Foliar application of humic acid at heading improves physiological and agronomic characteristics of durum wheat (Triticum durum L.)

Mutlu, Arzu; Taş, Timuçin

doi:10.1016/j.jksus.2022.102320

Cited by 7 publications

(5 citation statements)

References 19 publications

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“…1). Similar HA-induced improvements in growth indices have been reported in hydroponically grown maize seedlings [70], greenhouse-grown sorghum at reproductive stage [71], and other plant species including rice [32], wheat [72], and soybean [73]. The positive effects of HA on the growth of different plant organs support its pleiotropic effects on physiological and biochemical signaling pathways that mediate drought resilience [30,74,75].…”

Section: Discussionsupporting

confidence: 65%

Mitigation of drought stress in maize and sorghum by humic acid: differential growth and physiological responses

Abu-Ria,

Elghareeb,

Shukry

et al. 2024

BMC Plant Biol

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Background Drought is a major determinant for growth and productivity of all crops, including cereals, and the drought-induced detrimental effects are anticipated to jeopardize world food security under the ongoing global warming scenario. Biostimulants such as humic acid (HA) can improve drought tolerance in many cereals, including maize and sorghum. These two plant species are genetically related; however, maize is more susceptible to drought than sorghum. The physiological and biochemical mechanisms underlying such differential responses to water shortage in the absence and presence of HA, particularly under field conditions, are not fully understood. Results Herein, the effects of priming maize and sorghum seeds in 100 mg L−1 HA on their vegetative growth and physiological responses under increased levels of drought (100%, 80%, and 60% field capacity) were simultaneously monitored in the field. In the absence of HA, drought caused 37.0 and 58.7% reductions in biomass accumulation in maize compared to 21.2 and 32.3% in sorghum under low and high drought levels, respectively. These responses were associated with differential retardation in overall growth, relative water content (RWC), photosynthetic pigments and CO2 assimilation in both plants. In contrast, drought increased root traits as well as H2O2, malondialdehyde, and electrolyte leakage in both species. HA treatment significantly improved the growth of both plant species under well-watered and drought conditions, with maize being more responsive than sorghum. HA induced a 29.2% increase in the photosynthetic assimilation rate in maize compared to 15.0% in sorghum under high drought level. The HA-promotive effects were also associated with higher total chlorophyll, stomatal conductance, RWC, sucrose, total soluble sugars, total carbohydrates, proline, and total soluble proteins. HA also reduced the drought-induced oxidative stress via induction of non-enzymic and enzymic antioxidants at significantly different extents in maize and sorghum. Conclusion The current results identify significant quantitative differences in a set of critical physiological biomarkers underlying the differential responses of field-grown maize and sorghum plants against drought. They also reveal the potential of HA priming as a drought-alleviating biostimulant and as an effective approach for sustainable maize and sorghum production and possibly other crops in drought-affected lands.

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Section: Discussionsupporting

confidence: 65%

Mitigation of drought stress in maize and sorghum by humic acid: differential growth and physiological responses

Abu-Ria,

Elghareeb,

Shukry

et al. 2024

BMC Plant Biol

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“…In this study, GSH and AA were decreased by salinity but increased by Kh and SA application ( Figure 5 A,B). It has been reported that AA and GSH protect cell membranes from oxidative damage by reacting with O 2 •− and H 2 O 2 [ 77 , 78 ]. The application of Kh mitigates the adverse effects of salinity by improving the absorption of elements, enhancing plant growth [ 55 ], and motivating the plant defence system against stresses [ 53 ].…”

Section: Discussionmentioning

confidence: 99%

Application of Potassium Humate and Salicylic Acid to Mitigate Salinity Stress of Common Bean

El-Beltagi

Al-Otaibi

Parmar

et al. 2023

Life

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In the current study, we investigated the effect of potassium humate (Kh) and salicylic acid (SA) in mitigating the salinity stress of common bean plants. Common bean seedlings were treated with 0.2 g/L SA as a foliar application and 0.3 g/L Kh as a soil application individually or in combination. After 7 days of germination, plants were treated with 50 mM NaCl and normal water as a control. Our results indicate that salt treatment reduced the plant growth (fresh and dry shoots and roots), leaf pigments (total chlorophyll and carotenoids), ascorbic acid (AA), glutathione (GSH), and potassium (K) contents. On the contrary, proline content; sodium (Na); hydrogen peroxide (H2O2); superoxide anion (O2•−); and antioxidant enzymes, including catalase (CAT), peroxidase (POX), and superoxide dismutase (SOD), were increased by saline stress. However, applying either individual Kh and SA or their combination stimulated seedling growth under salinity stress by increasing growth parameters, leaf pigment contents, AA, GSH, proline content, K content, and antioxidant enzymes compared with the control. Additionally, Na content, H2O2, and O2•− were reduced by all applications. The application of the Kh (0.3 g/L) + SA (0.2 g/L) combination was more effective than using the individual compounds. In conclusion, applications of Kh + SA can mitigate salt stress and improve the seedling growth of common bean.

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“…Dengan demikian pemberian asam humat dapat mengurangi penggunaan pupuk, sehingga biaya untuk pembelian pupuk secara efisiensi dapat dimungkinkan. Penelitian yang dilakukan terhadap tanaman Triticum durum L (gandum) juga menunjukkan bahwa asam humat 4.5 L/ha dapat meningkatkan 28% berat bulir gandum dibandingkan dengan yang tidak menambahkan asam humat pada sistem pertanian organik (Mutlu & Tas, 2022). Selain itu asam humat juga mampu memperbaiki kondisi tanah yang tercemar logam berat dan polutan organik (Li, 2020).…”

Section: Gambar 5 Workhop Konservasi Tanah DI Areal Pertanianunclassified

Pemberdayaan Kemitraan Petani untuk Ketahanan Pangan Melalui Model Pertanian Berkelanjutan di Era Digital

Noriko,

Mandjusri,

Mailani

et al. 2024

JPMWP

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Ketahanan pangan untuk mencapai masyarakat yang sehat ditentukan oleh usaha di bidang pertanian. Petani di kampung Cibeureum desa Sukanagalih, kecamatan Pacet Kabupaten Cianjur Jawa Barat merupakan pemasok produk hortikultura untuk di wilayah sekitarnya dan DKI Jakarta. Permasalahan yang dihadapi petani adalah seringnya mengalami kerugian akibat ongkos produksi pertanian yang tinggi seperti untuk pembelian pupuk dan pestisida. Masalah lain adalah sistem pemasaran yang masih konvensional dan kurang memperhatikan permintaan pasar. Jika masalah ini terus berlanjut dikhawatirkan akan menimbulkan dampak terhadap ekologi, ketahanan pangan, ekonomi dan sosial yang lebih serius. Alternatif penyelesain masalah adalah menerapkan model pertanian berkelanjutan melalui konservasi tanah dan air serta meningkatkan kemampuan e marketing. Tujuan PKM adalah meningkatkan pengetahuan dan kemampuan petani untuk menerapkan konservasi tanah dan air serta pemasaran hasil pertanian melalui WA group. Metode yang digunakan adalah mengadakan workshop mengenai upaya konservasi air dan tanah, pemberdayaan petani untuk membuat 1 embung dan 3 kolam, serta workshop pemanfaatan WA group untuk promosi hasil pertanian. Capaian hasil dari kegiatan ini adalah terwujudnya 1 embung dan 3 kolam sehingga terpenuhinya kebutuhan air untuk 7 hektar lahan pertanian, 5 orang petani menerapkan konservasi tanah secara mandiri serta peningkatan produksi tomat sebesar 100% dan jumlah masa panen dari 8 kali menjadi 16 kali. Pemanfaatan WA group untuk e marketing juga dapat dilakukan oleh 6 orang petani mitra. Walaupun baru 2 orang yang aktif membuat konten promosi, namun sudah ada pengusaha kuliner mengirimkan kualifikasi jenis sayur yang diperlukan.

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Foliar application of humic acid at heading improves physiological and agronomic characteristics of durum wheat (Triticum durum L.)

Cited by 7 publications

References 19 publications

Mitigation of drought stress in maize and sorghum by humic acid: differential growth and physiological responses

Mitigation of drought stress in maize and sorghum by humic acid: differential growth and physiological responses

Application of Potassium Humate and Salicylic Acid to Mitigate Salinity Stress of Common Bean

Pemberdayaan Kemitraan Petani untuk Ketahanan Pangan Melalui Model Pertanian Berkelanjutan di Era Digital

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