Rice seed germination attributes dried by a recirculating dryer

ABSTRACT Using quality seed is a forcible factor in stabilizing agricultural crop production. Rough rice usually has moisture contents over 20 percent during harvest time. Grain respiration and transpiration cause seed deterioration and make it vulnerable to microorganisms, insects, and other pests....

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Autor principal:	Allameh,Alireza
Lenguaje:	English
Publicado:	Universidad de Tarapacá. Facultad de Ciencias Agronómicas 2021
Materias:	rice seed drying grain moisture content germination
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292021000100087
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spelling	oai:scielo:S0718-342920210001000872021-08-02Rice seed germination attributes dried by a recirculating dryerAllameh,Alireza rice seed drying grain moisture content germination ABSTRACT Using quality seed is a forcible factor in stabilizing agricultural crop production. Rough rice usually has moisture contents over 20 percent during harvest time. Grain respiration and transpiration cause seed deterioration and make it vulnerable to microorganisms, insects, and other pests. Hence, grain moisture content has to be kept at a certain level to maintain seed quality. An appropriate drying air temperature should dry Rough rice to a desired final moisture content. In this study, newly harvested paddy (Hashemi cultivar) was dried by a recirculating dryer with three drying air temperatures (37, 42, and 48 °C) until two final moisture contents (12 and 14% w.b.). The effect of parameters was examined on seed germination characteristics (i.e., germinability, mean ger mination rate, germination energy, and seedling vigor index). The results revealed that drying air temperature and the final seed moisture content affected germinability and seedling weight vigor index significantly (p < 0.01). Seedling length vigor index and germination energy were only influenced by drying air temperature (p < 0.01). The highest seed germinability (80% averagely) was acquired when the seed dried by drying air temperature of 37 °C to the final moisture content of 14%. The mean germination rate was not affected by those factors. The maximum seedling length vigor index (16262) observed while drying air temperature was 37 °C . The highest seedling weight vigor index (8.186) was obtained when the seed was dried by an air temperature of 37 °C up to 14% final moisture content. The maximum germination energy (68.7%) belonged to samples treated by drying air temperature of 37 °C up to 14% final moisture content. Altogether, optimum seed drying is achieved in the drying air temperature of 37 °C up to 14% final moisture content.info:eu-repo/semantics/openAccessUniversidad de Tarapacá. Facultad de Ciencias AgronómicasIdesia (Arica) v.39 n.1 20212021-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292021000100087en10.4067/S0718-34292021000100087
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	rice seed drying grain moisture content germination
spellingShingle	rice seed drying grain moisture content germination Allameh,Alireza Rice seed germination attributes dried by a recirculating dryer
description	ABSTRACT Using quality seed is a forcible factor in stabilizing agricultural crop production. Rough rice usually has moisture contents over 20 percent during harvest time. Grain respiration and transpiration cause seed deterioration and make it vulnerable to microorganisms, insects, and other pests. Hence, grain moisture content has to be kept at a certain level to maintain seed quality. An appropriate drying air temperature should dry Rough rice to a desired final moisture content. In this study, newly harvested paddy (Hashemi cultivar) was dried by a recirculating dryer with three drying air temperatures (37, 42, and 48 °C) until two final moisture contents (12 and 14% w.b.). The effect of parameters was examined on seed germination characteristics (i.e., germinability, mean ger mination rate, germination energy, and seedling vigor index). The results revealed that drying air temperature and the final seed moisture content affected germinability and seedling weight vigor index significantly (p < 0.01). Seedling length vigor index and germination energy were only influenced by drying air temperature (p < 0.01). The highest seed germinability (80% averagely) was acquired when the seed dried by drying air temperature of 37 °C to the final moisture content of 14%. The mean germination rate was not affected by those factors. The maximum seedling length vigor index (16262) observed while drying air temperature was 37 °C . The highest seedling weight vigor index (8.186) was obtained when the seed was dried by an air temperature of 37 °C up to 14% final moisture content. The maximum germination energy (68.7%) belonged to samples treated by drying air temperature of 37 °C up to 14% final moisture content. Altogether, optimum seed drying is achieved in the drying air temperature of 37 °C up to 14% final moisture content.
author	Allameh,Alireza
author_facet	Allameh,Alireza
author_sort	Allameh,Alireza
title	Rice seed germination attributes dried by a recirculating dryer
title_short	Rice seed germination attributes dried by a recirculating dryer
title_full	Rice seed germination attributes dried by a recirculating dryer
title_fullStr	Rice seed germination attributes dried by a recirculating dryer
title_full_unstemmed	Rice seed germination attributes dried by a recirculating dryer
title_sort	rice seed germination attributes dried by a recirculating dryer
publisher	Universidad de Tarapacá. Facultad de Ciencias Agronómicas
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292021000100087
work_keys_str_mv	AT allamehalireza riceseedgerminationattributesdriedbyarecirculatingdryer
_version_	1714203791706816512

Rice seed germination attributes dried by a recirculating dryer

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