Can the Normalized Difference Vegetation Index Be Used for Yield Prediction in Solanum tuberosum L. Plants Biofortified with Calcium?

Coelho, Ana Rita F.; Daccak, Diana; Luís, Inês Carmo; Marques, Ana Coelho; Pessoa, Cláudia Campos; Brito, Maria; Kullberg, José; Simões, Manuela; Silva, Maria Manuela; Pessoa, Maria F.; Reboredo, Fernando H.; Legoinha, Paulo; Ramalho, José C.; Campos, Paula S.; Pais, Isabel P.; Semedo, José N.; Lidon, Fernando C.

doi:10.3390/iecag2023-15757

Cited by 1 publication

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similarly, the NDVI results measured in potato drought experiments were related to yield [95]. Even though the NDVI values can be valuable results for detecting the physiological state of plants and the state of stress, they were not sufficient by themselves to accurately predict the yield of potatoes in 'Agria' when the effect of calcium (Ca) biofortification was studied [96].…”

Section: Ndvi Resultsmentioning

confidence: 99%

Effect of Drought and Seed Tuber Size on Agronomical Traits of Potato (Solanum tuberosum L.) under In Vivo Conditions

Hanász,

Zsombik,

Magyar-Tábori

et al. 2024

Agronomy

View full text Add to dashboard Cite

Drought may considerably decrease the growth and yield of potatoes. Small tubers may have lower performance and be more sensitive to abiotic stresses than larger tubers. Since an increase in drought areas may be expected, the development of potato varieties with drought tolerance has become necessary. Two-year greenhouse experiments were conducted to test the drought tolerance of potato breeding lines (C103, C107, C20) with great osmotic stress tolerance. Minitubers with diameters of 25–35, 20–24, 15–19 and 10–14 mm were planted. Treatments were the optimal irrigated control (100%) and moderate and severe drought (60% and 20% of optimum water supply). To study the after-effects of drought, tubers from different treatments were planted separately the following year because seed tuber priming may increase drought tolerance. Seed tubers (25–35 mm), two irrigation treatments (control and severe drought), and two control cultivars were used in the second year. We observed the rate of emergence from day-after-planting (DAP) 20 to 30 and flowering from 48 to 54. NDVI measurements were performed on the DAP35-45-75. Plant height and fresh weight of aboveground biomass (AGB) were recorded on DAP76. Harvested tubers were counted, weighed, and size-categorized, and then the number and fresh tuber yield per plant (TN and TY) were calculated. Stress indices (SI) were calculated as percentages of the results of control plots to compare the responses of genotypes to drought stress. We found that each breeding line showed adequate drought tolerance, although only the C103 and C107 breeding lines were stable in in vivo conditions. SI values for tuber number/tuber yield were 103/57; 102/63; 83/52; 80/58 and 55/41 in C103, C107, C20, ‘Boglárka’ and ‘Desiree’ (the last two were control varieties), respectively. The size of the seed tuber significantly affected each character, and usually minitubers larger than 20 mm performed better than smaller ones. No significant after-effect of drought stress on the next generation was found. Although we found a positive correlation (r=0.83) between NDVI values and yield parameters, the correlations in our study were not consistent in all genotypes and water treatments.

show abstract

Section: Ndvi Resultsmentioning

confidence: 99%

Effect of Drought and Seed Tuber Size on Agronomical Traits of Potato (Solanum tuberosum L.) under In Vivo Conditions

Hanász,

Zsombik,

Magyar-Tábori

et al. 2024

Agronomy

View full text Add to dashboard Cite

show abstract

Can the Normalized Difference Vegetation Index Be Used for Yield Prediction in Solanum tuberosum L. Plants Biofortified with Calcium?

Abstract: This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).

Cited by 1 publication

References 20 publications

Effect of Drought and Seed Tuber Size on Agronomical Traits of Potato (Solanum tuberosum L.) under In Vivo Conditions

Effect of Drought and Seed Tuber Size on Agronomical Traits of Potato (Solanum tuberosum L.) under In Vivo Conditions

Contact Info

Product

Resources

About