The Dayaknese tribe, A tribe in Kalimantan island, was cultivated upland rice in high elevation of Meratus mountains.
Some cultivar was cultivated and not identify by researcher. Due their ability to growth with low water in the soil, these rice genotypes was expected have an ability to drought condition.
Interestingly, the rice grain was storage by the local people for a long time (up to 7 years) after harvesting time.
This information leaving a few question for me:
Is the upland rice genotypes important for drought tolerance?
Is the rice seed still viable after long time storage?
Thank you for the answer.
Best Regards.
Ya definitely...If those are growing nicely in such low water content of soil, they may necessarily have some drought resistant mechanism. They may have some adaptive features to tolerate the drought condition.
Regarding viability of seeds, that information also can be collected from those people, whether they grow those seeds after 6-7 years or not.
Whatever the assumption is done, it is to be confirmed experimentally, to make some appropriate conclusion. However if some novel gene can be identified for drought tolernce, it will be a very good report.
You can explore genetics behind seed viability of upland rice by genetic mapping. From my experiences in working with upland rice, drought tolerance is an adaptive feature in upland rice
There are also some upland rice cultivar in Yunnan Province, China. But it looks not so many resarchers working on it.
Upland rice varieties can be checked by "drought tolerance/resistance" by the seed filling time. This is critical to find out if it shows tolerance. Do you have any information on this?
Thanks Rajesh Dev Sarkar
Based on the information that i got, the taste and aroma of rice cultivar still same after 10 years storage. And sorry for the unvalid information. Actually they storaged the rice grain up to 70 years. They store the grain in special batch make from the wood bark. (Kindly see the picture attached)
Thanks to Rudra Bhattarai and Hong-Guang Zha
Sorry Luis Carlos da Silva Ramos , actually i don't have an information about that.
But the Rice in your hand doesn't look healthy, it looks like a fungal attack in the seeds. What you think, will it get germinated?
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