 該附件被下載次數 37
http://hkwildlife.net/Forum/attachment.php?aid=3128


作者: even928    時間: 2007-2-18 00:43

thx for ur pic and info.  

that article mentioned Cuscuta can reduce the total mass and inhibit flowering of Mikania (H Shen, W Ye, L Hong, H Cao, Z Wang - Journal of Experimental Botany, 2005)
but the impact of interaction always related to other environmental factors...
so a detail study might be needed to investigate the impact

[ 本帖最後由 even928 於 2007-2-18 00:46 編輯 ]
作者: XJfanz    時間: 2007-2-18 00:52

依我所見,菟絲子只可以有限地減弱薇甘菊生長, 要完全控制似乎並不可能.....
作者: even928    時間: 2007-2-18 01:12

in my opinion
Mikania is a real monster due to its extreme growth rate...
Ideally, if native parasitic plant can reduce the seed production of Mikania by inhibiting the flowering of Mikania, then other strategies can be applied to maximize the control of Mikania

Actually not many studies have been done on using native parasitic plant to control invasive weed, so there is no solid evidence on supporting this hypothesis, but I really hope a new strategy will be developed on control of those invasive weed
作者: even928    時間: 2007-2-18 01:18

and anyone knows the anything about Cassytha sp. in hk ?
as I am going to study about this parasitic plant in Aussie, so I want to know more about its status in hk too
作者: XJfanz    時間: 2007-2-18 01:19



QUOTE:
原帖由 even928 於 2007-2-18 01:12 發表
in my opinion
Mikania is a real monster due to its extreme growth rate...
Ideally, if native parasitic plant can reduce the seed production of Mikania by inhibiting the flowering of Mikania, then ...

hope you can get your job done.. hahaha.
作者: XJfanz    時間: 2007-2-18 01:38

話時話, 如果真係可以用菟絲子去控制mikania, 到時會唔會菟絲子失控呢??
是否菟絲子是比較容易控制呢???
作者: even928    時間: 2007-2-18 04:49

this is less likely to happen, becoz the parasitic plant is native to the environment
so there should be some species that can control its population
but....once again....due to lack of study....
there is no confirmed evidence yet...

PS: so preference of the parasitic plant is part of my study too (whether native parasitic plant prefer native or non-native plant species)
作者: XJfanz    時間: 2007-2-18 11:56

真係好好好好希望你o既研究成功, 因為d薇甘菊真係好煩....
作者: XJfanz    時間: 2007-2-21 17:34

今日去塱原, 你可以見到有好多菟絲子大戰薇甘菊, 如果有菟絲子, 薇甘菊好明顯處於下風, 但薇甘菊勝在人強馬壯, 人海戰之下, 薇甘菊整體勝利, 菟絲子一出現就贏...
作者: even928    時間: 2007-2-21 21:19

good news
thx for ur notice
作者: BWA    時間: 2007-2-21 22:36



QUOTE:
原帖由 XJfanz 於 2007-2-21 17:34 發表
今日去塱原, 你可以見到有好多菟絲子大戰薇甘菊, 如果有菟絲子, 薇甘菊好明顯處於下風, 但薇甘菊勝在人強馬壯, 人海戰之下, 薇甘菊整體勝利, 菟絲子一出現就贏... ...

不知菟絲子有何絕招可以打嬴薇甘菊呢?
作者: Peter.W    時間: 2007-2-21 23:16     標題: 回覆 #13 BWA 的帖子

一味靠黐, 黐飲黐食, 食窮薇甘菊
作者: even928    時間: 2007-2-22 00:01



QUOTE:
原帖由 Peter.W 於 2007-2-21 23:16 發表
一味靠黐, 黐飲黐食, 食窮薇甘菊

the best chinese description for parasitic plant I ever seen
作者: BWA    時間: 2007-2-22 00:08



QUOTE:
原帖由 Peter.W 於 2007-2-21 23:16 發表
一味靠黐, 黐飲黐食, 食窮薇甘菊

呵呵!原來對付外來入侵者都係要夠爛至得。
作者: Sze    時間: 2007-2-22 01:33



QUOTE:
原帖由 Peter.W 於 2007-2-21 23:16 發表
一味靠黐, 黐飲黐食, 食窮薇甘菊

果然係要以暴易暴呀!
作者: XJfanz    時間: 2007-2-22 05:15

菟絲子似乎可以大幅降低薇甘菊o既蔓延, 但並不能殺死薇甘菊, 另外菟絲子生長速度沒有薇甘菊快, 及菟絲子主要生於比較濕o既地方, 而山上o既薇甘菊,似乎菟絲子不能用了.. 不知無根藤可否係呢方面伸出援手呢??

[ 本帖最後由 XJfanz 於 2007-2-22 06:00 編輯 ]

圖片: [有菟絲子o既位就見到枯葉色] aPICT2787.jpg (2007-2-22 05:25, 163.19 K) / 該附件被下載次數 39
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圖片: [上方就係冇菟絲子, 薇甘菊大晒o既地方.] aPICT2791.jpg (2007-2-22 05:25, 218.6 K) / 該附件被下載次數 37
http://hkwildlife.net/Forum/attachment.php?aid=3258



圖片: [薇甘菊生長得比較差. 但不死] aPICT2792.jpg (2007-2-22 05:25, 122.61 K) / 該附件被下載次數 37
http://hkwildlife.net/Forum/attachment.php?aid=3259


作者: even928    時間: 2007-2-22 07:57

spectacular battle field !!!
time for native plants counter attack !!!
study showed Cassytha can reduce host photosynthesis capacity and growth
作者: Peter.W    時間: 2007-2-22 09:19     標題: 回覆 #17 Sze 的帖子



QUOTE:
原帖由 Sze 於 2007-2-22 01:33 AM 發表


果然係要以暴易暴呀!

都唔太算係以暴易暴嘅, 只不過食薇甘菊著薇甘菊咁啫
薇甘菊係以攀附方法借助其他植物取得陽光, 方便自己進行光合作用。被攀附嘅植物就因此而被薇甘菊濃密嘅葉片遮蔽, "無啖好食", 而致慢慢枯死。所以連出名生長迅速嘅鳳眼藍都會被佢鋪死。
菟絲子就有啲唔同, 佢葉都唔生, 光合作用都懶得做, 只需要吸食寄主營養就可以。所以薇甘菊都唔係咁容易可以鋪死佢。
作者: Cecily    時間: 2007-2-23 00:31



QUOTE:
原帖由 even928 於 2007-2-18 01:18 發表
and anyone knows the anything about Cassytha sp. in hk ?
as I am going to study about this parasitic plant in Aussie, so I want to know more about its status in hk too

We only have one species - Cassytha filiformis - in HK, Lauraceae, parasitic plant, quite common. It is also a Traditional Chinese Medicine.

Cecily
作者: even928    時間: 2007-2-28 23:06



QUOTE:
原帖由 Cecily 於 2007-2-23 00:31 發表


We only have one species - Cassytha filiformis - in HK, Lauraceae, parasitic plant, quite common. It is also a Traditional Chinese Medicine.

Cecily

thx Cecily
I found this in the HK Herbarium website too
and one more question
is it common in all type of habitat or any particular type ?
作者: XJfanz    時間: 2007-4-16 22:29

呢次係川龍...


作者: even928    時間: 2007-4-17 09:15

I want to go there to have a look....
but would u mind to tell me where is 川龍 and how to get there?

many thanks

QUOTE:
原帖由 XJfanz 於 2007-4-16 22:29 發表
呢次係川龍...



作者: XJfanz    時間: 2007-4-17 20:11

It is very localized... don't expect a large area battlefield. you can get the minibus as shown on the map below. you can find the battlefield along the dotted line near the circled area.  Very small battlefield indeed...

圖片: tlmb.GIF (2007-4-17 20:11, 79.07 K) / 該附件被下載次數 37
http://hkwildlife.net/Forum/attachment.php?aid=4883



圖片: tl2.GIF (2007-4-17 20:11, 50.03 K) / 該附件被下載次數 37
http://hkwildlife.net/Forum/attachment.php?aid=4884


作者: even928    時間: 2007-4-17 22:12


thx very much




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