Photoperiod affects the flowering time of field-sown balansa clover

Monks, David P.; Moot, Derrick J.; Scott, W. R.

doi:10.1071/cp09252

Cited by 8 publications

(4 citation statements)

References 18 publications

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“…The T b and T opt reported for balansa clover in the literature were 2.5 (Monks et al., 2009) and 15°C, ), respectively (Monks et al., 2010). The lack of data for this clover species suggests that there are little data available to support the reported cardinal temperatures.…”

Section: Resultsmentioning

confidence: 94%

Determining cardinal temperatures for eight cover crop species

Pessotto

Roberts

Bertucci

et al. 2023

Agrosystems Geosci & Env

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Growing degree days (GDD) is a tool to predict plant growth and can be adapted for use in any plant species, including cover crops. A limitation of the GDD calculation is accurate temperature parameters used to predict plant development. For most cover crop species, the cardinal temperatures are not well defined in the literature, leading to a less accurate calculation of GDD. The objective of this study was to determine the cardinal temperatures of eight cover crop species, including Austrian winter pea (Pisum sativum), balansa clover (Trifolium michelianum), barley (Hordeum vulgare), black‐seeded oats (Avena sativa), common vetch (Vicia sativa), cereal rye (Secale cereale), crimson clover (Trifolium incarnatum), and hairy vetch (Vicia villosa), using a growth chamber experiment. Seven different temperature regimes from 4 to 34°C were implemented, and the number of leaves was counted from day 0 to 21. As a result, the data were regressed to estimate the cardinal temperatures for each species. The results of this research identified base (2), optimum (3), and maximum (8) temperatures for cover crops that were not previously reported. Five cardinal temperatures determined in this study were different from what was previously recorded; base and optimum temperatures were −4.5 and 24.8°C for cereal rye, 3.9 and 26.6°C for crimson clover, and the base temperature was 3.4°C for balansa clover. The successful identification of these cardinal temperatures for cover crops will allow the development of plant growth and biomass prediction models to aid in cover crop termination decision support tools.

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Section: Resultsmentioning

confidence: 94%

Determining cardinal temperatures for eight cover crop species

Pessotto

Roberts

Bertucci

et al. 2023

Agrosystems Geosci & Env

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“…The differences in the reports of the past and the present studies 27,28 for time to flowering in dolichos bean could be attributed to differences in the range of photoperiod and temperature to which genotypes were exposed. Several reports attribute equal importance to both temperature and photoperiod in controlling the time to flowering of crops such as soybean 29 and forage legumes 25,26,30 . The greater influence of temperature than photoperiod on time to flowering of dolichos bean PS genotypes in the present study could be attributed to confounding effects of photoperiod with those of temperature on time to flowering as indicated by significant high correlation between mean day temperature and photoperiod (r = 0.75, P < 0.05).…”

Section: Photoperiod-thermal Models To Predict Time To Floweringmentioning

confidence: 99%

Photo-thermal Effects on Time to Flowering in Dolichos Bean (<i>Lablab purpureus</i> (L). Sweet) Var. Lignosus

Keerthi¹,

Ramesh²,

Byregowda³

et al. 2018

Current Science

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Prediction of time to flowering of crop plants (especially photoperiod sensitive (PS) ones) help make appropriate crop management decisions such as choosing optimum sowing and harvesting dates which in turn determine plant size and thus affect dry matter production and crop yield. Modelling time to flowering of dolichos bean, a highly PS short-day food legume crop species, indicated greater role of temperature than photoperiod in regulating time to flowering of PS genotypes. The PS and photoperiod insensitive (PIS) genotypes of dolichos bean differed for base (T b ) and optimum temperature requirement for time to flowering. However, they were comparable for critical minimum, maximum and optimum photoperiod requirement for time to flowering. Dolichos bean requires critical minimum, maximum and optimum photoperiods of 11.11, 12.28 and 12.21 h respectively, and critical minimum growing degree days of 372.05°C day -1 and optimum temperature of 23.13°C for time to flowering. Using average daily air temperature, and working backwards in time, it is possible to predict the combination of dolichos bean cultivar and sowing date that will produce ready for harvest crop on a predetermined day when fresh pod quality is optimal.

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“…Later flowering crops have prolonged vegetative growth and therefore are expected to produce more dry matter than early flowering crops. Nevertheless, the time of flowering in annual clovers is dependent on the date when the seeds are sown (Monks et al 2010;Nori et al 2014). In addition, the survival of annual species is determined by the ability of seeds to regenerate populations in the following season.…”

Section: Introductionmentioning

confidence: 99%

Dry matter yield and radiation use efficiency of four autumn sown top flowering annual clovers

Nori¹,

Moot²,

Black³

2015

Journal of NZ Grasslands

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Monocultures of arrowleaf (Trifolium vesiculosum), balansa (T. michelianum), gland (T. glanduliferum) and Persian (T. resupinatum) clovers were sown on four dates in autumn and winter 2010. Dry matter (DM) accumulation was dependent on the duration of crop growth which was influenced by the time of sowing. Autumn sown crops which flowered latest had a longer duration of vegetative growth and consequently produced the highest dry matter yields. In the establishment year, autumn sown crops produced up to 17.5 t DM/ha for balansa, 12.5 t DM/ha for Persian, 11.0 t DM/ha for gland and 9.4 t DM/ha for arrowleaf at physiological maturity (P

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Photoperiod affects the flowering time of field-sown balansa clover

Abstract: Two cultivars of balansa clover (Trifolium michelianum Savi.) were sown on eight

Cited by 8 publications

References 18 publications

Determining cardinal temperatures for eight cover crop species

Determining cardinal temperatures for eight cover crop species

Photo-thermal Effects on Time to Flowering in Dolichos Bean (<i>Lablab purpureus</i> (L). Sweet) Var. Lignosus

Dry matter yield and radiation use efficiency of four autumn sown top flowering annual clovers

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