Welcome to Acta Agronomica Sinica,

Acta Agron Sin ›› 2007, Vol. 33 ›› Issue (04): 677-681.

• RESEARCH NOTES • Previous Articles     Next Articles

Effects of High Temperature and Shading Stress after Anthesis on Endogenous Hormone Contents and Filling Process in Wheat Grain

LIU Xia12,MU Chun-Hua2,YIN Yan-Ping1,JIANG Chun-Ming1,WANG Zhen-Lin1*   

  1. 1 Agronomy College, Shandong Agricultural University / Key Laboratory of Wheat Cultivation Physiology and Genetic Improvement, Ministry of Agriculture / Shandong Provincial Laboratory of Crop Biology, Tai’an 271018, Shandong; 2 Institute of Maize, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong, China
  • Received:2006-07-16 Revised:1900-01-01 Online:2007-04-12 Published:2007-04-12

Abstract:

The overcast, rainy, weak light or preternatural high temperature weather, which badly affects the grain weight, frequently occurs after anthesis. Previous studies have indicated that the effects of ecological factor on wheat grain weight were realized by changing the endogenous hormone contents. While little information is available on grain filling process and endogenous hormone contents under high temperature and light stress after anthesis of wheat. Therefore, effects of high temperature, shading stress and double stress of them after anthesis on grain filling process and endogenous hormone contents of wheat were investigated. Compared with CK, all stress treatments obviously reduced kernel weight and the effect of double stress of high temperature and shading at metaphase on kernel weight was the most significant. The decline of single kernel weight was mainly caused by the decrease of slight-increase period filling rate and mean filling rate, and not by filling duration, which had a little effect on kernel weight. The changes of mean filling rate, maximum filling rate, slow-increase period filling rate, fast-increase period filling rate and slight-increase period filling rate were attributed to a decrease of GA3 or increase of ABA in the grains during grain filling. The correlations among changing rates of endogenous hormones indole-3-acetic acid (IAA), gibberellin (GA3), zeatin riboside (ZR), and abscisic acid (ABA) as well as mean filling rate in grain were analyzed. The results showed that the grain filling rate was mainly regulated at the early grain filling stages (7 to 12 days after anthesis) and late grain filling stages(19 to 28 days after anthesis) by GA3 and at middle grain filling stages(12 to 19 days after anthesis) by ABA. The correlation of the mean filling rate with ABA was closer than that with GA3. No significant correlation was found between grain filling rate and the changes of ZR or IAA content during the whole grain filling period.

Key words: Wheat, High temperature, Shading, Double stress, Endogenous hormones, Grain, Filling process

[1] ZHENG Xiao-Long, ZHOU Jing-Qing, BAI Yang, SHAO Ya-Fang, ZHANG Lin-Ping, HU Pei-Song, WEI Xiang-Jin. Difference and molecular mechanism of soluble sugar metabolism and quality of different rice panicle in japonica rice [J]. Acta Agronomica Sinica, 2022, 48(6): 1425-1436.
[2] YAN Jia-Qian, GU Yi-Biao, XUE Zhang-Yi, ZHOU Tian-Yang, GE Qian-Qian, ZHANG Hao, LIU Li-Jun, WANG Zhi-Qin, GU Jun-Fei, YANG Jian-Chang, ZHOU Zhen-Ling, XU Da-Yong. Different responses of rice cultivars to salt stress and the underlying mechanisms [J]. Acta Agronomica Sinica, 2022, 48(6): 1463-1475.
[3] CHEN Jing, REN Bai-Zhao, ZHAO Bin, LIU Peng, ZHANG Ji-Wang. Regulation of leaf-spraying glycine betaine on yield formation and antioxidation of summer maize sowed in different dates [J]. Acta Agronomica Sinica, 2022, 48(6): 1502-1515.
[4] XU Tian-Jun, ZHANG Yong, ZHAO Jiu-Ran, WANG Rong-Huan, LYU Tian-Fang, LIU Yue-E, CAI Wan-Tao, LIU Hong-Wei, CHEN Chuan-Yong, WANG Yuan-Dong. Canopy structure, photosynthesis, grain filling, and dehydration characteristics of maize varieties suitable for grain mechanical harvesting [J]. Acta Agronomica Sinica, 2022, 48(6): 1526-1536.
[5] HU Wen-Jing, LI Dong-Sheng, YI Xin, ZHANG Chun-Mei, ZHANG Yong. Molecular mapping and validation of quantitative trait loci for spike-related traits and plant height in wheat [J]. Acta Agronomica Sinica, 2022, 48(6): 1346-1356.
[6] GUO Xing-Yu, LIU Peng-Zhao, WANG Rui, WANG Xiao-Li, LI Jun. Response of winter wheat yield, nitrogen use efficiency and soil nitrogen balance to rainfall types and nitrogen application rate in dryland [J]. Acta Agronomica Sinica, 2022, 48(5): 1262-1272.
[7] LEI Xin-Hui, WAN Chen-Xi, TAO Jin-Cai, LENG Jia-Jun, WU Yi-Xin, WANG Jia-Le, WANG Peng-Ke, YANG Qing-Hua, FENG Bai-Li, GAO Jin-Feng. Effects of soaking seeds with MT and EBR on germination and seedling growth in buckwheat under salt stress [J]. Acta Agronomica Sinica, 2022, 48(5): 1210-1221.
[8] KE Jian, CHEN Ting-Ting, WU Zhou, ZHU Tie-Zhong, SUN Jie, HE Hai-Bing, YOU Cui-Cui, ZHU De-Quan, WU Li-Quan. Suitable varieties and high-yielding population characteristics of late season rice in the northern margin area of double-cropping rice along the Yangtze River [J]. Acta Agronomica Sinica, 2022, 48(4): 1005-1016.
[9] FU Mei-Yu, XIONG Hong-Chun, ZHOU Chun-Yun, GUO Hui-Jun, XIE Yong-Dun, ZHAO Lin-Shu, GU Jia-Yu, ZHAO Shi-Rong, DING Yu-Ping, XU Yan-Hao, LIU Lu-Xiang. Genetic analysis of wheat dwarf mutant je0098 and molecular mapping of dwarfing gene [J]. Acta Agronomica Sinica, 2022, 48(3): 580-589.
[10] CHEN Yun, LI Si-Yu, ZHU An, LIU Kun, ZHANG Ya-Jun, ZHANG Hao, GU Jun-Fei, ZHANG Wei-Yang, LIU Li-Jun, YANG Jian-Chang. Effects of seeding rates and panicle nitrogen fertilizer rates on grain yield and quality in good taste rice cultivars under direct sowing [J]. Acta Agronomica Sinica, 2022, 48(3): 656-666.
[11] FENG Jian-Chao, XU Bei-Ming, JIANG Xue-Li, HU Hai-Zhou, MA Ying, WANG Chen-Yang, WANG Yong-Hua, MA Dong-Yun. Distribution of phenolic compounds and antioxidant activities in layered grinding wheat flour and the regulation effect of nitrogen fertilizer application [J]. Acta Agronomica Sinica, 2022, 48(3): 704-715.
[12] LIU Yun-Jing, ZHENG Fei-Na, ZHANG Xiu, CHU Jin-Peng, YU Hai-Tao, DAI Xing-Long, HE Ming-Rong. Effects of wide range sowing on grain yield, quality, and nitrogen use of strong gluten wheat [J]. Acta Agronomica Sinica, 2022, 48(3): 716-725.
[13] XU Long-Long, YIN Wen, HU Fa-Long, FAN Hong, FAN Zhi-Long, ZHAO Cai, YU Ai-Zhong, CHAI Qiang. Effect of water and nitrogen reduction on main photosynthetic physiological parameters of film-mulched maize no-tillage rotation wheat [J]. Acta Agronomica Sinica, 2022, 48(2): 437-447.
[14] YANG Jin, BAI Ai-Ning, BAI Xue, CHEN Juan, GUO Lin, LIU Chun-Ming. Phenotypic and genetic analyses of a rice mutant eed1 with defected embryo and endosperm development [J]. Acta Agronomica Sinica, 2022, 48(2): 292-303.
[15] ZHOU Jie-Qiang, ZHANG Gui-Lian, DENG Hua-Bing, MING Xing-Quan, LEI Bin, LI Fan, TANG Wen-Bang. Advantages of small grain male sterile lines in seed production for a new combination Zhuoliangyou 141 through the mixed-sowing manner [J]. Acta Agronomica Sinica, 2022, 48(2): 320-331.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!