Genotypic Differences in Nitrogen Uptake and Utilization for Grain Yield of Rice
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Abstract
A field experiment was conducted to investigate the variation of nitrogen(N) use eficiency, nitrogen uptake efficiency,and their relationships with grain yield in 34 rice genotypes. Significant diferences among genotypes were observed in grain yield,N uptake, total dry matter (TDM), and harvest index (HI). The N-eficient genotypes that produced high grain yield at both lowand standard levels of N were, Ilpumbyeo(MNU)77-GH1-3, Ilpumbyeo, and SR19616-2B-34-3. Inefficient genotypes that pro-genotypes giving low yields at both and standard levels. Increase in grain yield was highly correlated with N uptake (r2 = 0.65***)and TDM was also similarly correlated with N uptake. The grain yield-N uptake relationship for individual genotypes indicatedsignificant diference in slope and in the yield obtained with soil N (GY0). Differences in GY0 were due to genotypic variation inN uptake and efficiency of use. HI was related to both grain yield and TDM.
참고문헌 (13)
- "Genotypic variation in biomass production and nitrogen use efficiency in pearl millet[Pennisetum americanum Genetic Aspects of Plant and Mineral Nutrition", pp.281~286, Martinus Nijhoff Publishers
- "Evidence for differences between cultivars in responsiveness of wheat to applied nitrogen", pp.363~377
- "Response of maize inbred lines to N fertilizer", pp.723~728
- "Measurement of nitrogen utilization efficiency in rice genotypes", pp.786~791
- "Methodology for evaluating nitrogen utilization efficiency by rice genotypes", pp.793~798
- "Development changes related to nitrogen-use efficiency in rice", pp.127~142
- "Plant efficiencies in the use of nitrogen Plant adaptation to mineral stress in problem soils", pp.161~173, Cornell Univ
- "Efects of nitrogen fertilization and recurrent selection on performance of hybrid population of Corn", pp.955~958
- "Innovative nitrogen management strategies for lowland rice systems Fragile lives in fragile ecosystems", pp.786~791
- "Genotypic variation in nitrogen use efficiency in medium-and long-duration rice", pp.35~53
- "Grain yield performance of rice genotypes at suboptimal levels of soil N as affected by N uptake and utilization efficiency", pp.127~142
- "Screening techniques for plant nutrient efficiency philosophy and methods Genetic aspects of plant mineral nutrition", pp.283~289, Kluwer Academic Publishers
- "New trend in rice crop production enhancement of nutrient use efficiency New Frontiers in Rice Research", pp.290~299