Thermotolerance of pearl millet and maize at early growth stages: growth and nutrient relations

被引:105
作者
Ashraf, M [1 ]
Hafeez, M [1 ]
机构
[1] Univ Agr Faisalabad, Dept Bot, Faisalabad 38040, Pakistan
关键词
germination; high temperature; inorganic nutrients; vegetative stage;
D O I
10.1023/B:BIOP.0000024279.44013.61
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Thermotolerance of pearl millet (Pennisetum glaucum cv. ICMV-94133) and maize (Zea mays cv. Golden) was assessed at germination and vegetative stage. Final percentage of germinated seeds and rate of germination ( number of days to 50% germination) decreased due to high temperature (45degreesC) similarly in the both species. In contrast, at the vegetative stage, high temperature (38/27degreesC) caused a significant reduction in shoot dry mass of maize, whereas this attribute remained almost unchanged in pearl millet. Relative growth rate and net assimilation rate (NAR) increased significantly in pearl millet due to high temperature, but in contrast, in maize NAR was slightly reduced. Concentrations of N, P, and K in the shoots of both species increased at high temperature, but N accumulation was more pronounced in pearl millet than in maize. High temperature caused a marked increase in both shoot and root Ca2+ concentration in maize, but it did not affect that of pearl millet. S concentration in the shoots of maize decreased significantly due to high temperature, whereas that in pearl millet remained unaffected. Shoot Na+ concentration of both species was not significantly affected by high temperature. High temperature caused a significant increase in uptake of N, P, and K+ in pearl millet, but the uptake of Ca2+, Mg2+, Na+ and S remained unaffected in this species. In contrast, in maize, a significant increase in uptake of K+ and Ca2+, and a decrease in uptake of N, S, Mg2+, and Na+ were found at high temperature. Overall, maize showed lower tolerance to high temperature compared with pearl millet.
引用
收藏
页码:81 / 86
页数:6
相关论文
共 50 条
  • [21] Relative contribution of seed phosphorus reserves and exogenous phosphorus uptake to maize (Zea mays L.) nutrition during early growth stages
    Muhammad Nadeem
    Alain Mollier
    Christian Morel
    Alain Vives
    Loïc Prud’homme
    Sylvain Pellerin
    Plant and Soil, 2011, 346 : 231 - 244
  • [22] Exposure of maize seeds to stationary magnetic fields:: Effects on germination and early growth
    Florez, Mercedes
    Carbonell, Maria Victoria
    Martinez, Elvira
    ENVIRONMENTAL AND EXPERIMENTAL BOTANY, 2007, 59 (01) : 68 - 75
  • [23] Seed priming improves early seedling vigor, growth and productivity of spring maize
    Rehman, Hafeez ur
    Iqbal, Hassan
    Basra, Shahzad M. A.
    Afzal, Han
    Farooq, Muhammad
    Wakeel, Abdul
    Wang Ning
    JOURNAL OF INTEGRATIVE AGRICULTURE, 2015, 14 (09) : 1745 - 1754
  • [24] Early sprouting and first stages of growth of rice seeds exposed to a magnetic field
    Flórez, M
    Carbonell, MV
    Martínez, E
    ELECTROMAGNETIC BIOLOGY AND MEDICINE, 2004, 23 (02) : 157 - 166
  • [25] Early Growth Characterization and Antioxidant Responses of Phellodendron chinense Seedling in Response to Four Soil Types at Three Growth Stages
    Yang, Yao
    Hu, Yun-Yi
    Qian, Wen-Zhang
    Wang, Ya-Juan
    Ren, Hong-Yu
    Gao, Shun
    Cao, Guo-Xing
    FORESTS, 2023, 14 (09):
  • [26] Maize seedling phosphorus nutrition: Allocation of remobilized seed phosphorus reserves and external phosphorus uptake to seedling roots and shoots during early growth stages
    Nadeem, Muhammad
    Mollier, Alain
    Morel, Christian
    Shahid, Muhammad
    Aslam, Muhammad
    Zia-ur-Rehman, Muhammad
    Wahid, Muhammad Ashfaq
    Pellerin, Sylvain
    PLANT AND SOIL, 2013, 371 (1-2) : 327 - 338
  • [27] Investigating plasma activated water as a sustainable treatment for improving growth and nutrient uptake in maize and pea plant
    Dahal, Roshani
    Dhakal, Oat Bahadur
    Acharya, Tirtha Raj
    Lamichhane, Prajwal
    Gautam, Sandhya
    Chalise, Roshan
    Kaushik, Neha
    Choi, Eun Ha
    Kaushik, Nagendra Kumar
    PLANT PHYSIOLOGY AND BIOCHEMISTRY, 2024, 216
  • [28] Modelling early growth under different sowing conditions: A tool to predict variations in intercrop early stages
    Fayaud, Benoit
    Coste, Francoise
    Corre-Hellou, Guenaelle
    Gardarin, Antoine
    Duerr, Carolyne
    EUROPEAN JOURNAL OF AGRONOMY, 2014, 52 : 180 - 190
  • [29] Heat tolerance of early developmental stages of glacier foreland species in the growth chamber and in the field
    Marcante, Silvia
    Erschbamer, Brigitta
    Buchner, Othmar
    Neuner, Gilbert
    PLANT ECOLOGY, 2014, 215 (07) : 747 - 758
  • [30] Heat tolerance of early developmental stages of glacier foreland species in the growth chamber and in the field
    Silvia Marcante
    Brigitta Erschbamer
    Othmar Buchner
    Gilbert Neuner
    Plant Ecology, 2014, 215 : 747 - 758