Effect of light, gibberellic acid and abscisic acid on germination of guayule (Parthenium argentatum Gray) seed

Dissanayake, P.; George, D. L.; Gupta, Mohit

doi:10.1016/j.indcrop.2010.03.012

Cited by 32 publications

(25 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Light is an important environmental signal triggering germination or promoting dormancy, depending on the species. The results observed on Table 1 and Figure 2 diverge from other studies on others species such as that of Dissanayake et al (2010), where mean germination decreased from 63.3% in the light to 18.3% in the dark for seeds of Parthenium argentatum Gray. However, Parthenium species has small seeds; and in general, large-seed species such as andiroba, with large reserves to sustain prolonged periods of sapling growth in the dark (e.g., underground), do not require light to germinate (Milberg et al, 2000).…”

Section: Light-quality and Dark Effectscontrasting

confidence: 91%

“…Previous studies have indicated that the active form of the phytochrome may increase the embryo's growth potential and promote the activity of degrading enzymes, thus reducing the mechanical resistance of tissues near the micropyle region (De Miguel et al, 2000). The inhibitory effect of blue light on germination could be due to the low levels of red radiation, resulting in failure to activate the phytochrome (Dissanayake et al, 2010).…”

Section: Percentagementioning

confidence: 99%

See 1 more Smart Citation

The effect of light quality, temperature and substrate on seed germination and epicotyl development of Carapa guianensis, a multi-use neotropical tree

Oliveira¹,

Macedo²

2015

J. Med. Plants Res.

View full text Add to dashboard Cite

The neotropical tree Carapa guianensis has several economic and medicinal applications, and is valued for both the high-quality oil extracted from its seeds and its mahogany-like wood. Recruitment and expansion of C. guianensis depend mainly on sexual reproduction. However, germination conditions for C. guianensis are poorly studied. This makes the understanding of its germination requirements vital for conservation and management. Laboratory studies were conducted to investigate the effects of three environmental variables (temperature, substratum and light quality) on the seed germination of C. guianensis. Our results showed that for seed germination, a temperature range of 30 to 40°C was the most favorable, and fertilized soil and water were more favorable than sand. Seeds in the dark germinated in higher percentages and in a shorter time. Removal of the seed coat accelerated the germination process for all conditions tested, except for green and red light, and darkness. Green and blue light retarded and red light stimulated seed germination. Plants under green light always grew taller than in the other treatments. Plants grown under blue light and in the dark showed the same profile after four weeks. Compared with sand and water, fertilized soil was the best substrate for epicotyl development. It was suggested that measurement of light quality can be used to estimate forest stand density, impact of silvicultural treatment and structural impact of anthropogenic effects on tropicalforest diversity.

show abstract

Section: Light-quality and Dark Effectscontrasting

confidence: 91%

Section: Percentagementioning

confidence: 99%

The effect of light quality, temperature and substrate on seed germination and epicotyl development of Carapa guianensis, a multi-use neotropical tree

Oliveira¹,

Macedo²

2015

J. Med. Plants Res.

View full text Add to dashboard Cite

show abstract

“…GA 3 treatment showed the highest promoting effect on seed germination and seedling growth in Capparis spinosa at 360.9 μM 7 , Trigonella foenum-graecum at 180.4 μM 11 , and 721.8–1443.5 μM for Parthenium argentatum Gray 39 . The yield attributes of Helianthus annuus L. 19 and Triticum aestivum L. 12 were also increased by seed treatment with 10–100 μM GA 3 for 8 h. In previous studies on L. chinensis , GA spraying at various growth stages remarkably promoted plant growth and grass production 40–42 .…”

Section: Discussionmentioning

confidence: 96%

A Multi-year Beneficial Effect of Seed Priming with Gibberellic Acid-3 (GA3) on Plant Growth and Production in a Perennial Grass, Leymus chinensis

Zhao

Ning

et al. 2018

Sci Rep

View full text Add to dashboard Cite

Seed priming is a widely used technique in crops to obtain uniform germination and high-quality seedlings. In this study, we found a long-term effect of seed priming with gibberellic acid-3 (GA3) on plant growth and production in Leymus chinensis. Seeds were germinated on agar plates containing 0–200 μM GA3, and the germinated seedlings were transplanted to clay planting pots and grown for about one year. The clonal tillers grown from the mother plants were transplanted to field conditions in the second year. Results showed that GA3 treatment significantly increased seed germination rate by 14–27%. GA3 treatment also promoted subsequent plant growth and biomass production, as shown by a significant increase in plant height, tiller number, and fresh and dry weight in both pot (2016) and field (2017) conditions. It is particularly noteworthy that the growth-promoting effect of a single seed treatment with GA3 lasted for at least two years. In particular, GA3 treatment at 50 μM increased aboveground fresh and dry weight by 168.2% and 108.9% in pot-grown conditions, and 64.5% and 126.2% in field-grown conditions, respectively. These results imply a transgenerational transmission mechanism for the GA-priming effect on clonal offspring growth and biomass production in L. chinensis.

show abstract

“…The coloured light was obtained by covering Petri dishes with two layers of coloured cellophane filter sheets (Dissanayake et al 2010, Galindo et al 2012) of red, blue, green and a combination of blue and red. To test germination in the darkness, Petri dishes were covered with two sheets of aluminium foil (Souza et al 2013).…”

Section: Light Quality Experimentmentioning

confidence: 99%

Effect of light quality on Tabebuia rosea seed germination

Basto

Ramírez

2014

Univ. Sci.

View full text Add to dashboard Cite

Tabebuia rosea germination capacity and rate have been examined under light and dark conditions. However, seeds responses to light quality, in particular to short and mid-wavelengths, are not well known. We hypothesized that short wavelengths would have a positive effect on T. rosea germination. The effects of short, mid and long-wavelengths on germination capacity, rate (germination rate index, germination rate R50, a devised index of germination rate R50´ and peak value), mean daily germination and germination value were evaluated. Light quality had little effect on germination capacity; it was reduced only in darkness. Seeds under short and midwavelengths germinated faster (germination rate) than under any other light treatments. We concluded that although T. rosea seeds respond to all light quality treatments, the short and mid-wavelengths are the cue for increasing germination speed. For synchronizing germination, short and mid-wavelengths transmitted by red cellophane paper can be used as a pre-germinative treatment for restoration and silvicultural purposes.

show abstract

Effect of light, gibberellic acid and abscisic acid on germination of guayule (Parthenium argentatum Gray) seed

Cited by 32 publications

References 25 publications

The effect of light quality, temperature and substrate on seed germination and epicotyl development of Carapa guianensis, a multi-use neotropical tree

The effect of light quality, temperature and substrate on seed germination and epicotyl development of Carapa guianensis, a multi-use neotropical tree

A Multi-year Beneficial Effect of Seed Priming with Gibberellic Acid-3 (GA3) on Plant Growth and Production in a Perennial Grass, Leymus chinensis

Effect of light quality on Tabebuia rosea seed germination

Contact Info

Product

Resources

About