The nutritional status and fluorescence characteristics of maize cultivars with different chlorophyll content and yields

Wang, Y.; An, Zhao; Li, R.K.; Yang, Xinghong; Huang, Yufang; Shao, Ruixin; Ye, Y.L.

doi:10.32615/ps.2019.032

Cited by 4 publications

(3 citation statements)

References 33 publications

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“…These findings suggest that shade helped alleviate stress from high solar radiation. Studies with ginger have reported an increase in chlorophyll content with higher shade levels [36,[46][47][48]. In our study, ambient temperature was lower under shade compared to full sun (Table 1).…”

Section: Discussionsupporting

confidence: 44%

Strategies to Reduce Radiation Stress in Open-Field Ginger and Turmeric Production

et al. 2022

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Excess solar radiation can negatively affect growth and rhizome yield of ginger (Zingiber officinale) and turmeric (Curcuma longa) plants. Thus, the objective of this study was to evaluate the effect of 60% shade nets (Experiment 1) as well as white and red kaolin sprays during two production stages (early establishment vs. entire cycle) (Experiment 2) on field-grown ginger and turmeric plants. In Experiment 1, plants were propagated from seed rhizomes (R) or second-generation rhizomes from tissue-cultured plants (2GR), while only R were used in Experiment 2. There were no differences in rhizome yield in response to shade in Experiment 1, with mean values of 644 and 692 g in ginger and turmeric, respectively. Overall, 2GR ginger plants produced a higher rhizome yield (880 g) than R plants (425 g), but no yield differences were measured in turmeric. In Experiment 2, for both species and regardless of kaolin color, sprays applied during the entire cycle increased photosynthesis and stomatal conductance and reduced leaf temperature and transpiration compared to control. Rhizome yield was also up to 87% higher in ginger and 47% higher in turmeric plants sprayed with kaolin. Spraying plants with white kaolin during the early season establishment of these crops can be an effective strategy to reduce radiation stress for open-field production.

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Section: Discussionsupporting

confidence: 44%

Strategies to Reduce Radiation Stress in Open-Field Ginger and Turmeric Production

et al. 2022

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“…3). Others have suggested that SPAD index values $40 indicate acceptable plant health status in ginger (Li et al, 2018;Wang et al, 2019). Accordingly, Li et al (2018) found that ginger plants grown under adequate growing conditions had an average SPAD index of 49, which is generally within range from values measured in both experiments, except for ginger plants propagated from 2GR and all turmeric plants in Expt.…”

Section: Discussionmentioning

confidence: 55%

Effect of Photoperiod, Propagative Material, and Production Period on Greenhouse-grown Ginger and Turmeric Plants

Flores

Retana-Cordero

Fisher

et al. 2021

horts

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The objectives were to 1) compare growth and yield of different ginger (Zingiber officinale) and turmeric (Curcuma longa) propagules grown under two photoperiods (Expt. 1); and 2) evaluate whether their growing season could be extended with night interruption lighting (NI) during the winter (Expt. 2). In Expt. 1, propagules included 1) micropropagated tissue culture (TC) transplants, 2) second-generation rhizomes harvested from TC transplants (2GR), and 3) seed rhizomes (R). Plants received natural short days (SDs) or NI providing a total photon flux density (TPFD) of 1.3 µmol·m−2·s−1. Providing NI increased number of new tillers or leaves per plant, rhizome yield (i.e., rhizome fresh weight), and dry mass partitioning to rhizomes in both species. There was no clear trend on SPAD index in response to photoperiod or propagative material. Although TC-derived plants produced more tillers or leaves per plant, 2GR ginger and R turmeric produced a higher rhizome yield. In Expt. 2, seed rhizomes of ginger and turmeric were grown under five treatments with different photoperiods and/or production periods: 1) 20 weeks with NI (20NI), 2) 24 weeks with NI (24NI), 3) 28 weeks with NI (28NI), 4) 14 weeks with NI + 10 weeks under natural SDs (24NISD), and 5) 14 weeks with NI + 14 weeks under natural SDs (28NISD). NI provided a TPFD of 4.5 µmol·m−2·s−1. Lengthening the production period and providing NI increased rhizome yield and crude fiber content in both species. SPAD index decreased when plants were exposed to natural SDs at the end of the production period (NISD treatments). Results demonstrate the potential to overcome winter dormancy of ginger and turmeric plants with NI, enabling higher rhizome yield under natural SDs.

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“…The maximum reduction was found in T1, which means a pronounced effect of waterlogging was observed on biomass yield when it occurred at the early stage. The chlorophyll content is an important indicator reflecting the crop photosynthetic capacity 35 . Previous studies have demonstrated significantly low leaf chlorophyll content under waterlogged conditions, especially in sensitive plant species such as cotton 25 , 36 , maize 21 and wheat 37 .…”

Section: Discussionmentioning

confidence: 99%

Effects of waterlogging at different growth stages on the photosynthetic characteristics and grain yield of sorghum (Sorghum bicolor L.)

Zhang

Yue

Chen

et al. 2023

Sci Rep

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Various plants, including sorghum (Sorghum bicolor L.), are exposed to waterlogging; however, little is known about the effects of waterlogging at different growth stages on sorghum. A pot experiment was conducted using two sorghum hybrids, Jinuoliang 01 (JN01) and Jinza 31 (JZ31), to investigate the effects of waterlogging at different growth stages on the photosynthesis enzyme activity, chlorophyll content, malondialdehyde (MDA) content, photosynthetic parameters, dry matter accumulation, and grain yield. The experiment was conducted using waterlogging treatments implemented at the five-leaf stage (T1), flowering stage (T2), and filling stage (T3), using standard management (no waterlogging) as a control (CK). The adverse effects of waterlogging on sorghum growth varied with the waterlogging timing, with the maximum impact at T1, followed by T2 and T3. JZ31 was more sensitive to waterlogging compared to JN01. Waterlogged conditions inhibited the photosynthetic enzyme activity and reduced the chlorophyll content and photosynthesis, ultimately lowering the biomass yield and grain yield. The maximum yield loss was observed with the T1 waterlogging treatment; the grain yield of JN01 and JZ31 decreased by 52.01–54.58% and 69.52–71.97%, respectively, compared with CK. Furthermore, the decline in grain yield in T1 was associated with reducing grain number per panicle. These findings indicate that sorghum is sensitive to waterlogging at the five-leaf stage and JZ31 is more sensitive to waterlogging than JN01, which may provide a basis for selecting genotypes and management measures to cope with waterlogging in sorghum.

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The nutritional status and fluorescence characteristics of maize cultivars with different chlorophyll content and yields

Cited by 4 publications

References 33 publications

Strategies to Reduce Radiation Stress in Open-Field Ginger and Turmeric Production

Strategies to Reduce Radiation Stress in Open-Field Ginger and Turmeric Production

Effect of Photoperiod, Propagative Material, and Production Period on Greenhouse-grown Ginger and Turmeric Plants

Effects of waterlogging at different growth stages on the photosynthetic characteristics and grain yield of sorghum (Sorghum bicolor L.)

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