Biomass and Accumulation of Potassium, Calcium, and Magnesium in Gladiolus as Affected by Heat Units and Corm Size

Nutrient Uptake and Partitioning in Oriental Lilium

“…Calcium then continued to decline from 40 to 70 DAT. In contrast to the results observed in the present study, gladiolus exhibited minimal modifications in the Ca content in the corm throughout the growing season, although similar to our results, at the end of the study, it was accumulated mainly in the leaves [37]. K. In this case, Ca was not supplied primarily by the bulb, as just 13.5% of the total Ca accumulated in the plant at the end of the growing season originated from it, and the remaining 86.5% was taken up from the growing medium.…”

“…Potassium at 5.6 mmol•L −1 is considered the optimum rate during cultivation in soilless media [36]. As reported for gladiolus [37], K was the nutrient most demanded by lilium (Table 1); however, there is a contrasting accumulation pattern between both species. In lilium, the models indicate that K is demanded at two different rates (Figure 4A).…”

“…However, after ~49 DAT up to study termination, K was markedly demanded for the development of leaves and flowers, as the accumulation rate was increased by 5.8 times (10.33 mg/plant/day) and remained so until flowering was completed (Figure 3A). In contrast, for gladiolus, K was accumulated at three different rates [37]. The increase in the uptake rate after ~49 DAT was associated with the initiation phase of flowering and a marked increase in the growth of leaves, suggesting that K was used for flower and leaf expansion through the control of water relations [38].…”

“…Even though it is considered as a readily mobile nutrient in the phloem [41], only 37.1% of the total Mg accumulated came from the bulb; the remaining 62.9% was absorbed by the roots (Table 1). Likewise, the corm of gladiolus has been reported to provide very little amounts of Mg to the plants, even if the corms are of a large size [37]. Similar to Ca, flowering was not the developmental phase in which most of the nutrient was accumulated, as only 45.2% of the total Mg was absorbed during this phase.…”

Nondestructive diagnostics of magnesium deficiency based on distribution features of chlorophyll concentrations map on cucumber leaf

“…Low level of Mg supplement often result in low chlorophyll production, which drastically impact the plant growth, flowering and fruit bearing (Farhat et al, 2016;Farzadfar et al, 2017;Saghaiesh et al, 2019). Moreover, Mg shortage also affects the production of chemical components that are connected with the product qualities, like appearance, aroma, taste and nutrition (Canizella et al, 2015;Gomez-Perez et al, 2018;Nikolic et al, 2014;Schurt et al, 2014). Although Mg deficiency diagnostics methods based on the Mg element content analysis with chemical methods, like inductively coupled plasma mass spectrometry, get good performance for diagnosing Mg deficient plants, the chemical analysis process is time-consuming, laborious and high cost (Guo et al, 2016;Nartvaranant, 2018).…”