Principles of design of cereal ideotypes concepts of cereal plants with high yield. The concept of ideotype in plant breeding was introduced by donald in 1968 to describe the idealized appearance of a plant variety. Plant ideotypes an ideotype for climate change is the combination of traits genes that confers the crop a satisfying adaptation to climate variability and extreme events in specific environments and under specific cropping systems climate variability climate change breeding tools. Pdf the ideotype concept and its application to the selection of. According to donald, ideotype is a biological model which is expected to perform or behave in a particular manner within a defined environment. View plant ideotype concept ppts online, safely and virusfree. Ideotype breeding aimed at modifying the plant architecture is a timetested strategy to achieve increases in yield potential. Information and translations of ideotype in the most comprehensive dictionary definitions resource on. Plant breeding is a technique through which genetic traits of a plant are changed. Identify compensation among traits, genetic variance, genetic control. Abstract ideotypes are a popular concept for plant breeders, who designate as such the ideal combinations of traits in a particular genotype to reach a preset.
In plant breeding programmes based on selection for yield, there is no. Chhabra and ravika disclaimer all s of the figures used in the present presentation lie with the original developers, the information has been gathered here for educational purpose and not for sale. Most plant breeding is based on defect elimination or selection for yield. Some desirable traits are incorporated to produce a new variety. An ideotype is a hypothetical plant described in terms of traits that are thought to enhance genetic yield potential. Thus, selection for shortstatured cereals such as wheat, rice, and sorghum resulted in a doubling of yield potential. The ideotype concept and its application to the selection of cultivars of trees providing agroforestry tree products article pdf available in forests trees and livelihoods 161 january. Ideotype breeding aimed at modifying the plant architecture is a timetested strategy to. Defining and designing plant architectural ideotypes to control. Crop ideotype its features and steps in ideotype breeding. More specifically, crop ideotype is a plant model which is expected to yield greater quantity of grains, fiber, oil or other useful product when developed as a.
Introduction to ideotype breeding in broad sense an ideotype is a biological model which is expected to perform or behave in a predictable manner within a defined environment. A valuable additional approach is available through the breeding of crop ideotypes, plants with model characteristics known to influence photosynthesis, growth and in cereals grain production. Pdf the ideotype concept and its application to the. The proposed organic crop ideotype and variety concept may benefit not only organic farming systems, but in future also conventional systems moving away from high inputs of nutrients and chemical pesticides.
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