Effects of soil drought and air temperature on the contents of phenolic compound in relation to astringency of peach fruits.
スポンサーリンク
概要
- 論文の詳細を見る
The weight of harvested fruits, and the contents of total soluble solids and phenolic compounds were determined in four peach cultivars (<I>Prunus persica</I> BATSCH) planted in plastic containers grown under different conditions of soil moisture and air temperature.<BR>Using the peach trees, cv.'Takei Hakuho'grafted on <I>P. persica</I>, and cv.'Sanyo Suimitsu'grafted on <I>P. persica</I> or <I>P. tomentosa</I> THUNB., soil moisture tension (pF) was maintained for each stage of fruit growth such as an early period (Stage 1), a stone-hardening period (Stage 2), and a maturation period (Stage 3) at 2.3 to 2.7 by withdrawing water. Whereas in the control pF was maintained at 1.0 to 1.5 throughout experiments. Later time of the drought treatments resulted in later maturation of fruits in either cultivar. In both'Takei Hakuho, 'and'Sanyo Suimitsu'grafted on P. <I>tomentosa</I>, the smallest fruit and the highest content of phenolic compound in the fruit were observed in the drought plot during the Stage 3. In 'anyo Suimitsu'grafted on <I>P. persica, </I> the content of phenolic compound was high not only in the drought plot during the Stage 3, but also in the control one.<BR>When peach trees, cv.'Saotome'and'Chikuma'grafted on <I>P. persica</I> were grown under four different air temperatures throughout Stages 2 and 3, the content of phenolic compound in the fruit was higher in the plots of 15°C and 20°C than in those of 30°C and the control, in which plants were grown outdoors throughout experiments. In'Sanyo Suimitsu' peach trees on <I>P. persica</I> grown at 20°C and 30°C of air temperatures during Stages 2 or 3, the content of phenolic compound was higher at 20°C than at 30°C in either stage, and it was also higher in the treatments of Stage 3 than in those of Stage 2 for both temperatures. Regardless of cultivar, at any plot treated with constant air temperatures of 15°C, 20°C, and 30°C, fruit weight was small, compared to the control. Average air temperature outdoors was 22.8°C or higher throughout the treatments.<BR>From these results, it is considered that soil drought and low air temperature during the Stage 3 of fruit growth is closely related to the occurrence of astringency in peach fruits.
- 日本生物環境工学会の論文
日本生物環境工学会 | 論文
- 温室における燃焼式蓄熱型二酸化炭素施肥システムの省エネルギー性・環境負荷低減性・経済性評価
- 高濃度培養液を用いる高糖度トマト生産に適した循環キャピラリー栽培システムの開発
- 2種のUV励起光によるラッカセイ生葉のLIFスペクトル変化および蛍光葉内分布
- ナメコ子実体の光形態形成過程における発現遺伝子の解析
- 光の波長と環境温度がナメコの生体電位および形態形成に及ぼす影響