Mean germination time as an indicator of emergence performance in soil of seed lots of maize (Zea mays)

Matthews, S.; Hosseini, Mohammad

doi:10.15258/sst.2006.34.2.09

Cited by 71 publications

(46 citation statements)

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“…Among the vigor tests, MGT calculated in the cold test gave higher the coefficient (r=0.658**) and better in predicting field emergence percentage; however, this value was lower than that of the cold, AA and EC tests. These results agree with Matthews and Khajeh-Hosseini (2006) and Santorum et al .377* *, ** significant at %5 and %1 levels of probability, respectively (2013), indicating that MGT had potential as an indicator of seedling emergence in maize.…”

Section: Discussionsupporting

confidence: 89%

Efficiency of Vigor Tests and Seed Elemental Concentrations to Estimate Field Emergence in Soybean (Glycine max)

Kaya¹,

Kulan²,

Dağhan³

et al. 2016

IJAB

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The relationship between seed vigor test and seedling emergence is crucial to predict easily the seed performance under field conditions and the seed producers continuously explore the best vigor test to enhance stand establishment. This study was conducted to determine the suitable seed vigor test and mineral element in the seed to predict accurately the field performance of soybean. Fifty seed lots of 22 commercial soybean cultivars were assessed for seedling emergence under field conditions and germination, emergence, cool and cold tests, electrical conductivity (EC) and pH for 4, 8 and 24 h, accelerated ageing (AA) at 41, 43 and 45°C for 48, 72, 96, 120 and 144 h in the laboratory. Initial seed weight, oil, protein, P, K, Ca, Fe, Mn and Zn concentration in seed lots were also investigated. Their results were correlated with field emergence percentage of seed lots to detect the most suitable indicator for vigorous seed lot. The germination percentage varied from 56% to 100%, while the field emergence percentage ranged between 0% and 84%. No significant correlation was noticed between field emergence and seed weight, oil and protein contents. AA test at 41°C for 72 h gave the highest significantly positive correlation with r=0.831**, but the highest significant and negative correlation coefficient (r=-0.801**) with field emergence percentage were observed in EC test for 24 h. Only Mn concentration of six elements investigated was significantly correlated with field emergence (r=-0.376*). It was concluded that the AA condition of 72 h at 41°C are recommended as an ideal seed vigor test to estimate closely field emergence performance of soybean seeds.

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Section: Discussionsupporting

confidence: 89%

Efficiency of Vigor Tests and Seed Elemental Concentrations to Estimate Field Emergence in Soybean (Glycine max)

Kaya¹,

Kulan²,

Dağhan³

et al. 2016

IJAB

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“…This seems to indicate that both tests may be less suitable to predict seed behaviour in rather critical conditions. Matthews and Khajeh Hosseini (2006) reported significant correlations between mean germination time (MGT) at 13 °C in paper towels and final emergence or MET in soil in the growth chamber; similar correlations were found by Khajeh Hosseini et al (2009) with field emergence. In the latter work, considering that frequent counts are needed to determine the MGT, the Authors suggested that early counts of physiological germination (such as after 6 days at 13 °C) could be a more convenient and easy to standardise procedure to be used in the seed testing routine.…”

Section: Discussionsupporting

confidence: 68%

“…Recent papers (Matthews and Khajeh Hosseini, 2006;Ilbi et al, 2009;Khajeh Hosseini et al, 2009;Matthews et al, 2010) have suggested other procedures as potential routine vigour tests for maize such as mean germination time (MGT) or early counts of physiological germination measured at suboptimal cool germination (CG) or near to optimal temperatures in soil or in paper towels. The determination of the MGT, requiring several daily counts is, however, rather time-consuming and does not appear to be a practicable procedure in routine testing.…”

Section: Introductionmentioning

confidence: 99%

Reliability of Early and Final Counts in Cold and Cool Germination Tests for Predicting Maize Seed Vigour

Noli¹,

Beltrami²,

Casarini³

et al. 2010

Ital J Agronomy

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Cold test (CT) is widely used in maize for predicting field performance in early sowing, even though it is rather labour intensive and requires almost two weeks to complete. The objective of this work was to examine alternative procedures to CT suitable for routine testing. Standard germination (SG), CT and cool germination (CG) were carried out on 24 maize lots chosen with high (> 85%) SG. For the three tests, besides the final count of normal seedlings, early counts of germinated seeds were made. Lots were evaluated in two field trials (six replicates each) sowed at a very early and early date. For all the laboratory traits, the differences among lots were significant and attained higher values in the early counts compared to the final ones. Moreover, the correlations were high between early counts performed during the three tests but were in general lower between early and final counts. Early counts showed lower correlations with field performance than the final ones, except for the count at 144 h during CG that attained a correlation level with field emergence (r = 0.81) similar to the final counts of CG and CT. Nonetheless, the evaluation of seedling vigour during the final count of CT showed the highest predictive value of field performance. All the laboratory measures were in close agreement with field performance when the latter was evaluated under less unfavourable conditions.

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“…Reduced seed vigor, seen as increased MGT, has consistently been related to ageing in artificially [9] and naturally aged seeds [10]. Older maize seed had lower vigor as seen in soil emergence tests and was slower to germinate as indicated by higher MGT [16]. As MGT increases, final germination decreases; Fig.…”

Section: Discussionmentioning

confidence: 86%

Can mean germination time predict seed vigor of canola (Brassica napus L.) seed lots?

Amirmoradi¹,

Feizi²

2017

Acta Agrobot

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The aim of this research was to test if mean germination time (MGT) can predict seed vigor in 10 seed lots of canola. There was a significant difference between the final germination percentages of the 10 seed lots tested ('Hyola 330' , 'Hyola 401' , 'Okapi' , 'Elite' , 'SLMO 46' , 'Zarfam' , 'RGS 003' , 'Option 500' , 'Echo' , 'Rainbow') and a highly significant correlation between MGT and this value. Of the 10 seed lots, 'Hyola 330' had the lowest final percentage germination (62%) and the highest MGT, 3.64 days. The correlation between MGT and the proportion of "normal" seedlings was also significant. 'Hyola 330' had the lowest percentage of normal seedlings (60%). A tetrazolium test showed that this lot had some dead seeds that could not germinate; some seeds were viable, but they would produce abnormal seedlings. One of the main reasons of low final germination percentage and high MGT in 'Hyola 330' was low viability of this seed lot. Mean germination time is suggested as a good indicator of seed vigor in canola.

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Mean germination time as an indicator of emergence performance in soil of seed lots of maize (Zea mays)

Cited by 71 publications

References 0 publications

Efficiency of Vigor Tests and Seed Elemental Concentrations to Estimate Field Emergence in Soybean (Glycine max)

Efficiency of Vigor Tests and Seed Elemental Concentrations to Estimate Field Emergence in Soybean (Glycine max)

Reliability of Early and Final Counts in Cold and Cool Germination Tests for Predicting Maize Seed Vigour

Can mean germination time predict seed vigor of canola (Brassica napus L.) seed lots?

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