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Archive for June, 2012

Genotype-by-environment interactions (GxE)

Genotype x environment (GxE) interaction occurs when different genotypes respond differently to different environments. GxE varies with the material tested and the sites chosen for testing (Darbeshwar 2000). Especially complex inherited, quantitative traits are influenced by environmental effects. As with breeding only the genetic effect can be modified the ratio of the genetic effect within [...]

June 24th, 2012
Topic: Crop Science, Plant breeding Tags: None

Spectral reflectance indices

Leaf pigments absorb light strongly in the photosynthetic active radiation region (PAR, 400-700 nm) but not in the near infrared region (NIR), thus reducing the reflection of PAR but not of NIR (700-1200 nm) (Araus et al. 2001). Such a pattern of pigment absorption determines the characteristic reflectance signature of leaves. While leaf reflectance is [...]

June 5th, 2012
Topic: Crop Science, Plant breeding Tags: None