Dictionary » W » Weed



(Science: botany) Any plant that is growing in a place where a human wants a different kindof plant or no plants at all. Any plant that crowds out cultivated plants.Clear of weeds; weed the garden.Plants that are considered a nuisance to man because they compete for resources in the same local environment as the crops we intend to grow for our own species. The weed may actually indirectly helping the crop by diverting pathogens that may otherwise.

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China injects uncertainty into world of genetically modified

By Tim Barker There is a new era in weed management fast approaching farmers. Monsanto and competitor Dow AgroSciences are on the verge of introducing the next generation of herbicide-resistant corn, soybeans and cotton — genetically modified ...

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by Sheppie
Mon Jan 19, 2015 11:59 am
Forum: Botany Discussion
Topic: China injects uncertainty into world of genetically modified
Replies: 0
Views: 480

How many primary trisomics are in weed Datura?

Weed Datura has 24 diploid. How may primary trisomics does it has? Also please tell me how can we calculate the number of primary trisomics from diploid.

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by Nazneen2013
Sun Nov 03, 2013 11:28 am
Forum: Cell Biology
Topic: How many primary trisomics are in weed Datura?
Replies: 0
Views: 1076

Effect Of carbon dioxide on rate of photosynthesis

... to spend time waiting for more CO2 to arrive). Increasing the concentration of CO2 increases the rate of photosynthesis. Experiment Place a pond weed Elodea upside in a test tube containing water at 25°C. Place the tube in a beaker of fresh water. Place excess sodium bicarbonate (NaHCO3) in the ...

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by snowfall
Thu May 30, 2013 5:33 pm
Forum: Botany Discussion
Topic: Effect Of carbon dioxide on rate of photosynthesis
Replies: 4
Views: 8019

effects of transgenic plants

Hi all, What is difference between control weeds by transgenic plants, chemical herbicide and bioherbicide? Chemical herbicide control weed through spray chemicals but how transgenic plants control weeds? I need our suggestion and share your idea.

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by kanagasundar
Tue Mar 12, 2013 9:33 am
Forum: Molecular Biology
Topic: effects of transgenic plants
Replies: 1
Views: 1755

Bug ID help needed

_TEN3126_.JPG While shooting a Kudzu infestation in western Tennessee I found this strange bug on a weed. Anyone know what this thing is?

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by Stumped
Fri Jun 22, 2012 10:50 pm
Forum: Zoology Discussion
Topic: Bug ID help needed
Replies: 2
Views: 3542
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