<p>Small pots limit root and shoot growth in several plant species. In this work, we investigated the effect of pot size (1.7 L and 7 L) on nodulation with <i>Bradyrhizobium japonicum</i> and soybean growth. Small pots restricted the growth of shoots and roots of inoculated and non-inoculated plants and reduced the number of nodules, confirming that pot size interfered with nodule establishment. Plants in small pots had a significant accumulation of calcium (Ca) and boron (B) in the leaves but showed minimal changes in photosynthesis-related parameters. In large pots, inoculated plants showed higher leaf nitrate concentrations and total protein contents, with lower ureide concentrations than plants in small pots. Increased nitrogen use efficiency in plants grown in large pots probably contributed to the higher chlorophyll concentration, leaf area, and pod production when compared to ones in small pots. These findings show that restricting root zone in small pots affects growth and plant nodulation, altering nitrogen metabolism in soybeans. Our results highlight the importance of using large pots in research experiments to mitigate the underestimation of various biochemical responses and better understand the physiological reaction of soybean plants to nodulation. In conclusion, the optimization of pot size in experimental setups is essential for accurately assessing the effects of rhizobial inoculation on soybean performance.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Small Pot Size Limits Soybean Growth and Affects the Symbiosis with Bradyrhizobium japonicum

  • Gabrielle Henriquetto Cassiano,
  • Jessica Faversani Diniz,
  • Bruno Spinassé Floreste,
  • Alessandro Amon Yokoyama,
  • Ana Isa Marquez Rocha Machado,
  • Rafael Vasconcelos Ribeiro,
  • Sara Adrián López de Andrade,
  • Paulo Mazzafera

摘要

Small pots limit root and shoot growth in several plant species. In this work, we investigated the effect of pot size (1.7 L and 7 L) on nodulation with Bradyrhizobium japonicum and soybean growth. Small pots restricted the growth of shoots and roots of inoculated and non-inoculated plants and reduced the number of nodules, confirming that pot size interfered with nodule establishment. Plants in small pots had a significant accumulation of calcium (Ca) and boron (B) in the leaves but showed minimal changes in photosynthesis-related parameters. In large pots, inoculated plants showed higher leaf nitrate concentrations and total protein contents, with lower ureide concentrations than plants in small pots. Increased nitrogen use efficiency in plants grown in large pots probably contributed to the higher chlorophyll concentration, leaf area, and pod production when compared to ones in small pots. These findings show that restricting root zone in small pots affects growth and plant nodulation, altering nitrogen metabolism in soybeans. Our results highlight the importance of using large pots in research experiments to mitigate the underestimation of various biochemical responses and better understand the physiological reaction of soybean plants to nodulation. In conclusion, the optimization of pot size in experimental setups is essential for accurately assessing the effects of rhizobial inoculation on soybean performance.