Amino Acids Sources and Chitosan Enhance Cauliflower Yield and Quality under Heat Stress

Marzouk, Neama; Abd-Alr, Hanaa A.; El-Sa, Sameh M.M.

doi:10.3923/ajps.2022.9.23

Cited by 4 publications

(1 citation statement)

References 32 publications

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“…Although OGA claimed superiority in curd (length and diameter) in both seasons, its size was statistically identical to COS-treated plants. The superior vegetative growth, yield, and physical-nutrition curd quality from OGA and COS could be attributed to a higher elevation of chlorophyll and fostering greater photosynthetic activity leading to the synthesis of various metabolites ( Sheikha & Al-Malki, 2011 ; Rahman et al, 2018 ; Marzouk, Abd-Alrahman & El-Sawy, 2022 ). Chitosan, due to its amino components and degradation in the soil, facilitated the production of excellent tubers in kohlrabi along with maximum yields and leaves containing a rich nutrient composition ( El-Bassiony et al, 2014 ).…”

Section: Discussionmentioning

confidence: 99%

Curd, seed yield and disease resistance of cauliflower are enhanced by oligosaccharides

Rajib,

Sultana,

Gao

et al. 2024

PeerJ

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Background Oligosaccharides have been demonstrated as promoters for enhancing plant growth across several crops by elevating their secondary metabolites. However, the exploration of employing diverse oligosaccharides for qualitative trait improvements in cauliflower largely unknown. This study was intended to uncover the unexplored potential, evaluating the stimulatory effects of three oligosaccharides on cauliflower’s curd and seed production. Methods Two experiments were initiated in the early (15 September) and mid-season (15 October). Four treatments were implemented, encompassing a control (water) alongside chitosan oligosaccharide (COS 50 mg.L–1) with a degree of polymerization (DP) 2–10, oligo galacturonic acid (OGA 50 mg.L−1) with DP 2–10 and alginate oligosaccharide (AOS 50 mg.L−1) with DP 2–7. Results Oligosaccharides accelerated plant height (4–17.6%), leaf number (17–43%), curd (5–14.55%), and seed yield (17.8–64.5%) in both early and mid-season compared to control. These enhancements were even more pronounced in the mid-season (7.6–17.6%, 21.37–43%, 7.27–14.55%, 25.89–64.5%) than in the early season. Additionally, three oligosaccharides demonstrated significant disease resistance against black rot in both seasons, outperforming the control. As a surprise, the early season experienced better growth parameters than the mid-season. However, performance patterns remained more or less consistent in both seasons under the same treatments. COS and OGA promoted plant biomass and curd yield by promoting Soil Plant Analysis Development (SPAD) value and phenol content. Meanwhile, AOS increased seed yield (56.8–64.5%) and elevated levels of chlorophyll, ascorbic acid, flavonoids, while decreasing levels of hydrogen per oxide (H2O2), malondialdehyde (MDA), half maximal inhibitory concentration (IC50), and disease index. The correlation matrix and principal component analysis (PCA) supported these relations and findings. Therefore, COS and OGA could be suggested for curd production and AOS for seed production in the early season, offering resistance to both biotic and abiotic stresses for cauliflower cultivation under field conditions.

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Section: Discussionmentioning

confidence: 99%

Curd, seed yield and disease resistance of cauliflower are enhanced by oligosaccharides

Rajib,

Sultana,

Gao

et al. 2024

PeerJ

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Foliage-Sprayed Nano-Chitosan-Loaded Nitrogen Boosts Yield Potentials, Competitive Ability, and Profitability of Intercropped Maize-Soybean

El-Enin

Sheha

El-Serafy

et al. 2023

Int. J. Plant Prod.

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The progressive reduction of synthetic agrochemical fertilizers is one of the key factors in the shift from conventional agriculture to sustainable farming. Nitrogen (N) is the ruling element in the development of agricultural production, but its use in the mineral form or its excessive use causes several environmental issues. Since the release of N nanocomposites coincides with their uptake by crops, N loss reduces while enhancing plant uptake due to nano fertilizers application. Additionally, an intercropping legume with cereal as an eco-friendly pattern could improve and rationalize the nitrogenous inputs. Therefore, a two-year field trial was conducted to determine the efficacy of nano-chitosan-loaded N (CS-NNPs) for saving mineral N amounts applied in maize-based on maize-soybean intercropping and enhancing land productivity. Methods In a randomized split-plot design in three replicates, three intercropping patterns, in addition to the sole crops, and three N levels were implemented. Intercropping involved three intercrop configurations [planting maize rows (M) alternated with soybean rows (S) in patterns of 4M:2S, 2M:4S, and 3M:3S)], in addition to planting sole maize crop (SMC) and sole soybean crop (SSC). N fertilization treatments included adding 288 kg N ha−1 (MN100%) and two levels of CS-NNPs composite involving 216 kg N ha−1 + 2 foliar sprays of CS-NNPs (MN75% + 2CS-NNPs), and 144 kg N ha−1 + 3 foliar sprays of CS-NNPs composite (MN50% + 3CS-NNPs). Under the tested treatments, the agronomic traits, intercropping indices, and economic benefits were estimated. Results Findings revealed that the application of SMC × MN75% + 2CS-NNPs, followed by 4M:2S × MN75% + 2CS-NNPs showed the highest growth, biological yield, and grain yield of maize. The interaction of SSC × MN75% + 2CS-NNPs, followed by 2M:4S × MN75% + 2CS-NNPs resulted in the highest seed yield components, biological yield, straw yield, and seed yield of soybean. Application of 2M:4S × MN100%, 2M:4S × MN50% + 3NNPs, and 3M:3S × MN100% recorded the maximum total land equivalent ratio. While applications of 2M:4S × MN100%, 2M:4S × MN75% + 2CS-NNPs, and 3M:3S × MN100% achieved the highest land equivalent coefficient, land-use efficiency, area time equivalent ratio, and percent yield difference. Likewise, both interactions of 2M:4S × MN75% + 2CS-NNPs and 3M:3S × MN100% recorded the highest system productivity index. Better yield advantage of maize-soybean intercrop compared with the monocrop since total actual yield loss values were positive and higher than zero in all interactions of intercropping pattern × N fertilization. Fertilizing maize with MN50% + 3CS NNPs grown under the 2M:4S pattern had the highest positive aggressivity values. Conclusion The productivity shortfall accompanying the 25% N reduction was compensated by the application of CS-NNPs. Thus, N applied to the maize intercropped with soybeans can be rationalized. This undoubtedly has a good economic payoff for the maize growers with the conservation of the agricultural environment. In maize production systems, it is advisable to fertilize the plants using 216 kg instead of 288 kg nitrogen ha−1 when nano chitosan-loaded nitrogen composite twice (0.48 kg nitrogen ha−1) applied.

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Efficacy of Humic Acids and Chitosan for Enhancing Yield and Sugar Quality of Sugar Beet Under Moderate and Severe Drought

Makhlouf

Khalil

Saudy

2022

J Soil Sci Plant Nutr

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Amino Acids Sources and Chitosan Enhance Cauliflower Yield and Quality under Heat Stress

Cited by 4 publications

References 32 publications

Curd, seed yield and disease resistance of cauliflower are enhanced by oligosaccharides

Curd, seed yield and disease resistance of cauliflower are enhanced by oligosaccharides

Foliage-Sprayed Nano-Chitosan-Loaded Nitrogen Boosts Yield Potentials, Competitive Ability, and Profitability of Intercropped Maize-Soybean

Efficacy of Humic Acids and Chitosan for Enhancing Yield and Sugar Quality of Sugar Beet Under Moderate and Severe Drought

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