Efficiency and Suitability of Non-Invasive Measurements for Potato Plants Grown in Greenhouse

Hermeziu, Manuela; NITU, Sorina

doi:10.17930/agl202229

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, in field experiments with different potato genotypes, NDVI values were good indicators of early drought stress [44]. This information can contribute to the development of strategies for mitigating the impact of stress on potato production [41]. Additionally, time-series NDVI data collected at different crop-growth stages or throughout the growing season have been proven to be a valuable predictor in crop yield models [45].…”

Section: Introductionmentioning

confidence: 94%

“…Since extended drought conditions can cause plant drying and reduced production, NDVI serves as an indicator of photosynthetic active biomass. This non-invasive method, which involves measuring the NDVI value, is also useful for monitoring the state of potato vegetation under different growing conditions and is a suitable tool for detecting early abiotic stress by drought [40,41]. In the case of potatoes, the NDVI values measured at flowering correlated well (R 2 = 0.67) with the number of tubers per plant, whereas the NDVI values measured later (at the yellowing stage) showed a good correlation with the tuber yield (g/m 2 ) [42].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%