منابع مشابه
Relationship among physiological quality, heterosis, and amylase gene expression in maize seeds.
In this study, we analyzed heterosis, amylase enzyme gene expression, and the physiological quality of maize seeds with different genotypes and sizes, which were subjected to aging and not subjected to aging. We used seeds from 2 maize lines that differed with regard to physiological quality, the hybrid, and the reciprocal hybrid; they were classified into 2 sizes and were subjected to aging an...
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In research areas such as decision support systems, one of the crucial features is the ability to automatically explain decisions. However, this ability does not typically play a large role in computer games. Here, I suggest that this situation will change: research on the automatic generation of explanations will have real import for many types of computer games. I discuss four possible ways t...
متن کاملHeterosis: Theory and Estimation
Heterosis is the foundation of modern maize breeding programs. Despite its importance in maize production, we know surprisingly little about the genetic basis of heterosis. Shull (1952) coined the term heterosis and defined it as: "... the interpretation of increased vigor, size, fruitfulness, speed of development, resistance to disease and to insect pests, or to climatic rigors of any kind, ma...
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M A N Y hybrids between genetic pure lines in maize exhibit heterosis. The search for the genetic basis of heterosis has been carried on for many years and by many workers. Despite these efforts, an adequate, specific biochemical explanation of heterosis has not been presented. JONES (1952) has noted the interaction of nuclear genes and cytoplasm, as evidenced by differences in reciprocal cross...
متن کاملWhat Is “ Heterosis ” ? L
T IS not my purpose in this paper to present or to discuss the actual basic I causes or the fundamental mechanisms which bring about the increased size, the excessive kinetic energy, the increased productiveness, resistance to disease or to unfavorable conditions of the environment, the “stimulating effects of hybridity,” the so-called “hybrid vigor” of English writers and “Luxurieren” of many ...
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ژورنال
عنوان ژورنال: Genetics Selection Evolution
سال: 1982
ISSN: 1297-9686
DOI: 10.1186/1297-9686-14-1-106a