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[Effects of nitrogen supply on flag leaf photosynthesis and grain starch accumulation of wheat from its anthesis to maturity under drought or waterlogging].
Ying Yong Sheng Tai Xue Bao 2005; 16(10):1883-8YY

Abstract

In this paper, a cement pool culture experiment with three water treatments (waterlogging, drought, and moderate water supply) and two nitrogen levels (120 and 240 kg x hm(-2)) was conducted to study the effects of nitrogen supply on the flag leaf photosynthesis and grain starch accumulation of two wheat varieties from anthesis to maturity under soil drought and waterlogging. In comparing with moderate water supply, soil drought and waterlogging reduced the photosynthesis rate (Pn) and SPAD of flag leaf and dry matter accumulation. Nitrogen supply under drought increased Pn and SPAD, while that under waterlogging was in adverse. The total soluble sugar content in grain was reduced under both drought and waterlogging, while that in leaf was decreased under waterlogging but increased under drought. Under waterlogging, increasing nitrogen application rate reduced starch accumulation. The unit grain weight and the yields of grain and starch were reduced under both drought and waterlogging, but nitrogen application favored them under drought while in adverse under waterlogging. It was indicated that both leaf photosynthesis and grain starch accumulation could be regulated by nitrogen supply under stress of soil drought or waterlogging from anthesis to maturity of wheat.

Authors+Show Affiliations

Key Laboratory of Crop Growth Regulation, MOA, Nanjing Agricultural University, Nanjing 210095, China. fanxm@njau.edu.cnNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article
Research Support, Non-U.S. Gov't

Language

chi

PubMed ID

16422508

Citation

Fan, Xuemei, et al. "[Effects of Nitrogen Supply On Flag Leaf Photosynthesis and Grain Starch Accumulation of Wheat From Its Anthesis to Maturity Under Drought or Waterlogging]." Ying Yong Sheng Tai Xue Bao = the Journal of Applied Ecology, vol. 16, no. 10, 2005, pp. 1883-8.
Fan X, Jiang D, Dai T, et al. [Effects of nitrogen supply on flag leaf photosynthesis and grain starch accumulation of wheat from its anthesis to maturity under drought or waterlogging]. Ying Yong Sheng Tai Xue Bao. 2005;16(10):1883-8.
Fan, X., Jiang, D., Dai, T., Jing, Q., & Cao, W. (2005). [Effects of nitrogen supply on flag leaf photosynthesis and grain starch accumulation of wheat from its anthesis to maturity under drought or waterlogging]. Ying Yong Sheng Tai Xue Bao = the Journal of Applied Ecology, 16(10), pp. 1883-8.
Fan X, et al. [Effects of Nitrogen Supply On Flag Leaf Photosynthesis and Grain Starch Accumulation of Wheat From Its Anthesis to Maturity Under Drought or Waterlogging]. Ying Yong Sheng Tai Xue Bao. 2005;16(10):1883-8. PubMed PMID: 16422508.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Effects of nitrogen supply on flag leaf photosynthesis and grain starch accumulation of wheat from its anthesis to maturity under drought or waterlogging]. AU - Fan,Xuemei, AU - Jiang,Dong, AU - Dai,Tingbo, AU - Jing,Qi, AU - Cao,Weixing, PY - 2006/1/21/pubmed PY - 2007/2/3/medline PY - 2006/1/21/entrez SP - 1883 EP - 8 JF - Ying yong sheng tai xue bao = The journal of applied ecology JO - Ying Yong Sheng Tai Xue Bao VL - 16 IS - 10 N2 - In this paper, a cement pool culture experiment with three water treatments (waterlogging, drought, and moderate water supply) and two nitrogen levels (120 and 240 kg x hm(-2)) was conducted to study the effects of nitrogen supply on the flag leaf photosynthesis and grain starch accumulation of two wheat varieties from anthesis to maturity under soil drought and waterlogging. In comparing with moderate water supply, soil drought and waterlogging reduced the photosynthesis rate (Pn) and SPAD of flag leaf and dry matter accumulation. Nitrogen supply under drought increased Pn and SPAD, while that under waterlogging was in adverse. The total soluble sugar content in grain was reduced under both drought and waterlogging, while that in leaf was decreased under waterlogging but increased under drought. Under waterlogging, increasing nitrogen application rate reduced starch accumulation. The unit grain weight and the yields of grain and starch were reduced under both drought and waterlogging, but nitrogen application favored them under drought while in adverse under waterlogging. It was indicated that both leaf photosynthesis and grain starch accumulation could be regulated by nitrogen supply under stress of soil drought or waterlogging from anthesis to maturity of wheat. SN - 1001-9332 UR - https://www.unboundmedicine.com/medline/citation/16422508/[Effects_of_nitrogen_supply_on_flag_leaf_photosynthesis_and_grain_starch_accumulation_of_wheat_from_its_anthesis_to_maturity_under_drought_or_waterlogging]_ DB - PRIME DP - Unbound Medicine ER -