Effects of shape and size of hybrid maize seed on germination and vigour of different genotypes

ABSTRACT The uniform seed material is a prerequisite of stable yields. Therefore, the aim of the study was to observe variability of physiological seed traits depending on the classification of seeds by size and shape, and to determine advantages of large over small seed fractions. Three maize (Zea...

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Autores principales:	Tabakovic,Marijenka, Simic,Milena, Stanisavljevic,Rade, Milivojevic,Marija, Secanski,Mile, Postic,Dobrivoj
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2020
Materias:	Physiological traits seed size Zea mays
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000300381
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spelling	oai:scielo:S0718-583920200003003812020-08-18Effects of shape and size of hybrid maize seed on germination and vigour of different genotypesTabakovic,MarijenkaSimic,MilenaStanisavljevic,RadeMilivojevic,MarijaSecanski,MilePostic,Dobrivoj Physiological traits seed size Zea mays ABSTRACT The uniform seed material is a prerequisite of stable yields. Therefore, the aim of the study was to observe variability of physiological seed traits depending on the classification of seeds by size and shape, and to determine advantages of large over small seed fractions. Three maize (Zea mays L.) hybrids (ZP 505, ZP 677, ZP 684), produced in two locations (Orahovo, Plavna), were classified into six fractions; small flat seed (SFS), medium small flat seed (MSFS), large flat seed (LFS), small round seed (SRS), medium small round seed (MSRS) and large round seed (LRS). Two laboratory treatments were applied on seed: TR1 (cold test) and TR2 (20/30 ºC). In both temperature treatments, the first evaluation was done after 72-h germination, and then every 24 h until 7th day. The highest total germination (G) was recorded for ZP 677 (93.7%), location Orahovo (94.9%), temperature TR2 (95.2%) and MSFS fraction (89.7%). The total proportion of factors in the variance for G was R2 = 0.694. Locations and genotypes predominantly affected the germination rate (GR), η = 0.338. Flat fraction seeds had more rapid emergence (> 90%) of seedlings than the round fraction seeds (> 85%). Round seeds were more susceptible and seed size had a greater effect on vigour than LRS, 70%. The partial effect of the fraction on G was not estimated (η = 0.037), but its cumulative effect with other factors was evident (Hybrid × Fraction, η = 0.070).info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.80 n.3 20202020-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000300381en10.4067/S0718-58392020000300381
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Physiological traits seed size Zea mays
spellingShingle	Physiological traits seed size Zea mays Tabakovic,Marijenka Simic,Milena Stanisavljevic,Rade Milivojevic,Marija Secanski,Mile Postic,Dobrivoj Effects of shape and size of hybrid maize seed on germination and vigour of different genotypes
description	ABSTRACT The uniform seed material is a prerequisite of stable yields. Therefore, the aim of the study was to observe variability of physiological seed traits depending on the classification of seeds by size and shape, and to determine advantages of large over small seed fractions. Three maize (Zea mays L.) hybrids (ZP 505, ZP 677, ZP 684), produced in two locations (Orahovo, Plavna), were classified into six fractions; small flat seed (SFS), medium small flat seed (MSFS), large flat seed (LFS), small round seed (SRS), medium small round seed (MSRS) and large round seed (LRS). Two laboratory treatments were applied on seed: TR1 (cold test) and TR2 (20/30 ºC). In both temperature treatments, the first evaluation was done after 72-h germination, and then every 24 h until 7th day. The highest total germination (G) was recorded for ZP 677 (93.7%), location Orahovo (94.9%), temperature TR2 (95.2%) and MSFS fraction (89.7%). The total proportion of factors in the variance for G was R2 = 0.694. Locations and genotypes predominantly affected the germination rate (GR), η = 0.338. Flat fraction seeds had more rapid emergence (> 90%) of seedlings than the round fraction seeds (> 85%). Round seeds were more susceptible and seed size had a greater effect on vigour than LRS, 70%. The partial effect of the fraction on G was not estimated (η = 0.037), but its cumulative effect with other factors was evident (Hybrid × Fraction, η = 0.070).
author	Tabakovic,Marijenka Simic,Milena Stanisavljevic,Rade Milivojevic,Marija Secanski,Mile Postic,Dobrivoj
author_facet	Tabakovic,Marijenka Simic,Milena Stanisavljevic,Rade Milivojevic,Marija Secanski,Mile Postic,Dobrivoj
author_sort	Tabakovic,Marijenka
title	Effects of shape and size of hybrid maize seed on germination and vigour of different genotypes
title_short	Effects of shape and size of hybrid maize seed on germination and vigour of different genotypes
title_full	Effects of shape and size of hybrid maize seed on germination and vigour of different genotypes
title_fullStr	Effects of shape and size of hybrid maize seed on germination and vigour of different genotypes
title_full_unstemmed	Effects of shape and size of hybrid maize seed on germination and vigour of different genotypes
title_sort	effects of shape and size of hybrid maize seed on germination and vigour of different genotypes
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392020000300381
work_keys_str_mv	AT tabakovicmarijenka effectsofshapeandsizeofhybridmaizeseedongerminationandvigourofdifferentgenotypes AT simicmilena effectsofshapeandsizeofhybridmaizeseedongerminationandvigourofdifferentgenotypes AT stanisavljevicrade effectsofshapeandsizeofhybridmaizeseedongerminationandvigourofdifferentgenotypes AT milivojevicmarija effectsofshapeandsizeofhybridmaizeseedongerminationandvigourofdifferentgenotypes AT secanskimile effectsofshapeandsizeofhybridmaizeseedongerminationandvigourofdifferentgenotypes AT posticdobrivoj effectsofshapeandsizeofhybridmaizeseedongerminationandvigourofdifferentgenotypes
_version_	1714205401323405312

Effects of shape and size of hybrid maize seed on germination and vigour of different genotypes

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