Effect of Soil Temperature on Vegetative and Reproductive Growth and Development in Three Spanish Genotypes of Peanut (<i>Arachis hypogaea</i> L.)

Golombek, Sabine; Johansen, C.

doi:10.3146/i0095-3679-24-2-1

Cited by 31 publications

(29 citation statements)

References 6 publications

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“…In E2, the temperature was 35 • C or above for 3-8 h in a day with a total of 75 h, and in E3, temperatures were 35 • C or above for 5-8 h in a day totaling to 110 h. Thus, both E2 and E3 represented heat-stress environments and severity of stress being higher in E3, compared to E2 (Figure 1). Soil temperature is critical to pod formation and development, thus affecting pod filling and ultimately pod yield [28,29]. In the present study, variability was not significant in average minimum and maximum soil temperatures in stress and non-stress environments.…”

Section: Discussionmentioning

confidence: 59%

“…In E1, the flowering was spread over a period of 25 days with maximum temperature reaching up to 34 • C, except for three days (45,52 and 53 days after planting (DAP)) when the temperature was 35 • C or above ( Figure 1a). In E2, on all the days of the flowering period, except five days (27,28,29,30 and 43 DAP) the temperature was 35 • C or above for ca. 3-8 h in a day (Figure 1b).…”

Section: Resultsmentioning

confidence: 99%

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Efficient Partitioning of Assimilates in Stress-Tolerant Groundnut Genotypes under High-Temperature Stress

et al. 2017

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Groundnut (Arachis hypogaea L.) genotypes were assessed for pod yield and physiological parameters under heat-stress and non-stress environments. The air temperatures under heat-stress environments were 35 • C and above during flowering, and below 35 • C in non-stress environments. Variability was significant for pod yield and physiological parameters among the genotypes under heat stress. A pod yield reduction of 1.5% to 43.2% was observed under heat-stress environments. However, in heat-tolerant genotypes, either stable or increased pod yield was recorded under high-temperature stress. GJG 31, ICGV 87846, ICGV 03057, ICGV 07038 and GG 20 showed an increase in pod yield by 9.0% to 47.0% at high temperatures, with a 0.65% to 3.6% increase in pod growth rate, while ICGV 06420, ICGV 87128, ICGV 97182, TCGS 1043 and ICGV 03042 are stable for pod yield and recorded a 0.25% to 3.1% increase in pod growth rate. Pod yield, hundred-seed weight, and pod growth rate under heat stress can be used as criteria for selection of heat stress tolerant-genotypes. Based on stress tolerance indices and pod yield performance, ICGVs 07246, 07012, 06039, 06040, 03042, 07038 and 06424 were identified as heat-tolerant genotypes.

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Section: Discussionmentioning

confidence: 59%

Section: Resultsmentioning

confidence: 99%

Efficient Partitioning of Assimilates in Stress-Tolerant Groundnut Genotypes under High-Temperature Stress

et al. 2017

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“…Night temperature determines both leaflet CO 2 exchange rate, regardless of day temperature, and the efficiency of use of intercepted photosynthetically active radiation (Sinclair et al 1993;Bell et al 1994b). Low soil temperature delays pod initiation, and reduces number of mature pods/seeds, and seed weight (Golombok and Johanson 1997).…”

Section: Introductionmentioning

confidence: 99%

Phenotypic diversity in cold-tolerant peanut (Arachis hypogaea L.) germplasm

et al. 2008

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Tolerance to low temperature is an important prerequisite for optimal performance of peanut (Arachis hypogaea L.) in a number of temperate peanut-growing environments. One hundred fifty-eight peanut accessions belonging to five botanical types, known to be tolerant to low temperature (12°C) at germination, were evaluated for phenotypic diversity for 15 morphological traits in the 2001 rainy season and for 15 agronomic and two seed quality traits in the 2001 rainy and 2001/2002 post-rainy seasons. Analysis of data, using the residual maximum-likelihood approach indicated that variance components due to genotypes were significant for all traits in the rainy and for all but two traits in the post-rainy season. Clustering based on scores of nine principle components delineated four clusters. The cold-tolerant genotypes and the standard control cultivars in the four clusters differed in mean, variance, and range both during rainy and post-rainy seasons for a range of agronomic traits, indicating the diversity among the clusters. The cold-tolerant accessions were superior to control cultivars for several agronomic traits compared with their respective controls in both the rainy and post-rainy seasons, so their use in breeding should result in genetically diverse cold-tolerant high-yielding peanut cultivars.

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“…The mean optimal air temperature range for vegetative growth of peanut is between 25 and 30ºC, which is warmer than the optimum range for reproductive growth, which is between 22 and 24ºC 3,4 . Both shortand long-term exposure to air and soil temperatures above the optimum level can cause significant yield loss in peanut 5,6 . Day temperatures greater than 34ºC decreased fruit-set and resulted in fewer pods 6,7 .…”

Section: Introductionmentioning

confidence: 99%

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Pilumwong¹,

Senthong²,

Srichuwong³

et al. 2007

ScienceAsia

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Continuing increases in atmospheric carbon dioxide concentration, [CO 2 ], will likely be accompanied by global warming. Thus, it is important to quantify and understand the consequences of elevated [CO 2 ] and temperature on crop growth and yield to develop suitable varieties and agronomic management practices for future climates. The objective of this study was to investigate the growth and development responses of shoots and roots of peanut (Arachis hypogaea L.) grown under different combinations of atmospheric [CO 2 ] and temperature. The study comprised a long-term experiment, in which plants were grown in growth chambers for 112 days, and a short-term experiment, in which growing plants in rhizotrons for 17 days. In the long-term experiment, peanut cultivar Tainan 9 was grown in 20-L containers fitted with minirhizotron observation tubes at 5 cm soil depth and placed in controlled environment chambers under three levels of [CO 2 ] (400, 600, and 800 µmol mol -1 ) and two levels of air temperature (25/15ºC and 35/25ºC day/night temperature). In the short-term experiment, two peanut seedlings were grown in each of 18 acrylic rhizotrons with a 6-mm thick soil layer. Rhizotrons with plants were placed in the same growth chambers as above. At 3-to 4-day intervals, rhizotrons were placed on a flatbed scanner to collect digital images from which root length and number were measured using RMS software. At 25/15ºC, plants grown at 600 and 800 µmol mol -1 CO 2 had main stems that were 24 and 44% longer than those grown at 400 µmol mol -1 , while at 35/25ºC the main stem length was similar in all [CO 2 ] levels. At 25/15ºC, plants showed greater area and dry weight per leaf than at 35/25ºC. At harvest, high temperature significantly reduced total leaf area to 574 cm 2 for 35/ 25ºC compared with 921.2 cm 2 for 25/15ºC. Specific leaf area at low temperature was 22% less than at high temperature. Above ground biomass was increased by elevated CO 2 in both temperature treatments. At high temperature, above ground biomass was 56%, 24%, and 16% higher than at low temperature at [CO 2 ] of 400, 600 and 800 µmol mol -1 , respectively. Pod dry weight increased with increasing [CO 2 ] at 25/15ºC, but was not different among [CO 2 ] levels at 35/25ºC. At 25/15ºC, pod dry weight was 50% higher than at 35/ 25ºC. As the temperature increased from 25/15ºC to 35/25ºC, pod dry weight was reduced by 40% at 400, 53% at 600, and 54% at 800 µmol mol -1 CO 2 . High temperature produced more root length in the containers, whereas low temperature did in the rhizotrons. There were significant interactions between temperature and [CO 2 ] for their effects on main stem length and above ground biomass. High temperature enhanced growth of shoots and roots, but decreased pod dry weight. There was no interaction of elevated [CO 2 ] with higher temperature on the reproductive growth, despite a tendency for beneficial temperature by [CO 2 ] interaction on vegetative growth and total shoot dry weight. The beneficial effects of increased ...

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Effect of Soil Temperature on Vegetative and Reproductive Growth and Development in Three Spanish Genotypes of Peanut (Arachis hypogaea L.)

Cited by 31 publications

References 6 publications

Efficient Partitioning of Assimilates in Stress-Tolerant Groundnut Genotypes under High-Temperature Stress

Efficient Partitioning of Assimilates in Stress-Tolerant Groundnut Genotypes under High-Temperature Stress

Phenotypic diversity in cold-tolerant peanut (Arachis hypogaea L.) germplasm

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