DRIS evaluation of persimmon (Diospyrus kaki L.)

Klein, I.; Fanberstein, L.; Viner, L.

doi:10.1007/bf00011068

Cited by 2 publications

(2 citation statements)

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“…This method has been used with a wide range of crops (i.e., almond, mandarin, cotton or soya bean) from the time it was established to the presentday [15][16][17][18]. In persimmon crops, Klein et al [19] in Israel and in a single phenological stage have employed the DRIS method. Their study determined the usefulness of this method for distinguishing the mineral profile of vigorous fruiting shoots from regular fruiting shoots based on the area and weight of leaves.…”

Section: Introductionmentioning

confidence: 99%

DRIS Norms and Sufficiency Ranges for Persimmon ‘Rojo Brillante’ Grown under Mediterranean Conditions in Spain

et al. 2022

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The aim of this study was to establish DRIS (Diagnosis and Recommendation Integrated System) norms and Nutritional Optimal Ranges (NOR) for ‘Rojo Brillante’ Protected Designation of Origin (PDO) ‘Ribera del Xúquer’. The database contained 800 leaf samples collected in different crop phenological stages [after flowering (AF), fruit enlargement (FE), fruit colouring (FC), and harvesting HV)]. DRIS norms (78) were established for macronutrients: N, P, K, Ca, Mg and S; micronutrients B, Cu, Fe, Mn, and Zn and salinity elements: Na and Cl. The Nutrient Balance Index (NBI; the absolute value of the sum of the DRIS indices) was used to determine the optimal sampling period. Fruit enlargement was the period during which persimmon trees were more nutritionally balanced regardless of sprout origin (vegetative or floral) and irrigation type (drip or flood) in orchards

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Section: Introductionmentioning

confidence: 99%

DRIS Norms and Sufficiency Ranges for Persimmon ‘Rojo Brillante’ Grown under Mediterranean Conditions in Spain

et al. 2022

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“…Both elements are known to move into leaves through the transpiration stream (Sprugel et al, 1991). They both move in a proportionally equal influx (Klein et al, 1993). Furthermore, Mg is more mobile in plant tissues than Ca because the latter is mainly found combined in complexes.…”

Section: Effect Of Treated Sewage Water On Potassium Calcium Magnesmentioning

confidence: 99%

Effect of treated sewage water on the concentration of certain nutrient elements in date palm leaves and fruits

Mardi

Salama

Consolacion

et al. 1998

Communications in Soil Science and Plant Analysis

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Leaflet and fruit samples were collected from 9-year old palms irrigated with potable water and treated sewage water from two locations (the University and the city sewage effluent plant). After drying, ashing, and dissolution of ash by HC1, calcium (Ca), and magnesium (Mg) concentrations were determined by atomic absorption photometry; sodium (Na), and potassium (K) by flame spectrophotometry and chlorine (Cl) by titration. Results of the present study were then compared with those of 1993. Unlike the 1993 results, K, Ca, Mg, and Na concentrations did not show any significant differences in leaves or fruits. Potassium, Ca, and Mg in leaves and fruits irrigated with three types of water in 1995 showed higher concentrations than in 1993. Sodium was lower in leaves and fruits during 1995 than 1993 when treated sewage water was used, but with potable water it was higher in leaves and lower in fruits. The increase in K, Ca, and Mg and the reduction in Na were 763 ELMARDIETAL. related to summer rains in 1995. Fruits irrigated with potable water contained higher Na and lower Cl than leaves, however, with treated sewage water (University plant), leaves and fruits contained similar amounts of Na, but higher Cl in fruits; whereas with city plant treated sewage water fruits had lower Na and Cl than leaves. Sodium in the fruits irrigated with potable water increased at a higher rate (3.8x) than in leaves (1.6x), but it decreased at higher rate in fruits (0.66x) than in leaves (0.24x) irrigated with treated sewage water. The increased rate was related to higher K rate (53x) whereas the reduction in Na was related to lower K rate (29x). The ratios of Ca/Mg and Na/Ca showed similar patterns in leaves and fruits irrigated with potable water or treated sewage water. Sodium/Ca ratio was always higher in fruits than in leaves, while Ca/Mg was always higher in leaves than in fruits. The ratic of K/Na tends to be greater in the leaves when their K concentration was equal to or greater than Na concentration. However, higher Na in the leaves resulted in higher K/Na ratio in the fruits, indicating that Na replaced K. The ratio Ca/K in the two seasons was higher in leaves than in fruits irrigited with potable water, but with treated sewage water, it was higher in leaves during 1995 and higher in fruits during 1993. This indicated that when either Ca or K was higher than the other in the leaves than fruits, their ratio in the leaves will also be higher. When their concentrations in the leaves were similar, then the ratio Ca/K would be higher in the fruits.

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DRIS evaluation of persimmon (Diospyrus kaki L.)

Cited by 2 publications

References 20 publications

DRIS Norms and Sufficiency Ranges for Persimmon ‘Rojo Brillante’ Grown under Mediterranean Conditions in Spain

DRIS Norms and Sufficiency Ranges for Persimmon ‘Rojo Brillante’ Grown under Mediterranean Conditions in Spain

Effect of treated sewage water on the concentration of certain nutrient elements in date palm leaves and fruits

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