Differences in the Interacting Effects of Light and Temperature on Growth of Four Species in the Vegetative Phase

Rajan, A. K.; Betteridge, Brenda; Blackman, G. E.

doi:10.1093/oxfordjournals.aob.a084693

Cited by 36 publications

(17 citation statements)

References 8 publications

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“…Over the range 25 to 15 °C the fall in RGR was associated with a fall in LAR, and ULR showed less response to temperature. A similar pattern of stability in ULR over a range of temperatures about the optimum, together with a strong temperature response in LAR, has been reported for several species (Warren Wilson, 1966;Terry, 1968;Elias & Causton, 1975;Potter & Jones, 1977;Woodward, 1979), although Rajan et al (1973) did conclude that ULR was strongly affected by temperature. In addition there was little evidence of genotypic differences in ULR.…”

Section: ) 01supporting

confidence: 80%

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GENOTYPIC VARIATION IN THE RESPONSE TO SUB‐OPTIMAL TEMPERATURES OF GROWTH IN TOMATO (LYCOPERSICON ESCULENTUM MILL.)

Paul

Hardwick²,

Parker

1984

New Phytologist

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SUMMARYA growth analysis of plants raised under controlled environment conditions was used to examine the response to temperature of five contrasting tomato cultivars bred for outdoor production. Curves were fitted to the data of dry weight and leaf area and, to compensate for ontogenetic drift, instantaneous values of growth analysis parameters were calculated from these curves at a specific growth stage. Differences in relative growth rate which could be exploited in a breeding programme were not detected, though there were large differences in the components of relative growth rate. These were, however, compensatory within a cultivar. It was concluded that in order to select a genotype with improved growth rate it would be necessary to disrupt the compensation mechanism between the components of relative growth rate.

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Section: ) 01supporting

confidence: 80%

“…In attempts to overcome this problem several methods have been used. For example, maximum RGRs have been compared (Rajan, Betteridge & Blackman, 1973;Grime & Hunt, 1975). The maximum RGR occurs at an early stage, and in this experiment it occurred before the start of the harvesting period under the higher temperature regimes.…”

Section: ) 01mentioning

confidence: 99%

GENOTYPIC VARIATION IN THE RESPONSE TO SUB‐OPTIMAL TEMPERATURES OF GROWTH IN TOMATO (LYCOPERSICON ESCULENTUM MILL.)

Paul

Hardwick²,

Parker

1984

New Phytologist

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“…Data for growth of sunflower seedlings ( Helianthus annuus L.) ‘Pole Star’ came from a study of the light and temperature response during vegetative growth of four species (Rajan et al . 1973).…”

Section: Experimental Methodsmentioning

confidence: 99%

“…The RGRs over the growth interval were reported in their fig. 11 (Rajan et al . 1973), and final LARs at the end of the growth interval in their fig.…”

Section: Experimental Methodsmentioning

confidence: 99%

A carbohydrate supply and demand model of vegetative growth: response to temperature and light

Gent

Seginer

2012

Plant Cell & Environment

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Photosynthesis is the limiting factor in crop growth models, but metabolism may also limit growth. We hypothesize that, over a wide range of temperature, growth is the minimum of the supply of carbohydrate from photosynthesis, and the demand of carbohydrate to synthesize new tissue. Biosynthetic demand limits growth at cool temperatures and increases exponentially with temperature. Photosynthesis limits growth at warm temperatures and decreases with temperature. Observations of tomato seedlings were used to calibrate a model based on this hypothesis. Model predictions were tested with published data for growth and carbohydrate content of sunflower and wheat. The model qualitatively fitted the response of growth of tomato and sunflower to both cool and warm temperatures. The transition between demand and supply limitation occurred at warmer temperatures under higher light and faster photosynthesis. Modifications were required to predict the observed non-structural carbohydrate (NSC). Some NSC was observed at warm temperatures, where demand should exceed supply. It was defined as a required reserve. Less NSC was found at cool temperatures than predicted from the difference between supply and demand. This was explained for tomato and sunflower, by feedback inhibition of NSC on photosynthesis. This inhibition was much less in winter wheat.

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“…Indeed there appear to be few data o n the effects o f temperature per se on the growth a n d canopy development o f sunflower aside from those o n phenological development (e.g. G o y n e et al 1977; Marc a n d Palmer 1982) a n d o n seedling performance (Rajan et al 1973).…”

Section: Introductionmentioning

confidence: 99%

Canopy Development, Light Interception and Seed Production in Sunflower as Influenced by Temperature and Radiation

Rawson¹,

Dunstone²,

Long³

et al. 1984

Functional Plant Biol.

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Well watered mini-crops of sunflower were grown either in summer or winter in glasshouses maintained under five temperature regimes and a 16 h photoperiod. A field crop was grown concurrently with the summer glasshouse study.Summer radiation (25 5 MJ day-') increased the size and/or number of many of the variables measured compared with winter radiation (9.5 MJ day-'). However, there was interaction between light and temperature upon phenological development, plant height, leaf number and harvest index. Seed production declined at temperatures above 18/13"C in summer and above 24/19"C in winter radiation, but fatty acid composition of the seed oil changed progressively with increasing temperature and was unaffected by radiation.Leaf area per plant increased faster under summer than winter radiation and in almost all temperature regimes reached considerably higher final values which resulted in a greater percentage of the incident radiation being intercepted. Temperature, though affecting the growth patterns and final areas of individual leaves in the canopies, did not alter the relationship between leaf area index and radiation interception. The light extinction coefficient changed with leaf area index and differed between summer and winter.Biomass per plant at maturity (B, g) was best related to radiation interception up to anthesis (I, MJ m-?), such that B = -234+541ogJ, r2 = 0.91, but seed number (S) was correlated similarly with radiation interception and with the number of degree days (D) accumulated between floral initiation and anthesis (S = 1137+0~0051-0.7620, R2 = 0.90). Yield (Y, g per plant) was dependent on seed number, mean temperature ( T ) and radiation intercepted between anthesis and maturity, and the leaf area present at anthesis. However, over 97% of the variation in yield could be accounted for by the temperature and radiation factors in the manner Y = 39,07+0,0471-1 .26T. Harvest index and yield were not correlated for the cultivar examined.

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Differences in the Interacting Effects of Light and Temperature on Growth of Four Species in the Vegetative Phase

Cited by 36 publications

References 8 publications

GENOTYPIC VARIATION IN THE RESPONSE TO SUB‐OPTIMAL TEMPERATURES OF GROWTH IN TOMATO (LYCOPERSICON ESCULENTUM MILL.)

GENOTYPIC VARIATION IN THE RESPONSE TO SUB‐OPTIMAL TEMPERATURES OF GROWTH IN TOMATO (LYCOPERSICON ESCULENTUM MILL.)

A carbohydrate supply and demand model of vegetative growth: response to temperature and light

Canopy Development, Light Interception and Seed Production in Sunflower as Influenced by Temperature and Radiation

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