Temperature Effects on Germination of Birdsfoot Trefoil and Seombadi<sup>1</sup>

Hur, S. N.; Nelson, C. J.

doi:10.2134/agronj1985.00021962007700040013x

Cited by 14 publications

(10 citation statements)

References 18 publications

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“…Seedling emergence The effect of soil temperature on emergence of sheep's burnet agreed with the findings from studies on other species where temperature frequently had a major influence on the proportion of seeds germinating and/or emerging (Woods & MacDonald 1971;McElgunn 1973;Hur & Nelson 1985, Charlton et al 1986Hampton et al 1987). The higher emergence of sheep's burnet at Flock House than at Riverside indicated that it was more sensitive to cooler temperatures than the two legumes and this may lead to differences in subsequent establishment, ground cover, and forage yield.…”

Section: Discussionsupporting

confidence: 75%

“…The effect of temperature on emergence rate of sheep's burnet was undocumented previously but the relationship is well known for lucerne (Hampton et al 1987) and birdsfoot trefoil (Woods & MacDonald 1971;Hur & Nelson 1985). The results suggested that sowing sheep's burnet into increasingly warm soils, by selection of appropriate locations and/or sowing times, would hasten sward establishment and associated ground cover.…”

Section: Discussionmentioning

confidence: 89%

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Establishment and growth of sheep's burnet in the lower North Island of New Zealand

Douglas

Robertson

Chu

et al. 1990

New Zealand Journal of Agricultural Research

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Spring establishment and herbage production of sheep's burnet (~ang~isorba mino: ssp. muricata) were compared with blf?sfoot tre~011 (Lotus corniculatus) and lucerne (Medicago sativa) at Riverside in the lower North Island of New Zealand. The trial includedbinary mixturesof sheep's burnet and the legumes. Emergence of similar swards was also investigated at Flock House, a warmer site, in the lower North Island. Emergence of the three species was similar at each site but for sheep's burnet at Flock House (66.2%), it was greater than that at Riverside (26.5%). Both legumes emerged faster than sheep's burnet with lucerne being the quickest. The results suggested that sheep's burnet is best sown alone or with other slowly emerging species. Early foliar dry weight and leaf area of sheep's burnet and lucerne were similar and greater than that of birdsfoot trefoil. However, over three summer mowings (7-8 em high), total herbage mass for all pure and mixed swards was similar and averaged 6.3 t DM/ha. Sheep's burnet provided useful ground cover and forage mass.

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Section: Discussionsupporting

confidence: 75%

Section: Discussionmentioning

confidence: 89%

Establishment and growth of sheep's burnet in the lower North Island of New Zealand

Douglas

Robertson

Chu

et al. 1990

New Zealand Journal of Agricultural Research

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“…Or, alternatively, perhaps 5°C is too close to the base temperature of germination to allow discrimination based on genetic differences. Hur and Nelson (1985) calculated the base temperature for germination of 'MO-20' birdsfoot trefoil as 4.7°C. It was hoped that selection for germination and growth at cold or cool temperatures would aid in development of trefoil which would establish faster during cool conditions in the spring.…”

Section: Discussionmentioning

confidence: 99%

In vitro selection for improved seedling vigour in birdsfoot trefoil (Lotus corniculatus L.)

McLean¹,

Nowak²

1997

Can. J. Plant Sci.

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McLean, N. L. and Nowak, J. 1997. In vitro selection for improved seedling vigour in birdsfoot trefoil (Lotus corniculatus L.). Can. J. Plant Sci. 77: 385-390. Establishment of productive stands of birdsfoot trefoil (Lotus corniculatus L.) is often difficult due to poor seedling vigour. Objectives of this study were to evaluate the relative effectiveness of in vitro selection conditions for seedling vigour and to choose the best lines for further evaluation. Birdsfoot trefoil seedlings from cvs. Leo and Upstart were selected on the basis of in vitro rate of germination at 5, 12 and 20°C and subsequent seedling growth at 20°C. Two cycles of recurrent selection were carried out. Progeny from both cycles of selection were evaluated under controlled and field conditions. In general, selection temperatures did not significantly affect emergence, individual shoot dry matter production or total shoot dry matter production. Emergence and total shoot dry matter yield were higher for selections within cv. Upstart than for selections within cv. Leo. Seedling vigour of cycle-2 selections was not superior to cycle-1 selections. Failure to make gains during the second cycle of selection is believed to be due to seed sterilization procedures during cycle-2 selection. Germplasms chosen for further evaluation include the 12°C and 20°C cycle-1 selections and the 20°C cycle-2 selection from cv. Upstart.

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“…Tb is the base temperature of 5˚C, which was assumed to be the same as that determined for Lotus corniculatus [20]. Negative values were not included in the calculation [21].…”

Section: Reproductive Developmentmentioning

confidence: 99%

Reproductive Development of <i>Lotus tenuis</i> (Fabaceae) Crop Defoliated at Different Times and Intensities

Vignolio¹,

Cambareri²,

Petigrosso³

et al. 2016

AJPS

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Lotus tenuis forage yield has been quantified under defoliation conditions in pastures, grasslands and under dual-purpose production of both livestock forage and seeds. However, little is known about the effects of defoliation management on L. tenuis flower and pod production and subsequent seed yield. Two field experiments were conducted to study the response of L. tenuis to defoliation at different flowering stages and intensities. In Experiment 1, crops were defoliated at the beginning of the flowering (DBF), mid-flowering (DMF) or full flowering (DFF). In Experiment 2, defoliation was in vegetative stage at low (LDI) or high (HDI) intensities. Defoliation in Experiment 1 neither affected plant cover nor the photosynthetically active radiation intercepted by the crop during pod production. There were less umbels with dehiscent (shattered) pods in the DFF treatment than in Control, DBF and DMF treatments. Flower peak occurred first in the Control, DBF and DMF treatments, and eight days later in DFF plots, however, seed yield was not affected (1324 ± 32.8 kg·ha −1 ). Defoliation intensity did not affect seed yield (962 ± 25.9 kg•ha − 1 ) because of self-compensation which increased harvest index in HDI (14.5% ± 0.6%) compared to the Control and LDI (12.0% ± 0.3%) treatments. Plant survival was not affected by defoliation treatments in any of the experiments. Flowering can be synchronized through defoliation. The blooming of large numbers of flowers in a short time was achieved, reducing the number of shattered pods. Compensatory responses through plant plasticity conferred L. tenuis the ability to overcome defoliation without affecting seed yield. Lotus tenuis defoliation as management tool will be considered in future researches because it is possible to harvest forage and to increase seed yield through a reduction of shattered pods. O. R. Vignolio et al.

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Temperature Effects on Germination of Birdsfoot Trefoil and Seombadi¹

Cited by 14 publications

References 18 publications

Establishment and growth of sheep's burnet in the lower North Island of New Zealand

Establishment and growth of sheep's burnet in the lower North Island of New Zealand

In vitro selection for improved seedling vigour in birdsfoot trefoil (Lotus corniculatus L.)

Reproductive Development of <i>Lotus tenuis</i> (Fabaceae) Crop Defoliated at Different Times and Intensities

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Temperature Effects on Germination of Birdsfoot Trefoil and Seombadi1

Cited by 14 publications

References 18 publications

Establishment and growth of sheep's burnet in the lower North Island of New Zealand

Establishment and growth of sheep's burnet in the lower North Island of New Zealand

In vitro selection for improved seedling vigour in birdsfoot trefoil (Lotus corniculatus L.)

Reproductive Development of &lt;i&gt;Lotus tenuis&lt;/i&gt; (Fabaceae) Crop Defoliated at Different Times and Intensities

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Product

Resources

About

Temperature Effects on Germination of Birdsfoot Trefoil and Seombadi¹

Reproductive Development of <i>Lotus tenuis</i> (Fabaceae) Crop Defoliated at Different Times and Intensities