Early indirect selection for nitrogen use efficiency in maize
نویسندگان
چکیده
منابع مشابه
Physiological and Genetic Mechanisms for Nitrogen-Use Efficiency in Maize
Due to the strong influence of nitrogen (N) on plant productivity, a vast amount of N fertilizers is used to maximize crop yield. Over-use of N fertilizers leads to severe pollution of the environment, especially the aquatic ecosystem, as well as reducing farmer's income. Growing of N-efficient cultivars is an important prerequisite for integrated nutrient management strategies in both lowand h...
متن کاملBiotechnology Approaches to Improving Maize Nitrogen Use Efficiency
Nitrogen (N) is an essential and often limiting nutrient to plant growth. Maize grain yields are highly responsive to supplemental N, leading to annual application of an estimated 10 million metric tons of N fertilizer to the maize crop worldwide (FAO 2004). Nearly all cultivated maize in developed countries receives some form of N fertilizer and N use is increasing in developing countries, whe...
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متن کاملTowards a better understanding of the genetic and physiological basis for nitrogen use efficiency in maize.
To enhance our understanding of the genetic basis of nitrogen use efficiency in maize (Zea mays), we have developed a quantitative genetic approach by associating metabolic functions and agronomic traits to DNA markers. In this study, leaves of vegetative recombinant inbred lines of maize, already assessed for their agronomic performance, were analyzed for physiological traits such as nitrate c...
متن کاملStudy of genetic diversity in bread wheat germplasm using nitrogen uptake and nitrogen use efficiency characteristics
In order to evaluate the traits related to nitrogen utilization and to identify the superior genotypes, 33 bread wheat landraces along three check cultivars of Chamran and Koohdasht (from Iran) and Gobustan (from the Republic of Azerbaijan) were studied in simple lattice statistical design with two replications under two treatments of non-usage and application of 200 kg/ha ammonium nitrate fert...
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ژورنال
عنوان ژورنال: REVISTA CIÊNCIA AGRONÔMICA
سال: 2015
ISSN: 1806-6690
DOI: 10.5935/1806-6690.20150016