Physiological analyses of nitrogen use efficiency and yield traits of rice genotypes

被引：8

作者：

Devika S. ^{[1
]}

Ravichandran V. ^{[2
]}

Boominathan P. ^{[1
]}

机构：

[1] Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu

[2] Department of Rice, Tamil Nadu Agricultural University, Coimbatore, 641003, Tamil Nadu

来源：

Indian Journal of Plant Physiology | 2018年 / 23卷 / 1期

关键词：

Genotypes; Photosynthetic nitrogen use efficiency; Rice; Yield;

D O I：

10.1007/s40502-018-0358-8

中图分类号：

学科分类号：

摘要：

Nitrogen (N) is a vital element for plant development and growth, and the application of N fertilizer could significantly increase yield formation in rice. One potential approach to reduce N fertilizer application in rice production is the development of varieties with improved nitrogen use efficiency. This study was investigating the genotypic differences of rice in the physiological nitrogen use efficiency and yield traits under different nitrogen levels. The photosynthetic rate was recorded higher (36.91 μmol CO2 m−2 s−1) in the treatment of 150% of recommmended nitrogen with rice genotype CB-08-513 at 50% flowering stage. The higher SPAD meter value (44.23) and leaf thickness (0.87 mm) were recorded in the recommended nitrogen with the genotype of CB-08-513. Regarding nitrogen content, the leaf nitrogen (5.43%) and total nitrogen content (1.86%) was recorded higher in medium duration genotypes under 150% of recommmended Nitrogen level at panicle initiation stage. The Nitrogen Uptake Efficiency (1.73), Physiological Nitrogen Use Efficiency (29.39), Nitrogen Utilization Efficiency (3.17), photosynthetic nitrogen use efficiency (4.74) were lower in medium duration genotypes when treated with 150% of recommmended Nitrogen. The maximum grain yield of 9160 kg ha−1 was registered in medium duration genotype CO 50 under 150% of recommmended Nitrogen with increase of 20.62% over control. However, in short duration genotype CB-08-504 was recorded maximum grain yield of 8449 kg ha−1 under 150% of recommmended Nitrogen with increase of 21.41% compared to 50% of recommmended Nitrogen. © 2018, Indian Society for Plant Physiology.

引用

页码：100 / 110

页数：10

共 31 条

[21]

Peng S., Garcia F.V., Gines H.C., Laza R.C., Samson M.I., Sanico A.L., Visperas R.M., Cassman K.G., Et al., Nitrogen use efficiency of irrigated tropical rice established by broadcast wet-seeding and transplanting, Fertilizer Research, 45, pp. 123-134, (1996)

[22]

Quanbao Y., Hongcheng Z., Haiyan W., Ying Z., Benfo W., Ke X., Zhongyang H., Qigen D., Ke X., Et al., Effects of nitrogen fertilizer on nitrogen use efficiency and yield of rice under different soil conditions, Agriculture in China, 1, 1, pp. 30-36, (2007)

[23]

Singh H., Verma A., Physiological responses of rice cultivars to various nitrogen levels, International Journal of Agriculture, Environment & Biotechnology, 6, 3, pp. 383-388, (2013)

[24]

Singh H., Verma V., Ansari A.W., Shukla A., Et al., Physiological response of rice (Oryza sativa L.) genotypes to elevated nitrogen applied under field conditions, Plant Signaling & Behavior, 9, 7, (2014)

[25]

Tagawa T., Hirao K., Kubota F., Et al., A specific feature of nitrogen utilization efficiency in leaf photosynthesis in Oryzaglaberrima Steud, Japanese Journal of Crop Science, 69, pp. 74-79, (2000)

[26]

Vile D., Garnier E., Shipley B., Et al., Specific leaf area and dry matter content estimate thickness in laminar leaves, Annals of Botany, 96, pp. 1129-1136, (2005)

[27]

Von Caemmerer S., Evans J.R., Determination of the average partial pressure of CO<sub>2</sub> in chloroplasts from leaves of several C<sub>3</sub> plants, Australian Journal of Plant Physiology, 18, pp. 287-305, (1991)

[28]

Yang Q., Li Y.M., Xiao K., Dou Y.H., Et al., Effect of different amount of nitrogen on flag leaf senescence and yield components of wheat, Journal of Hebei Agricultural University, 25, pp. 20-24, (2002)

[29]

Yang W.H., Peng S., Huang J., Sanico A.L., Buresh R.J., Witt C., Et al., Using leaf color chart to estimate leaf nitrogen status of rice, Agronomy Journal, 95, pp. 212-217, (2003)

[30]

Yosef Tabar S., Effect of Nitrogen and Phosphorus fertilizer on growth and yield rice (Oryza sativa L.), International Journal of Agronomy and Plant Production, 3, pp. 579-584, (2012)

← 1 2 3 4 →