Relationship Between Nitrogen Fertilization, Bacterial Leaf Blight Severity, and Yield of Rice

Reddy, A. P. K.

doi:10.1094/phyto-69-970

Cited by 35 publications

(19 citation statements)

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“…In this study, the moderately susceptible Nakitembe showed the lowest wilt incidences and longest incubation periods at both the highest Ca and K concentrations. Other nutrient studies have also showed resistant cultivars expressing better disease resistance at higher nutrient concentrations (31,48). All the plantlets that developed disease eventually died within 2 to 3 weeks and were not universally dependent on nutrient concentration.…”

Section: Discussionmentioning

confidence: 95%

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High Potassium, Calcium, and Nitrogen Application Reduce Susceptibility to Banana Xanthomonas Wilt Caused by Xanthomonas campestris pv. musacearum

Atim

Beed²,

Tusiime

et al. 2013

Plant Disease

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Atim, M., Beed, F., Tusiime, G., Tripathi, L., and van Ästen, P. 2013. High potassium, calcium, and nitrogen application reduce susceptibility to banana Xanthomonas wilt caused by Xanthomonas campestris pv. musacearum. Plant Dis. 97:123-130.The effect of exogenous applications of potassium (K), calcium (Ca), and nitrogen (N) on the susceptibility of four banana cultivars to Banana Xanthomonas wilt (BXW) was studied. Murashige and Skoog (MS) medium with normal concentrations of K at 783 mg/liter, Ca at 121 mg/liter, and N at 841 mg/liter was modified to contain various concentrations of K, Ca, and N. Each nutrient was varied singly, each with three replicate experiments. The concentrations were K at 78, 157, 391, 783,1,565,and 3,913 mg/liter; Ca at 12,24, 60, 121, 241, and 603 mg/liter; and N at 84, 168, 420, 841, and 1,682 mg/liter Plantlets were generated in vitro on normal MS medium and later exposed to the nutrient concentrations for a total of 8 weeks. Thereafter, they were artificially inoculated with Xanthomonas campestris pv. musacearum using an insulin syringe. In each nutrient, plantlets exposed to higher nutrient concentrations significantly (P < O.OOOI) accumulated more nutrient in their tissues compared with those exposed to lesser nutrient concentrations. Wilt incidences were significantly reduced, and incubation periods (time from inoculation to appearance of first disease symptoms) increased, with increasing nutrient application. The study lays a background for in vivo studies aimed at management of BXW using nutrients, such as fertilizer application.

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Section: Discussionmentioning

confidence: 95%

“…Higher N levels have also suppressed other Xanthomonad-caused diseases (10,11). However, in others, high N levels increased diseases such as bacterial blight severity of rice (X. oryzae) (31), leaf blight of onion (X. axonopodis pv. allii) (17), and black Sigatoka of banana [Mycospharellafijiensis) (2).…”

Section: Discussionmentioning

confidence: 99%

High Potassium, Calcium, and Nitrogen Application Reduce Susceptibility to Banana Xanthomonas Wilt Caused by Xanthomonas campestris pv. musacearum

Atim

Beed²,

Tusiime

et al. 2013

Plant Disease

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“…The high water‐holding and water retention capacity of clayey soils might have created high humidity in the microclimate of the plants, which allowed the development of disease and increasing disease severity in these plants (Marathe et al ., ). Furthermore, a higher nitrogen content favours profuse succulent vegetative growth, which is vulnerable to various diseases (Reddy et al ., ; Suresh et al ., ). In clayey soils, higher nitrogen availability (367.1 kg/ha) and leaf content (1.63%) might have promoted succulent vegetative growth, which is prone to disease infestation.…”

Section: Resultsmentioning

confidence: 98%

Innovative soil management for sustainable pomegranate cultivation on skeletal soils

Marathe

Sharma

Murkute

2018

Soil Use and Management

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An innovative planting technique for pomegranate (Punica granatum L.) cv. Bhagwa in gravelly, shallow soils was standardized. Trapezoidal pits were dug in skeletal soils and filled with various types of soils, namely, gravelly, loamy, clayey, clayey mixed with sand and weathered rock. The clayey soil had the highest capacity to supply macronutrients (available N: 376.1, P: 47.1 and K: 761.6 kg/ha), and the loamy soil had the highest capacity to supply micronutrients (available Fe: 19.2, Cu: 8.1 and Zn: 1.83 ppm). The highest Mn (41.2 ppm), Zn (22.4 ppm), Cu (80.1 ppm) and chlorophyll (61.8) contents were observed in the leaves of plants grown in loamy soil. The highest number of hermaphrodite flowers was observed in loamy soil. Higher fruit quality in terms of higher juice content (49.3%), total soluble solids (TSS) in fruit juice (15.7°B) and TSS:acid ratio (37.8) was produced in light‐textured soil. The highest fruit yield (4.28 t/ha) and cost‐benefit ratio (3.85) were obtained in clayey soil up to 0.60 m depth. This produced a 90.2% increase in yield, while total income was 147.4% higher than that obtained with weathered rock. However, when the pits were filled with clayey soils up to 1.20 m depth, disease prevalence increased, and yield was markedly reduced, to 2.25 t/ha. Thus, it may be concluded that skeletal soils could be used for pomegranate cultivation by refilling rhizosphere soil strata with clayey or loamy soil material up to 0.60 m depth.

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“…It is further assumed that the departure from the optimum condition follows the law of diminishing returns as observed for multiple relationships found in agricultural systems (Reddy et al, 1979;Lu et al, 2006;Eguchi and Hasegawa, 2008;Gaviola and Lipinski, 2008) and explained by the C-D production function used in economics.…”

Section: Selection Of Cobb-douglas Production Functionmentioning

confidence: 99%

Quantifying soil physical condition based on soil solid, liquid and gaseous phases

Wang

Cruse

Zhao

et al. 2015

Soil and Tillage Research

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Relationship Between Nitrogen Fertilization, Bacterial Leaf Blight Severity, and Yield of Rice

Cited by 35 publications

References 0 publications

High Potassium, Calcium, and Nitrogen Application Reduce Susceptibility to Banana Xanthomonas Wilt Caused by Xanthomonas campestris pv. musacearum

High Potassium, Calcium, and Nitrogen Application Reduce Susceptibility to Banana Xanthomonas Wilt Caused by Xanthomonas campestris pv. musacearum

Innovative soil management for sustainable pomegranate cultivation on skeletal soils

Quantifying soil physical condition based on soil solid, liquid and gaseous phases

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