%0 Journal Article
%T Basic Principle and Technique System of Crop Breeding
%A Peizhan Tian
%J Open Access Library Journal
%V 2
%N 11
%P 1-4
%@ 2333-9721
%D 2015
%I Open Access Library
%R 10.4236/oalib.1102032
%X In this paper, firstly, basic contradiction between suitable ability and
yielding-ability of a variety was revealed through abstracting and generalizing
a large phenomenon in tests and productions of crops. The basic contradiction
and its movement decided yield display of a variety. Yield-ability (or yield
potential) of a variety was yield under the most suitable condition for the
variety. But in practice the variety had been often planted under relatively
unfavorable environment. It had adaptability for conditions. Secondly, nature, action
and significance of ecological traits were determined. Comparison tests using
of similar isolines of glowing period and pod bearing habit in soybean in
multiple years discovered that varieties having suitable ecotype could fuller
display its yield ability and gave better yield stability in much years Thirdly,
all of yield ability traits and reciprocal relationships among these yield
ability traits were determined, mainly on basis of research accomplishments of
crop physiology, using axiom method to set up complete theory system of yield
ability and net system of trait components. The net system of all traits of
seed yield display, basic principle of engineering of crop breeding had been
determined, and it revealed both reciprocity among all of ecological traits and
yield ability traits of a variety and forming mechanism of seed yield
performance. Technique system of crop breeding engineering and suggestions on
personnel organization system and division (coordination) in a new type of crop
institute were proposed on the basis of basic principle.
%K Basic Principle
%K Technique System
%K Crop Breeding
%U http://www.oalib.com/paper/3151556