Rice Seeds Selection

1. Rice Seeds Selection Present by Suksan Kantree Khao Kwan Foundation www.khaokwan.org Email:khao-kwan@hotmail.com

2. World distribution of rice Wild rice Domesticated Asian rice Javanica rice Indica rice Japonica rice

3. Why we need to improve rice varieties?

4. 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.

5. 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

6. 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

7. Tools

8. Step 1

9. Step 2

13. 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

14. Step 3

15. Step 4

18. Step 5

19. Step 6

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