ESTIMATING WATER STRESSED DWARF GREEN BEAN PIGMENT CONCENTRATION THROUGH HYPERSPECTRAL INDICES

Köksal E. S., Ustun H., Ozcan H., Gunturk A.

PAKISTAN JOURNAL OF BOTANY, cilt.42, sa.3, ss.1895-1901, 2010 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 42 Sayı: 3
  • Basım Tarihi: 2010
  • Dergi Adı: PAKISTAN JOURNAL OF BOTANY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1895-1901
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

In this study, the relationship between leaf pigment concentration (analyzed in the laboratory) and four spectral indexes (measured in the field) was investigated. For this purpose, field experiments consisting of six different irrigation treatments were conducted with dwarf green beans during 2005 growing season. Based on spectral data, spectral indexes were plotted against pigment concentration. Results showed that under water stress, the chlorophyll and carotene contents of green bean leaves rose. According to linear regression analysis between spectral indexes and pigment contents, the Normalized Difference Pigment Chlorophyll Index (NPCI) and Normalized Difference Vegetation Index (NDVI) had the highest correlations with the chlorophyll (a, b and total), and carotene content of leaves.