キリンソウと四季の彩り日記屋上緑化システム株式会社
技術顧問　山下 律正

213

耐候性　セダム以上の性能があるのか？

Weather resistance: Does it have better performance than sedum?

６２日間の旱（ひでり）耐性

62 days of drought resistance

６２日間の旱（ひでり）試験　（耐乾燥性試験）　　

試 験 品 種 ：四季彩6

試　験　体　：9か月育成苗

条　　　件　：透明波板軒下直下2ｍ壁面側、９か月育成ポットをざる容器に置き試験を行う

無潅水、無肥料、無農薬

置き場所方位：南南西

開 始 日 時 ：２０２３年5月31日～8月1日　62日間

試験終了日　：２０２３年8月1日

62 days of drought resistance

Test variety: Shikisai 6

Trial body: 9 month grown seedlings

Condition: Place the 9-month growth pot in a sieve container and conduct the test 2m directly below the eaves of the transparent corrugated plate on the wall side. No irrigation, no fertilizers, no pesticides

Location direction: south-southwest

Start date and time: May 31, 2023 to August 1, 2023, 62 days

Exam end date: August 1, 2023

試験結果　Test results

四季彩６　３試験体を用意し　試験開始、３５日経過、６２日経過の経過を観察し、旱状態が成体に及ぼす影響を観察した。

Three test specimens of Shikisai 6 were prepared, and the progress of the test was observed after the start of the test, 35 days had passed, and 62 days had passed, and the effects of drought conditions were observed.

試験開始：２０２３年5月31日　Exam start: May 31, 2023

２０２３年７月５日：３５日経過　July 5, 2023: 35 days have passed

下葉が多少落葉する以外に変化なし　There is no change other than some lower leaves falling off.

２０２３年8月1日：６２日経過　August 1, 2023: 62 days have passed

３件共枯損なし、葉の委縮は認められるが生育に支障なし

新芽の発芽あり、四季彩６は生体の生育活力が有り６２日の無潅水・夏季日射の環境では衰退より成長のステージを進む活力が認められる。

None of the 3 test specimens died, and leaf atrophy was observed, but no problem with growth. New shoots have sprouted, and Shikisai 6 has vitality for biological growth, and in an environment with 62 days of no irrigation and summer sunlight, the vitality to progress through the growth stage rather than decline is observed.

詳細写真
四季彩６　ひでり影響の詳細写真　

Shikisai 6 Effect of drought Detailed photos

試験開始：２０２３年5月31日　　Exam start: May 31, 2023

２０２３年8月1日：６２日経過　　August 1, 2023: 62 days have passed

葉の色：灰濃緑色　葉形状：下葉は上面に反りが発生

Leaf color: Grayish dark　green 　　Leaf shape: Lower leaves are curved on the upper surface

葉の裏側：生育大型茎の葉裏には萎縮が見られる　変色無し

Underside of leaves: Atrophy can be seen on the underside of leaves of growing large stems, no discoloration.

６２日経過経過中でも、新芽の発生・成長を進めており６２日（２ヵ月）程度の無潅水・ひでり環境でも成長できることが確認された。

Even after 62 days, new sprouts are still emerging and growing. It was confirmed that it can grow without irrigation or in a drought environment for about 62 days (2 months).

試験結果

①    株の枯損無し、葉のしおれ・枯れ発生

②    ひでりによる生育障害（茎が赤くなる）

③    充分育成した苗では、植栽後3０日程度のひでりが継続しても死滅はない

Test results

① No plant damage, no wilting or withering of leaves.

② Growth disorder due to sunburn (stems turn red)

③ Sufficiently grown seedlings will not die even if they are exposed to heat for about 30 days after planting.

技術顧問　山下律正

Technical Advisor: Ritsumeikan Yamashita