Stability of Relationship Between Chlorophyll Density and Soil Plant Analysis Development Chlorophyll Meter Readings in Peanut Across Different Drought Stress Conditions
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چکیده
منابع مشابه
Simple Assessment of Nitrogen Nutrition Index in Summer Maize by Using Chlorophyll Meter Readings
Rapid and non-destructive diagnostic tools to accurately assess crop nitrogen nutrition index (NNI) are imperative for improving crop nitrogen (N) diagnosis and sustaining crop production. This study was aimed to develop the relationships among NNI, leaf N gradient, chlorophyll meter (CM) readings gradient, and positional differences chlorophyll meter index [PDCMI, the ratio of CM readings betw...
متن کاملPredicting nitrogen fertilizer requirements for corn by chlorophyll meter under different N availability conditions
Rashid, M. T., Voroney, P. and Parkin, G. 2005. Predicting nitrogen fertilizer requirements for corn by chlorophyll meter under different N availability conditions. Can. J. Soil Sci. 85: 149–159. Nitrogen management strategies that enhance fertilizer use efficiency and maximize profitability in corn require a rapid and accurate method to determine the crop N needs of current hybrids. The object...
متن کاملUsing Chlorophyll Meter Readings to Determine N Application Rates for Corn
One method for refining nitrogen (N) application in corn is use of in-season crop sensing. To aid producers in making decisions regarding N rate adjustments, a calibrated relationship between sensor-derived information and expected N application need should be established. Nitrogen rate trials were conducted at multiple sites across Iowa in 2001-2003. Nitrogen was applied at or shortly after co...
متن کاملResponse of chlorophyll a fluorescence, chlorophyll content, and biomass to dust accumulation stress in the medicinal plant, Plantago lanceolata L. Mehran Alavi1*, Mozafar Sharifi1 and Naser Karimi2*
In arid and semi-arid areas of the world, excessive mineral aerosol carried by air parcels is a common climatic incident with well-known environmental side effects. In this study, the role of sand-dust accumulation was investigated on various aspects of photosynthetic yield of Plantago lanceolata including chlorophyll (Chl) a, b, effective quantum yield of PSII photosystem (ФPSII), maximal quan...
متن کاملAssociation of root, specific leaf area and SPAD chlorophyll meter reading to water use efficiency of peanut under different available soil water
Drought is the major abiotic constraint affecting peanut productivity and quality worldwide. There is a pressing need to improve the water use efficiency (WUE) of rain-fed peanut production. Breeding varieties with higher water use efficiency is seen as providing part of the solution. The objectives of this work were to (i) evaluate genetic variation in WUE, harvest index, root dry weight, spec...
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ژورنال
عنوان ژورنال: Asian Journal of Plant Sciences
سال: 2009
ISSN: 1682-3974
DOI: 10.3923/ajps.2009.102.110