Single and Interactive Effects of Temperature and Light Quality on Four Canola Cultivars

Slauenwhite, Kuranda L. I.; Qaderi, Mirwais M.

doi:10.1111/jac.12014

Cited by 15 publications

(16 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, our results agree with other studies previously reported in Brassica species. For example, Slauenwhite and Qaderi () show a reduction of the biomass content in an evaluation of four canola cultivars under heat conditions without further inhibition of the PSII activity. These authors postulated that this reduction in biomass could be due to the reallocation of photosynthates towards metabolic pathways that help plants to cope with temperature stress.…”

Section: Resultsmentioning

confidence: 99%

Suitability of A European Nuclear Collection of Brassica oleracea L. Landraces to Grow at High Temperatures

Rodríguez

Soengas

Cartea

et al. 2013

J Agronomy Crop Science

View full text Add to dashboard Cite

Statistical models predict that global warming will have a negative impact in crop yields in the next decades. Especially vulnerable are winter crops such as kales or cabbages (Brassica oleracea L.). We evaluated the impact of high temperatures in morphological and biochemical traits of a B. oleracea core collection during early development. When grown at 30 °C, plants showed a reduction in chlorophyll content, early vigour and biomass compared with values observed on plants grown at 20 °C. Likewise, the total content of glucosinolates shows a reduction at high temperatures. The alboglabra group showed the best general performance at 30 °C for both morphological traits and glucosinolate content. Based on a cluster analysis, we selected four populations (MBG0072, MBG0464, MBG0535 and HRIGRU5555) as the most promising to be used in further breeding programs for heat tolerance.

show abstract

Section: Resultsmentioning

confidence: 99%

Suitability of A European Nuclear Collection of Brassica oleracea L. Landraces to Grow at High Temperatures

Rodríguez

Soengas

Cartea

et al. 2013

J Agronomy Crop Science

View full text Add to dashboard Cite

show abstract

“…In addition, elevated temperature reduced F ′ v / F ′ m measurements on the canola cultivars used (Qaderi et al ., ). However, consistent with the present findings, Slauenwhite & Qaderi () found that plants grown at increased temperatures have higher F ′ v / F ′ m values, indicating reduced damage to photosystem II. The differences between some of these findings and those of the current study might be due to greater overnight temperatures (24–26 °C) used in previous studies as opposed to 18 °C in the current study and/or different canola cultivars/plant growth stages used in different studies.…”

Section: Discussionmentioning

confidence: 99%

Quantitative resistance against an isolate of Leptosphaeria maculans (blackleg) in selected Canadian canola cultivars remains effective under increased temperatures

Hubbard

Peng

2018

Plant Pathology

View full text Add to dashboard Cite

Blackleg disease, caused by Leptosphaeria maculans, is a serious threat to canola production in western Canada. While specific major resistance (R) genes can be effective, they can also be eroded rapidly by a shift in pathogen race composition. Quantitative resistance (QR) has the potential to provide more durable, if less complete, protection. However, the effectiveness of QR may vary widely in the field. It has long been suspected that elevated temperatures may limit the expression of QR. To test this hypothesis, the infection development of blackleg was assessed on three common Canadian canola cultivars (74‐44 BL, PV 530 G and 45H29) showing QR, with and without a heat treatment of 7 h daily exposure to 32 °C for 1 week during rosette to early flowering under controlled environment conditions. The impact of elevated temperature on the susceptibility to blackleg was compared with that of a moderate temperature with a 22 °C daytime high. A susceptible cultivar, Westar, was used as a control. When data from both temperatures were pooled, all three QR cultivars showed lower blackleg severity relative to Westar. Elevated temperatures increased blackleg severity in Westar only (in terms of the stem‐lesion length from the inoculation of the first true‐leaf petiole in trials involving Westar and 74‐44 BL) and in pooled data for disease severity index in trials involving Westar, PV 530 G and 45H29. These findings suggest that the QR traits in 74‐44 BL, PV 530 G and 45H29 are useful for blackleg management in western Canada, especially under warmer growing conditions when plants are at the rosette to early flowering stages.

show abstract

“…In total, we measured the effects on 24 parameters (Tables 1, 2, 3). Although the effects of temperature and light quality on plants have been extensively studied, their combined effects have received limited attention (Weinig 2000;Franklin 2009;Kurepin et al 2011;Slauenwhite and Qaderi 2013). As global warming has commenced, it is important to determine how weeds, such as A. theophrasti, will perform when light quality and temperature change.…”

Section: Discussionmentioning

confidence: 99%

“…Although many studies have shown the independent effects of light quality (Smith 1982) and temperature (Qaderi and Reid 2009) on plant growth and physiology, few studies (e.g., Kurepin et al 2011;Slauenwhite and Qaderi 2013) have considered the interactions of these factors, especially their effects on weeds (Weinig 2000). We were interested in the independent and interactive effects of light quality and temperature on the growth and physiological characteristics of velvetleaf (Abutilon theophrasti).…”

Section: Introductionmentioning

confidence: 99%

Does temperature regulate light quality effects on Abutilon theophrasti?

et al. 2015

View full text Add to dashboard Cite

Although the separate effects of light quality and temperature on plants have been studied extensively, their interactive effects have received little attention. We studied the combined effects of these two factors on the growth and physiology of velvetleaf (Abutilon theophrasti). Plants were grown under two temperature regimes (24°/20°C and 30°/26°C; 16 h day/8 h night) and three red:far-red (R:FR) light ratios (0.68, low; 1.16, normal; and 4.63, high) in controlled-environment chambers. Temperature significantly affected 3 plant parameters, light quality 17 parameters and the interaction of these two factors only 1 parameter. Plants that were grown under higher temperatures had lower water-use efficiency and chlorophyll a:b ratio, but larger root systems, than those under lower temperatures. Compared to growth at normal R:FR, plants at low R:FR were taller with higher leaf moisture, fewer leaves, reduced total biomass, lower specific leaf mass (SLM) and leaf mass ratio (LMR), lower CO 2 assimilation and light-adapted chlorophyll fluorescence, and lower chlorophyll concentration and Chl a:b ratio. Plants at low and high R:FR had lower root dry mass, SLM, LMR and chlorophyll concentration than those at normal R:FR. We found that temperature had little effect on A. theophrasti and did not regulate light quality effects on this species; thus a small degree of global warming will likely have no major effects on this species, which will probably thrive well in the future climate.

show abstract

Single and Interactive Effects of Temperature and Light Quality on Four Canola Cultivars

Cited by 15 publications

References 35 publications

Suitability of A European Nuclear Collection of Brassica oleracea L. Landraces to Grow at High Temperatures

Suitability of A European Nuclear Collection of Brassica oleracea L. Landraces to Grow at High Temperatures

Quantitative resistance against an isolate of Leptosphaeria maculans (blackleg) in selected Canadian canola cultivars remains effective under increased temperatures

Does temperature regulate light quality effects on Abutilon theophrasti?

Contact Info

Product

Resources

About