テンサイ一代雑種およびそれらの親系統の個葉における気孔コンダクタンス,蒸散速度および純光合成速度の系統間差

DOI Web Site 参考文献9件 オープンアクセス
  • 臼井 靖浩
    国立研究開発法人 農業・食品産業技術総合研究機構 中日本農業研究センター
  • 田口 和憲
    国立研究開発法人 農業・食品産業技術総合研究機構 中日本農業研究センター
  • 平藤 雅之
    東京大学 大学院農学生命科学研究科 附属生態調和農学機構

書誌事項

タイトル別名
  • Differences of the stomatal conductance, transpiration rate and net photosynthesis rate between F<sub>1</sub>s and their parents in sugar beet(<i>Beta vulgaris</i> ssp. <i>vulgaris</i>)

抄録

To investigate the effect of surface temperature (Tc) differences and to clarify the plant physiological differences between F1s (F1:First filial generation) and their parents, we analyzed the differences of the stomatal conductance (gs), transpiration rate (E) and net photosynthesis rate (A) among six sugar beet genotypes.<br> Three of the genotypes: “NK195BR”, “NK235BR” and “NK388” were tested as parents, while the other three “NK235BR×NK195BR”, “NK195BR×NK388” and “NK235BR×NK388” were tested as F1s. From the comparison of the mean Tc value of six genotypes measured at 6 hours (from 10:00 to 16:00), the results, in descending order of their value, showed “NK235BR” > “NK388” > “NK195BR” > “NK195BR×NK388” > “NK235BR×NK195BR” > “NK235BR×NK388”.<br> To analyze the relationship between Tc and plant physiology, gs, E and A were measured at six times during mid-growing season. As a result, gs and E had a significant varietal difference among the six genotypes every measurement. Both the gs and E values of F1s had a trend higher than those of their parents. A comparison between gs and the differences between Tc and air temperature (ΔT), revealed that the two had a negative liner correlation such that the higher the gs was, the lower the ΔT. On the other hand, A had a significant varietal difference depending on the day. However, there was no clear relationships to indicate that F1s had a trend higher than those of their parents. <br> In relation to yield component and plant physiological properties, root weight and sugar yield were significantly correlated with both of gs and E and had no significant correlation with the sugar content. On the other hand, A had no significant correlation with root weight, sugar content or sugar yield.

収録刊行物

  • 生物と気象

    生物と気象 22 (0), 75-84, 2022-10-10

    日本農業気象学会

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