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Now showing items 1-10 of 184
Article
Technical change and returns to wheat breeding research in Pakistan's Punjab in the post-green revolution period
(The Pakistan Institute of Development Economics, 1993)
Report
Yaqui Valley 1989-90 wheat crop survey
(CIMMYT, 1990)
Book
Optimal search in ex situ collections of wheat genetic resources
(CIMMYT, 1998)
This paper develops a theoretical model for analyzing gene bank management decisions regarding the search for traits of economic value in ex situ collections of wheat. The model is applied to data on the probability of ...
Book
Adoption and impact of high yielding wheat varieties in Northern Tunisia
(CIMMYT, 1996)
This study assesses the extent to which durum and bread wheat high yielding varieties (HYVs) have been adopted by farmers in northern Tunisia, a region which accounts for more than 80 degrees ' of the nation's durum wheat ...
Book
Utilizing wild grass biodiversity in wheat improvement: 15 years of wide cross research at CIMMYT
(CIMMYT, 1995)
For the first time, this report brings together detailed accounts of new knowledge and techniques developed through wheat wide crosses research at CIMMYT since this work was initiated in 1979. Beginning with a summary of ...
Book
In situ conservation of crops and their relatives: a review of current status and prospects for wheat and maize
(CIMMYT, 1996)
This paper reviews the current status and prospects for in situ conservation of maize and wheat and their relatives. The caricature of in situ conservation-that it imposes cultural stasis and isolation on marginal ...
Article
Response of bread wheat to rate and timing of nitrogen application in marginal rainfall zone in Ethiopia
(African Crop Science Society, 1994)
Nitrogen fertilizer rate by timing trials were conducted on bread wheat (Triticum aeslivum L) in peasant farmers' fields during two annual cropping seasons for three years in a drought-prone district of southeastern Ethiopia. ...
Article
Effect of nitrogen fertiliser applied to tef on the yield and N response of succeeding tef and durum wheat on a highland vertisol
(African Crop Science Society, 1999)
A trial was conducted on an Ethiopian Vertisol from 1990 to 1995 to determine the residual effect of fertiliser N applied to tef (Eragrostis tef) following chickpea (Cicer arietinum) on the grain and straw yield, N content, ...
Article
Grass weed competition and calculated economic threshold densities in bread wheat in Ethiopia
(African Crop Science Society, 1997)
Competition effects of four of the predominant grass weed species in Ethiopia (Avena abyssinica Hoechst, Lolium temulentum L., Snowdenia polystachya Fresen (Pilg), and Phalaris paradoxa L.) on the grain yield, yield ...
Book
Accelerating the transfer of wheat breeding gains to farmers: a study of the dynamics of varietal replacement in Pakistan
(CIMMYT, 1990)
This publication is the first in a new series of reports that document specific CIMMYT research efforts. This series is directed toward technical audiences, and each publication synthesizes the results of research that has ...