Rice Seeds Selection

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Rice Seeds Selection

• Present by Suksan Kantree
• Khao Kwan Foundation
• www.khaokwan.org
• Emailkhao-kwan_at_hotmail.com

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World distribution of rice

• Domesticated Asian rice

Wild rice
Javanica rice
Indica rice
Japonica rice
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Why we need to improve rice varieties?
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How do you get good rice seed?

• Collect rice varieties, in particular varieties
  that are well adapted to specific areas.
• To collect varieties from off-farm, perhaps
• seed exchanges can take place within
• a farmer network or seed bank.
• Varieties should be
• evaluated to study
• their characteristic
• in order to select
• the parent lines.

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Thing you should know about selecting rice to be
used for varietal improvement

• Characteristic of rice that you
  are interested in , such as
• Type of stem
• The color
• The test
• The age of maturity
• Water and day
• length requirement

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Setting rice selection goals

• Pure-line variety
• Open-pollinated (OP) variety
• Greater yield and better quality
• Resistance to diseases and insect
• Appropriate to organic farming
• Day length insensitive variety

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Tools
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Step 1
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Step 2
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Quality Brown Rice for Seed
1. Slender 2. Shiny 3. No chalkiness or
abdonimal white 4. No chipped, cracked or
undeveloped kernel 5. Small nose
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Step 3
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Step 4
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Step 5
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Step 6
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