Seed Size Variation and its Effects on Germination and Seedling Vigour in Rice

Roy, S. K. S.; Hamid, Abdul; Miah, MG; Hashem, Abeer

doi:10.1111/j.1439-037x.1996.tb00449.x

Cited by 51 publications

(45 citation statements)

References 4 publications

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“…This is in line with the reports of [12] in wheat cultivars and [18] in rice. These researchers stated that large seeds have slower germination rates than small seeds.…”

Section: A Germination and Emergencesupporting

confidence: 80%

Effects of Seed Size and Sowing Depth on Seed Germination and Seedling Growth of Telfairia Occidentalis (Hook F.)

2016

IJACEBS

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Abstract---A split plot experiment in a randomized complete block design with three replications was used to study the effect of three (small -10g, medium -22g, and large -32g ) seed sizes and four (3cm, 6cm, 9cm and 12cm) sowing depths on the germination and growth of Telfairia occidentalis at Uturu, Abia State, Nigeria. Small and large seeds had significantly the highest and least germination rates respectively. Small seeds gave significantly the highest leaf number plant -1 , leaf area, root length, relative growth rate and leaf,stem and root dry weights. Large seeds had statistically the least result of the above parameters. However, large seeds had the highest (P 0.05) root-shoot ratio and leaf area ratio. Seeds sown at 3cm and 6cm depths germinated faster than seeds sown at 9cm and 12cm depths. Seeds sown at 3cm depths had the highest significant percentage germination, plant heights, root shoot ratio and leaf area. However, seeds sown at 9cm depth gave statistically the highest root lengths, root collar diameter and leaf diameter. In terms of plant biomass, 12cm and 6cm sowing depths gave significantly the highest and least leaf and stem dry weights respectively. The 9cm and 12cm sowing depths had higher (P 0.05) root dry weights than the 3cm and 6cm sowing depths. At the 12 th week of the study 3cm and 12cm gave significantly the highest and least relative growth rates respectively. In terms of seed size and sowing depths treatment interactions, large seeds in all the sowing depths had the highest (P 0.05) root shoot ratios. Small and large seeds in all the sowing depths gave significantly and respectively the highest and least relative growth rates, leaf number, root, stem and leaf dry weights. Small seeds at the various sowing depths also had significantly the highest root lengths and plant heights. This study recommends the use of small seed sizes (10g) and 3cm sowing depth for production of T. occidentalis.

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“…This is in line with the reports of [12] in wheat cultivars and [18] in rice. These researchers stated that large seeds have slower germination rates than small seeds.…”

Section: A Germination and Emergencesupporting

confidence: 80%

Effects of Seed Size and Sowing Depth on Seed Germination and Seedling Growth of Telfairia Occidentalis (Hook F.)

2016

IJACEBS

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“…The positive and significant correlation found between the mass of grain and the germination percentage of red and Tox rice varieties corroborate the results obtained by Roy et al (1996), who showed that the rate of germination and the vigor increase with an increase in the size (weight) of rice seeds; suggesting therefore sorting of heavy grains for a good field establishment. Teng et al (1992) support this argument by stating that, the best selection criterion for the strength of rice seed is its mass.…”

Section: Discussionsupporting

confidence: 78%

Effects of extracts of Oxalis barrelieri L. and Cymbopogon citratus stapf, coupled with NaCl sorting on; seed health, germination and seedlings vigor of rice (Oryzae sativa L).

Romain¹,

Julienne²,

Blaise³

et al. 2018

Afr. J. Agric. Res.

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The extracts of Oxalis barrelieri and Cymbopogon citratus were tested for their antifungal activity against Bipolaris oryzae and Fusarium moniliforme, and use as seed treatment coupled with NaCl treatment to improve the seed germination and the seedlings vigor of treated rice seeds. The significance of the inhibitory activity of the plant extracts against B. oryzae and F moniliforme was type of extract and concentration dependent. The ethanolic extract of C. citratus at 10000 ppm, showed the highest inhibitory effect, with 58.51 and 55.9% growth inhibition of F. moniliforme and B. oryzae, respectively. The rice seeds sorted in 20% NaCl solution had a greater mass (quantify), a germination percentage of 12.5% higher as compared to seeds sorted in with water and 19.5% higher than that of unsorted seeds. A moderate positive and significant linear relationship (Rho (78) = 0.427 **, p <0.01) was shown between weight and germination of rice seeds. The ethanol extracts of O. barrelieri and C. citratus stimulated rice seed germination at comparable degree; 15.15 to 22.06% from the top of paper method and 11.1 to 16.2% from sand method in green house trials. Rice seed treatments at 1% concentration exhibited the best germination and reduced the infestation of B. oryzae and F. moniliforme by 25.25 and 9.83%, respectively. Stressed seeds treated with plant extracts showed less pronounced decrease (5.08 %) in germination compared to untreated stressed seed (25.5%). Sorting of rice seeds with 20% NaCl and/or treatment with ethanol extracts of O. barrelieri and C. citratus showed potential green alternative to reduce seed-borne infestation, improvement of rice vigor and seed germination.

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“…The effects of seed size on germination and subsequent yield also vary with some showing increased yield with seed size [9] and others showing no effect [10]. It has been reported that seed size correlates with seed vigor and that large seeds tend to produce more vigorous seedlings and better stand [11,12] and more likely to emerge from greater depth than those from small seeds [13]. Plants from larger seeds have been reported to produce bigger seed yield than those from small kernels [14,15].…”

Section: Introductionmentioning

confidence: 99%

Effect of Priming and Seed Size on Germination and Emergence of Six Food-Type Soybean Varieties

Kering

Zhang

2015

International Journal of Agronomy

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Soybean (Glycine max (L.) Merr.), a good source of protein and oil, is used to produce nutritious isoflavone-rich soybean-based foods. The objectives of this study were (i) to determine the germination difference among soybean seeds in various seed sizes and (ii) to evaluate effects of seed pretreatment on germination and seedling emergence. Six varieties of different seed size class were used: (i) small size (MFS-561 and V08-4773), (ii) medium size (Glen and V03-47050), and (iii) large size (MFL-159 and V07-1897). Pregermination treatments include 0, 5, or 10 hours soaking and germinating/planting with or without nitrogen fertilizer. Large seed size varieties showed low germination rate and N addition caused the least reduction in germination in these seeds during the first 24 hours. While N had no effect on seed germination after 72 hours, growth in N treated seed was low. Seedling emergence was comparable across varieties in 2013 and water priming and N application had no effect. However, while varieties did not differ in final emergence for nonprimed seeds in 2014, water priming led to a high reduction in seedling emergence of large seed varieties in this study. Application of N fertilizer had no effect on seedling emergence in field experiments.

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Seed Size Variation and its Effects on Germination and Seedling Vigour in Rice

Cited by 51 publications

References 4 publications

Effects of Seed Size and Sowing Depth on Seed Germination and Seedling Growth of Telfairia Occidentalis (Hook F.)

Effects of Seed Size and Sowing Depth on Seed Germination and Seedling Growth of Telfairia Occidentalis (Hook F.)

Effects of extracts of Oxalis barrelieri L. and Cymbopogon citratus stapf, coupled with NaCl sorting on; seed health, germination and seedlings vigor of rice (Oryzae sativa L).

Effect of Priming and Seed Size on Germination and Emergence of Six Food-Type Soybean Varieties

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