Seed quality and water use characteristics of maize landraces compared with selected commercial hybrids

Understanding seed quality and water use characteristics of maize (Zea mays L.) landraces will improve food security among subsistence farmers who still cultivate them. The objective of this study was to evaluate seed quality and water use characteristics of two maize landraces (GQ1 and GQ2) compare...

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Autores principales:	Mazvimbakupa,Farai, Thembinkosi Modi,Albert, Mabhaudhi,Tafadzwanashe
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2015
Materias:	Hybrids landraces seed quality water use Zea mays
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000100002
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spelling	oai:scielo:S0718-583920150001000022018-10-01Seed quality and water use characteristics of maize landraces compared with selected commercial hybridsMazvimbakupa,FaraiThembinkosi Modi,AlbertMabhaudhi,Tafadzwanashe Hybrids landraces seed quality water use Zea mays Understanding seed quality and water use characteristics of maize (Zea mays L.) landraces will improve food security among subsistence farmers who still cultivate them. The objective of this study was to evaluate seed quality and water use characteristics of two maize landraces (GQ1 and GQ2) compared with two commercial hybrids (SC701 and PAN53). Seed quality was determined by the standard germination, electrical conductivity, and tetrazolium tests. A controlled environment study was conducted in which the landraces were compared with hybrids across three water treatments (30% ETc; 50% ETc, and 80% ETc). Although landrace GQ2 performed at par with the hybrids, overall, seed quality tests showed that hybrids had superior seed quality than landraces. This was also confirmed by highly significant emergence results (P < 0.001) from pot trials where SC701 and PAN53 had higher emergence (100% and 94.44%, respectively) compared with GQ2 (86.11%) and GQ1 (61.11%). Subjecting landraces and hybrids to water stress (50% and 30% ETc) resulted in shorter plants with fewer leaves and earlier tasselling compared with non-stressed plants (80% ETc). Plant height for the 30% ETc water treatment was 156.1 cm compared with 175.8 cm for the 80% ETc water treatment, while plants under the 30% ETc water treatment tasseled at 105.4 d compared with 129.5 d for the 80% ETc water treatment. The GQ2 landrace continued to perform similar to, and often better, than the hybrid varieties, especially under stress conditions. Yield was poor under controlled conditions. Performance of the GQ2 landrace for both seed quality tests and under controlled conditions shows that landraces remain an important germplasm resource.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.75 n.1 20152015-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000100002en10.4067/S0718-58392015000100002
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Hybrids landraces seed quality water use Zea mays
spellingShingle	Hybrids landraces seed quality water use Zea mays Mazvimbakupa,Farai Thembinkosi Modi,Albert Mabhaudhi,Tafadzwanashe Seed quality and water use characteristics of maize landraces compared with selected commercial hybrids
description	Understanding seed quality and water use characteristics of maize (Zea mays L.) landraces will improve food security among subsistence farmers who still cultivate them. The objective of this study was to evaluate seed quality and water use characteristics of two maize landraces (GQ1 and GQ2) compared with two commercial hybrids (SC701 and PAN53). Seed quality was determined by the standard germination, electrical conductivity, and tetrazolium tests. A controlled environment study was conducted in which the landraces were compared with hybrids across three water treatments (30% ETc; 50% ETc, and 80% ETc). Although landrace GQ2 performed at par with the hybrids, overall, seed quality tests showed that hybrids had superior seed quality than landraces. This was also confirmed by highly significant emergence results (P < 0.001) from pot trials where SC701 and PAN53 had higher emergence (100% and 94.44%, respectively) compared with GQ2 (86.11%) and GQ1 (61.11%). Subjecting landraces and hybrids to water stress (50% and 30% ETc) resulted in shorter plants with fewer leaves and earlier tasselling compared with non-stressed plants (80% ETc). Plant height for the 30% ETc water treatment was 156.1 cm compared with 175.8 cm for the 80% ETc water treatment, while plants under the 30% ETc water treatment tasseled at 105.4 d compared with 129.5 d for the 80% ETc water treatment. The GQ2 landrace continued to perform similar to, and often better, than the hybrid varieties, especially under stress conditions. Yield was poor under controlled conditions. Performance of the GQ2 landrace for both seed quality tests and under controlled conditions shows that landraces remain an important germplasm resource.
author	Mazvimbakupa,Farai Thembinkosi Modi,Albert Mabhaudhi,Tafadzwanashe
author_facet	Mazvimbakupa,Farai Thembinkosi Modi,Albert Mabhaudhi,Tafadzwanashe
author_sort	Mazvimbakupa,Farai
title	Seed quality and water use characteristics of maize landraces compared with selected commercial hybrids
title_short	Seed quality and water use characteristics of maize landraces compared with selected commercial hybrids
title_full	Seed quality and water use characteristics of maize landraces compared with selected commercial hybrids
title_fullStr	Seed quality and water use characteristics of maize landraces compared with selected commercial hybrids
title_full_unstemmed	Seed quality and water use characteristics of maize landraces compared with selected commercial hybrids
title_sort	seed quality and water use characteristics of maize landraces compared with selected commercial hybrids
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000100002
work_keys_str_mv	AT mazvimbakupafarai seedqualityandwaterusecharacteristicsofmaizelandracescomparedwithselectedcommercialhybrids AT thembinkosimodialbert seedqualityandwaterusecharacteristicsofmaizelandracescomparedwithselectedcommercialhybrids AT mabhaudhitafadzwanashe seedqualityandwaterusecharacteristicsofmaizelandracescomparedwithselectedcommercialhybrids
_version_	1714205342350442496

Seed quality and water use characteristics of maize landraces compared with selected commercial hybrids

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