Dictionary » S » Self pollination

Self pollination

==


Self-Pollination: The transfer of pollen from an anther to a stigma of the same flower. ==


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How many pollengrains enter the ovary?

How many pollen grains enter the ovary during pollination. If only one pollen tube enters,one seed should be formed.But how is it possible to form large nuber of seeds in a single ovary?

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by kumar985
Sun Oct 28, 2012 9:32 am
 
Forum: Botany Discussion
Topic: How many pollengrains enter the ovary?
Replies: 1
Views: 2507

How dominance works at the DNA/RNA/protein

... gives green peas and one yellow. They are true breeding because they self-pollinate (“mother” and “father” are one plant). Now you decided to see what happens if they breed together, so you do cross-pollination. Your new generation receives one copy of each chromosome from yellow ...

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by Cat
Fri Oct 05, 2012 1:15 am
 
Forum: Genetics
Topic: How dominance works at the DNA/RNA/protein
Replies: 10
Views: 7398

Help please

... with the parent. 3. Give three reasons why seed reproduction is more complex than vegetative reproduction Ans; depend on outside agents. Eg pollination and dispersal Slow growth of the young plants to maturity Wasteful( petals, nectar, pollen, fruit) Explain why seed-grown plants often show ...

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by Olympic
Wed Aug 01, 2012 7:45 pm
 
Forum: General Discussion
Topic: Help please
Replies: 8
Views: 7906

How does seeds formed after pollination?

In a flower ovary consists of ovules.Ovule has an egg cell.When pollination occur among several pollen grains only one pollengrain enter the ovule and fertilize the egg. After pollination ovary is converted to fruit and ovules are converted to seeds. Only ...

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by kumar985
Fri Jul 20, 2012 4:09 pm
 
Forum: Botany Discussion
Topic: How does seeds formed after pollination?
Replies: 1
Views: 4289

Re: Why is knowledge on phylogeny important

... sympatric wild population). This happens when commercially bred bumble bees are transported to other countries to aid in the increasing demand for pollination => Pathogen spillover seems most likely to occur when the reservoir host and potential novel host are phylogenetically close (e.g., Perlman ...

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by Lucanus cervus
Tue Jun 05, 2012 11:45 pm
 
Forum: Evolution
Topic: Why is knowledge on phylogeny important
Replies: 4
Views: 7744
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