Net System of Genetic Characters of Yield Performance of Crops and Explanation for It

How did plant or crop yield was formed? This biggest difficult problem of basic study was firstly solved through untiring trying hard in thirty years, setting up ‘Net System of Genetic Characters of Yield Performance’, theory system of ‘Theoretical Genetics and Breeding Science of Crops’. This net system was anew synthesizing living body using subject theories of all plant organs or organizations, functions and metabolism etc. contained all factors forming yield performance on layers of individual and community. It marked theoretical study of genetics and breeding of crops of China was in lead level in the world. It included three composition parts, basic contradiction of yield performance, ecological adaptability theory and yield ability theory (including theory of plant type). In this paper the net system was explanted in detail. This theoretical system was touchstone examining and measuring all kinds of both phenomenon in practice of breeding, production and scientific studies and all relative theory points, highest and most basic point of plant genetics and breeding theory, not only genetics, biology, physiology, but also most basic molecule genetics and molecule biology. It broke mistake point that look upon genetics and breeding of crops as applying technique research, no both fundamental study and academic value. Mastering this theory system also mastered overall situation of inheritance and breeding of crops, also initiative right, could reform and change in appearance, create first-class crop breeding technology system and new variety. Only really mastered this theory system, could really ensured correctness, initiative and predictability of all links of crop breeding work and practice.