were tested at Wujiang nursery in March,2004.The ground diameter(D) and height(H) of each ramet were investigated in March,2005.A significant variation of growth was found among clones based on the results of ANOVA,thus,it was profitable to make clonal selection at nursery. The broad-sense heritabilities of ground diameter and height were 0.2029 and 0.2673 respectively.
Four clonal varieties of Lu Poplar 31,6,70 and 69 have been selected by crossing Shanhaiguan Poplar with Tower Simon Poplar and the clonal selection. These four clones have advantages of easy to breed,narrow crown,stronger salt enduring and growth better than Balizhuang Poplar. They are suitable for building field forest net and alternation of forest and crop on inland mildly alkaline soil.
This paper studies China fir in the respect of superior clone selection during seedling stage. We adopt the ameliorating comparision and random regional group method in the field design, investigate every tree in the experimental field many times, and make a statistical analysis of the data from 33 000 groups.
Chromosome Rearrangement Breakpoint Clustering: The Role of Clonal Selection
A special attention is paid to the analysis of intracellular signals underlying the clonal selection of thymocytes.
Some reaction rules including clonal selection rules, immunological memory rules and immune regulation rules are introduced.
In addition to its nonlinear classification properties, APAI possesses biological immune network properties such as clonal selection, immune network, and immune memory, which can be applied to pattern recognition, classification, and etc.
A clonal selection algorithm for null synthesizing of linear antenna arrays by amplitude control