Morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency

The response of two forage sorghum [Sorghum bicolor (L.) Moench] varieties, Speedfeed and KFS4, to salinity and irrigation frequency were studied from January to December 2009. The two varieties were grown under salinity levels of 0, 5, 10 and 15 dS m-1 and irrigated when the leaf water potential re...

Full description

Saved in:
Bibliographic Details
Main Authors: Saberi, Ali Reza, Hassan, Siti Aishah, Abd Halim, Mohd Ridzwan, Abdul Rahman, Zaharah
Format: Article
Language:English
Published: WFL Publisher 2011
Online Access:http://psasir.upm.edu.my/id/eprint/23717/1/Morphology%20and%20yield%20of%20ratoon%20forage%20sorghums%20under%20varying%20salinity%20and%20irrigation%20frequency.pdf
http://psasir.upm.edu.my/id/eprint/23717/
https://www.wflpublisher.com/Abstract/2354
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Universiti Putra Malaysia
Language: English
id my.upm.eprints.23717
record_format eprints
spelling my.upm.eprints.237172019-11-14T02:51:21Z http://psasir.upm.edu.my/id/eprint/23717/ Morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency Saberi, Ali Reza Hassan, Siti Aishah Abd Halim, Mohd Ridzwan Abdul Rahman, Zaharah The response of two forage sorghum [Sorghum bicolor (L.) Moench] varieties, Speedfeed and KFS4, to salinity and irrigation frequency were studied from January to December 2009. The two varieties were grown under salinity levels of 0, 5, 10 and 15 dS m-1 and irrigated when the leaf water potential reached -1 (control), -1.5 and -2 MPa. Salinity and irrigation frequency significantly affected stem diameter, number of tillers, plant height, total leaf area and cumulative dry matter yield of ratoon forage sorghum (P<0.01). Low soil water (-2 MPa) reduced plant height in non-saline and medium saline conditions by 33.4 and 28.9%, respectively, whereas in highly saline soil there was 34.4% reduction in plant height even at medium water stress (-1.5 MPa). Maximum number of tillers (2.48 tillers plant-1) was produced in non-saline soil. Low soil water content and high salinity reduced the number of tillers produced. Total leaf area of plants also decreased with increasing salinity and irrigation interval. Overall Speedfeed variety had stems with a smaller mean diameter than KFS4 and produced a higher number of tillers than KFS4. Regardless of variety, leaf firing increased with increasing salinity, reaching 59.95% in the extreme salinity treatment of 15 dS m-1 , and it increased with increasing water stress reaching 48.77% in the extreme water stress treatment of -2 MPa. However, there was less water deficit and salinity injury noticeable in KFS4 at all irrigation levels compared to Speedfeed. Most of the decline in growth parameters was significant only at -2 MPa irrigation frequency which means irrigation of forage sorghum can be withheld till leaf water potential reaches -1.5 MPa. WFL Publisher 2011 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/23717/1/Morphology%20and%20yield%20of%20ratoon%20forage%20sorghums%20under%20varying%20salinity%20and%20irrigation%20frequency.pdf Saberi, Ali Reza and Hassan, Siti Aishah and Abd Halim, Mohd Ridzwan and Abdul Rahman, Zaharah (2011) Morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency. Journal of Food, Agriculture and Environment, 9 (3&4). pp. 618-621. ISSN 1459-0255; ESSN: 1459-0263 https://www.wflpublisher.com/Abstract/2354 10.1234/4.2011.2354
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The response of two forage sorghum [Sorghum bicolor (L.) Moench] varieties, Speedfeed and KFS4, to salinity and irrigation frequency were studied from January to December 2009. The two varieties were grown under salinity levels of 0, 5, 10 and 15 dS m-1 and irrigated when the leaf water potential reached -1 (control), -1.5 and -2 MPa. Salinity and irrigation frequency significantly affected stem diameter, number of tillers, plant height, total leaf area and cumulative dry matter yield of ratoon forage sorghum (P<0.01). Low soil water (-2 MPa) reduced plant height in non-saline and medium saline conditions by 33.4 and 28.9%, respectively, whereas in highly saline soil there was 34.4% reduction in plant height even at medium water stress (-1.5 MPa). Maximum number of tillers (2.48 tillers plant-1) was produced in non-saline soil. Low soil water content and high salinity reduced the number of tillers produced. Total leaf area of plants also decreased with increasing salinity and irrigation interval. Overall Speedfeed variety had stems with a smaller mean diameter than KFS4 and produced a higher number of tillers than KFS4. Regardless of variety, leaf firing increased with increasing salinity, reaching 59.95% in the extreme salinity treatment of 15 dS m-1 , and it increased with increasing water stress reaching 48.77% in the extreme water stress treatment of -2 MPa. However, there was less water deficit and salinity injury noticeable in KFS4 at all irrigation levels compared to Speedfeed. Most of the decline in growth parameters was significant only at -2 MPa irrigation frequency which means irrigation of forage sorghum can be withheld till leaf water potential reaches -1.5 MPa.
format Article
author Saberi, Ali Reza
Hassan, Siti Aishah
Abd Halim, Mohd Ridzwan
Abdul Rahman, Zaharah
spellingShingle Saberi, Ali Reza
Hassan, Siti Aishah
Abd Halim, Mohd Ridzwan
Abdul Rahman, Zaharah
Morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency
author_facet Saberi, Ali Reza
Hassan, Siti Aishah
Abd Halim, Mohd Ridzwan
Abdul Rahman, Zaharah
author_sort Saberi, Ali Reza
title Morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency
title_short Morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency
title_full Morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency
title_fullStr Morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency
title_full_unstemmed Morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency
title_sort morphology and yield of ratoon forage sorghums under varying salinity and irrigation frequency
publisher WFL Publisher
publishDate 2011
url http://psasir.upm.edu.my/id/eprint/23717/1/Morphology%20and%20yield%20of%20ratoon%20forage%20sorghums%20under%20varying%20salinity%20and%20irrigation%20frequency.pdf
http://psasir.upm.edu.my/id/eprint/23717/
https://www.wflpublisher.com/Abstract/2354
_version_ 1651869026521972736