Use of a hand‐held chlorophyll meter in winter wheat: Evaluation of different measuring positions on the leaves

References

• Blackmer , T. M. and Schepers , J. S. 1995 . Use of a chlorophyll meter to monitor nitrogen status and schedule fertigation for corn . J. Prod. Agric. , 8 : 56 – 60 .
   Google Scholar
• Castelli , F. , Contillo , R. and Miceli , F. 1996 . Non‐destructive determination of leaf chlorophyll content in four crop species . J. Agron. Crop Sci. , 177 : 275 – 283 .
   Web of Science ®Google Scholar
• Evans , J. T. 1983 . Nitrogen and photosynthesis in the flag leaf of wheat . Plant Physiol. , 72 : 297 – 302 .
   PubMed Web of Science ®Google Scholar
• Follett , R. H. , Follett , R. F. and Halvorsen , A. D. 1992 . Use of a chlorophyll meter to evaluate the nitrogen status of dryland winter‐wheat . Commun. Soil Sci. Plant Anal. , 23 : 687 – 697 .
   Web of Science ®Google Scholar
• Hydro Agri . 1993 . Improving field specific N‐recommendation . Hydro Agri Hanninghof, Internal document , : 7
   Google Scholar
• Hymowitz , T. , Dudley , J. W. , Collins , F. I. and Brown , C. M. 1974 . Estimation of protein and oil concentration in corn, soybean, and oat seed by near‐infrared light reflectance . Crop Sci. , 14 : 713 – 715 .
   Web of Science ®Google Scholar
• Krom , M. 1980 . Spectrophotometric determination of ammonia . A study of modified Berthelot reaction using salicylate and dichloroisocyanurate. The Analyst , April 1980
   Google Scholar
• Large , E. C. 1954 . Growth stages in cereals. Illustration of the Feekes scale . Plant Path. , 3 : 128 – 129 .
   Web of Science ®Google Scholar
• Ma , B. L. , Morrison , M. J. and Voldeng , H. D. 1995 . Leaf greenness and photosynthetic rates in soybean . Crop Sci. , 35 : 1411 – 1414 .
   Web of Science ®Google Scholar
• Markwell , J. , Osterman , J. C. and Mitchell , J. L. 1995 . Calibration of the Minolta SPAD‐502 leaf chlorophyll meter . Photosynthesis Res. , 46 : 467 – 472 .
   PubMed Web of Science ®Google Scholar
• Matsunaka , T. , Watanabe , Y. , Miyawaki , T. and Ichikawa , N. 1997 . Prediction of grain protein content in winter wheat through leaf color measurements using a chlorophyll meter . Soil Sci. Plant Nutr. , 43 : 127 – 134 .
   Web of Science ®Google Scholar
• Minotti , P. L. , Halseth , D. E. and Sieczka , J. B. 1994 . Field chlorophyll measurements to assess the nitrogen status of potato varieties . HortScience , 29 : 1497 – 1500 .
   Web of Science ®Google Scholar
• Monje , O. A. and Bugbee , B. 1992 . Inherent limitations of nondestructive chlorophyll meters: a comparison of two types of meters . HortScience , 27 : 69 – 71 .
   PubMed Web of Science ®Google Scholar
• Peltonen , J. , Virtanen , A. and Haggren , E. 1995 . Using a chlorophyll meter to optimize nitrogen‐fertilizer application for intensively‐managed small‐grain cereals . J. Agron. Crop Sci. , 174 : 309 – 318 .
   Web of Science ®Google Scholar
• Peng , S. , Garcia , F. V. , Laza , R. C. and Cassman , K. G. 1993 . Adjustment for specific leaf weight improves chlorophyll meter's estimate of rice leaf nitrogen concentration . Agron. J. , 85 : 987 – 990 .
   Web of Science ®Google Scholar
• Prioul , J.‐L. , Brangeon , J. and Reyss , A. 1980 . Interaction between external and internal conditions in the development of photosynthetic features in a grass leaf. I. Regional responses along a leaf during and after low‐light or high‐light acclimation . Plant Phys‐iol. , 66 : 762 – 769 .
   PubMed Web of Science ®Google Scholar
• Reeves , D. W. , Mask , P. L. , Wood , W. and Delaney , D. P. 1993 . Determination of wheat nitrogen status with a hand‐held chlorophyll meter: influence of management practices . J. Plant Nutr. , 16 : 781 – 796 .
   Web of Science ®Google Scholar
• Schepers , J. S. , Francis , D. D. , Vigil , M. and Below , F. E. 1992 . Comparison of corn leaf nitrogen concentration and chlorophyll meter readings . Commun. Soil Sci. Plant Anal. , 23 : 2173 – 2187 .
   Web of Science ®Google Scholar
• Seemann , J. R. , Sharkey , T. D. , Wang , J. and Osmond , C. B. 1987 . Environmental effects on photosynthesis, nitrogen‐use efficiency, and metabolite pools in leaves of sun and shade plants . Plant Physiol. , 84 : 796 – 802 .
   PubMed Web of Science ®Google Scholar
• Zadoks , J. C. , Chang , T. T. and Konzak , C. F. 1974 . A decimal code for the growth stages of cereals . Weed Res. , 14 : 415 – 421 .
   Web of Science ®Google Scholar