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Agronomic and socio-economic constraints to high yield of upland rice in Tanzania
NERICA adaptability soil fertility upland rice agro-ecosystems productivity
2011/1/10
A field survey was conducted in March 2009 in upland rice growing agro-ecosystem of four districts in Tanzania namely Ulanga, Kyela, Morogoro and Korogwe to investigate the agronomic and socio-economi...
Characteristics of Dry Matter Production Process in High-Yield Rice Varieties:VI. Comparisons between new and old rice varieties
Dry matter production Harvest index High-yield variety Light extinction coefficient New and old varieties Rice plant Single-leaf photosynthesis
2009/8/4
Differences in yield, dry matter production, and harvest index between new (registered after 1955) and old (before 1940) Japanese rice varieties were examined with reference to light-intercepting char...