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Breeding for cooking quality with drought tolerance in rice by using Marker Assistant Selection

Breeding for cooking quality with drought tolerance in rice by using Marker Assistant Selection. By Heang Dany and Then Rathmuny Cambodian Agricultural Research and Development Institute (CARDI). Background.

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Breeding for cooking quality with drought tolerance in rice by using Marker Assistant Selection

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  1. Breeding for cooking quality with drought tolerance in rice by using Marker Assistant Selection By Heang Dany and Then Rathmuny Cambodian Agricultural Research and Development Institute (CARDI)

  2. Background • 12 millions total population with 181035 km2 and around 80% of people are located in the rural side • Around 40% of GDP were from agriculture annually and half of them were from rice. • The total of cultivated areas of rice are 2,137,125 ha, which wet season is 1,845,135 ha and around 86% of this area are called rainfed lowland.

  3. Background • We have been work a lot since 1986 with collaboration with CIAP (Cambodia-Irri-Australia Project) and achieved in releasing 35 rice varieties in different rice ecosystem for Cambodian farmers there are: 9 early, 5 medium for irrigation (photoperiod insensitive), 8 medium, 11 late (photoperiod sensitive) and 2 upland rice

  4. Background

  5. Statement problems • Drought is a major problem in Rainfed lowland rice in Cambodia that can cause yield loss in rice dramatically up to 50% or more. Since we are covered by 86% of rainfed lowland so drought tolerance would be a subject to be improved with good grain quality of rice as well. • People always need much quality with good quality • Ex in 2003 drought damage around 142 480 ha by early drought in the season….

  6. Objective • To improve grain quality with tolerance to drought for rice

  7. Selecting Donor and Recipient • Donor: Phkar Rum Duol: • Release year: 1999 • Medium: 30 Oct-7 Nov. • Grain length: 7.5, width: 2.1. Ration L/W: 3.6 • Amylose content: 23.4% • Gelatinization temperature: Low • Gel consistency: 81 mm • Aroma (scent): scent/soft texture

  8. Phka Rum Duol

  9. Selecting Donor and Recipient • Recipient: CAR3, drought by DRI: 0.43 • Release year: 1995 • Medium: 30 Oct-7 Nov. • Grain length: 6.4, width: 2.2, Ration L/W: 2.9 • Amylose content: 21.3% • Gelatinization temperature: Low/intermidate • Gel consistency: 60 mm

  10. Breeding Scheme

  11. Thanks for your attention!

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