Mostrando ítems 11-20 de 247
Sites regression and shifted multiplicative model clustering of cultivar trial sites under heterogeneity of error variances
Previous papers have developed the shifted multiplicative model with one multiplicative term (SHMM1) as a model for clustering yield trial sites or cultivars into groups in which cultivar rank changes are statistically ...
Increasing wheat yields sustainability through agronomic means
This paper examines common factors that constrain wheat yields: insufficient nutrients (using nitrogen as an example); problems of late planting and poor crop establishment; suboptimal water management; lodging; and weeds. ...
Resultados del cuarto vivero de trigos invernales y facultativos del Cono Sur (TIFCOS)
(INIA; CIMMYT, 2001)
In order to increase the availability of genetic diversity in winter and facultative wheat germplasm to the national programs in the region, Winter and Facultative Wheat Nursery of Southern Cone was started four years. The ...
Grain yield of barley as affected by cropping sequence and fertilizer application in Southeastern Ethiopia
Cropping systems in the Ethiopian highlands involve rotations of cereals with grain legume and oilseed crops; the proportional allocation among crop species varies with altitude, rainfall, and soil type. Barley (Hordeum ...