Impact of heat stress on potato (
            <i>Solanum tuberosum</i>
            L.): present scenario and future opportunities

Singh, Baljeet; Kukreja, Sarvjeet; Goutam, Umesh

doi:10.1080/14620316.2019.1700173

Cited by 39 publications

(28 citation statements)

References 194 publications

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“…Under such situations, there is plenty of scope to find genotypes that have the innate capability of producing relatively higher yield under heat stress conditions. To develop heat stress-tolerant cultivars, efforts were initiated in the sub-continent [13][14][15] and the impacts of high temperatures on potato production will increase over the next decades, due to climate change and the extension of cultivation in heat prone areas [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Selection of Suitable Potato Genotypes for Late-Sown Heat Stress Conditions Based on Field Performance and Stress Tolerance Indices

et al. 2021

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International Potato Center (CIP), -bred potato genotypes produce various yields under heat stress conditions due to being sown late. To explore options for achieving this, a replicated experiment was conducted at the field of Tuber Crops Research Sub-Centre, Bangladesh Agricultural Research Institute, Bogura, Bangladesh to evaluate the performance of fourteen CIP-bred potato genotypes with two controls (Asterix and Granola). The experiment was laid out in a split-plot design with three replications. Several indices were applied to find out the suitable genotypes under heat stress. The plant height increased by 34.61% under heat stress, which was common in all the potato genotypes. Similarly, other yield-participating characters like stem per hill, canopy coverage (%), plant vigor, and tuber number per plant were also increased under heat stress conditions. However, the tuber yield was decreased by 6.30% and 11.41%, respectively when harvested at 70 and 90 days after plantation. Moreover, “CIP-203” yielded the highest (40.66 t ha-1) in non-stressed whereas, “CIP-118” yielded the highest (32.89 t/ha) in stressed conditions. Likewise, the bred “CIP-218” and “CIP-118” performed better under both growing conditions and yielded >35.00 t ha-1. According to a rank-sum test, among the fourteen potato genotypes, “CIP-218”, “LB-7”, “CIP-118”, “CIP-232”, and “CIP-112” were selected as heat-tolerant potatoes and can grow in both growing conditions with higher yield potential.

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Section: Introductionmentioning

confidence: 99%

Selection of Suitable Potato Genotypes for Late-Sown Heat Stress Conditions Based on Field Performance and Stress Tolerance Indices

et al. 2021

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“…Potato grows optimally in cool climates (15 to 22 °C) whereas its growth is inhibited in warm or hot environments [ 10 , 21 , 31 ]. Heat stress can exert detrimental effects on many growth and development processes, so the current studies, involving 2-week treatments at two discrete developmental stages, provide information on the relative susceptibilities of various developmental processes in tubers.…”

Section: Discussionmentioning

confidence: 99%

“…Evaluations of simulation models for potato agronomic responses and global climate change indicate that model variation is modest for predicted CO 2 but is particularly uncertain for temperature [ 5 ]. This suggests that more knowledge about the nature of heat susceptibility in potato would be valuable in guiding future efforts to improve the crop genetically and to optimize management [ 12 , 21 , 53 ]. In regard to whole plant DMAR, the current studies indicate that the tuber initiation stage may be somewhat more sensitive to stress than tuber bulking.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, studies to determine the cause of poor yield of heat-susceptible potato genotypes grown at high temperature suggest it is related to inhibited photosynthesis and insufficient availability of the transportable sugar, sucrose [ 19 ]. In addition, warm temperature can have direct effects that inhibit tuber initiation and growth [ 20 , 21 ], thereby diverting photosynthate from tubers to shoots [ 15 , 22 , 23 ]. High temperature in the tuber zone inhibits tuber development [ 24 ], and studies have indicated that below-ground high temperature has greater effects than above-ground temperature due to inhibition of tuber development and sink strength, which shifts partitioning to above-ground shoots [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

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Role of Tuber Developmental Processes in Response of Potato to High Temperature and Elevated CO2

Chen

Setter

2021

Plants

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Potato is adapted to cool environments, and there is concern that its performance may be diminished considerably due to global warming and more frequent episodes of heat stress. Our objectives were to determine the response of potato plants to elevated CO2 (700 μmol/mol) and high temperature (35/25 °C) at tuber initiation and tuber bulking, and to elucidate effects on sink developmental processes. Potato plants were grown in controlled environments with treatments at: Tuber initiation (TI), during the first two weeks after initiating short-day photoperiods, and Tuber bulking (TB). At TI, and 25 °C, elevated CO2 increased tuber growth rate, while leaves and stems were not affected. Whole-plant dry matter accumulation rate, was inhibited by high temperature about twice as much at TI than at TB. Elevated CO2 partially ameliorated high temperature inhibition of sink organs. At TI, with 25 °C, elevated CO2 primarily affected tuber cell proliferation. In contrast, tuber cell volume and endoreduplication were unaffected. These findings indicate that the TI stage and cell division is particularly responsive to elevated CO2 and high temperature stress, supporting the view that attention should be paid to the timing of high-temperature stress episodes with respect to this stage.

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“…Heat stress due to increased humidity and high temperatures results into drying of seed materials and causes potato plants to produce small, poor quality tubers that fetch very low market prices (Chakraborty & Newton, 2011). Singh et al (2020) further argues that heat stress on potatoes reduce crop yield especially at the tuber formation stage which is highly sensitive to increasing temperatures. Heavy rains also increase the incidence of bacterial wilt and late blight hence resulting into reduced yields.…”

Section: Introductionmentioning

confidence: 99%

Adoption of climate-resilient potato varieties under partial population exposure and its determinants: Case of smallholder farmers in Meru County, Kenya

Kimathi

Ayuya

Mutai

2020

Cogent Food & Agriculture

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Impact of heat stress on potato ( Solanum tuberosum L.): present scenario and future opportunities

Cited by 39 publications

References 194 publications

Selection of Suitable Potato Genotypes for Late-Sown Heat Stress Conditions Based on Field Performance and Stress Tolerance Indices

Selection of Suitable Potato Genotypes for Late-Sown Heat Stress Conditions Based on Field Performance and Stress Tolerance Indices

Role of Tuber Developmental Processes in Response of Potato to High Temperature and Elevated CO2

Adoption of climate-resilient potato varieties under partial population exposure and its determinants: Case of smallholder farmers in Meru County, Kenya

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