Model of safe drying temperature for paddy rice seed

Liu Muhua; Cao Chongwen

Volume 19 Issue 3

May 2003

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Abstract

Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2003 > 19(3): 174-177.

Liu Muhua, Cao Chongwen. Model of safe drying temperature for paddy rice seed[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2003, 19(3): 174-177.

Citation:

Liu Muhua, Cao Chongwen. Model of safe drying temperature for paddy rice seed[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2003, 19(3): 174-177.

Citation:

Liu Muhua, Cao Chongwen. Model of safe drying temperature for paddy rice seed[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2003, 19(3): 174-177.

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Model of safe drying temperature for paddy rice seed

Liu Muhua¹,
Cao Chongwen²

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Received Date: April 26, 2002
Published Date: May 30, 2003

Graphical Abstract

Abstract

Abstract

The model of safe drying temperature for rice seed was developed based on kinetic models of germination and the glass transition temperature model using free-volume theory of polymer, and proper temperature of rice seed drying can be calculated in order to obtain proper germination rate using this model. In order to determine the coefficient of the model of safe drying temperature of rice seed, the drying experiment of rice seed was completed using thin-layer drying experiment device at various initial moisture contents of rice kernel and heated air temperatures, and germination experiment of rice seed was carried out in constant temperature tank. The computer simulated safe temperature during drying that ensures high germination ratio was given based on the model of rice seed safe drying temperature. The results indicate that the curve of safe drying temperature has the bottom and the bottom increases as the moisture content of rice seed decreasing. In the end, some suggestions for rice seed drying temperature were given.
- paddy rice seed,
- safe drying temperature,
- glass transition,
- germination ratio

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