報告書番号

485013

タイトル（和文）

電源立地点の藻場造成技術の開発第２報アマモの生育に及ぼす移植条件の影響

タイトル（英文）

DEVELOPMENT OF THE TECHNIQUES FOR MARINE MACROPHYTE BED CREATION IN THE COASTAL ZONE NEAR A POWER PLANT 2-EFFECT OFTRANSPLANTING CONDITIONS ON THE GROWTH OF ZOSTERA MARINA

概要 （図表や脚注は「報告書全文」に掲載しております）

アマモ種苗の移植によるアマモ場造成技術の開発にあたり，移植された草体の枯死，地下茎および根の発達等に関する知見を得て，主にアマモの生育に及ぼす移植条件の影響を明らかにすることを目的として培養実験を行った。結果の概要は以下の通り。（１）小田和湾産アマモの植え付け時期別生育特性１）移植適期内の１２月移植により，盛んな栄養生長の後生殖生長へ導く。２）花枝および主茎の枯死・脱落時期にも，側茎（栄養株）は生育している。（２）アマモの生育に及ぼす移植条件の影響１）種苗の根の損傷は移植後の生育に殆んど影響しない。２）種苗の地下茎節数は移植後の生育には殆んど影響しない。３）種苗の植え付け深さが葉条長の

概要 （英文）

THE STUDIES ON THE EFFECT OF TRANSPLANTING CONDITIONS ON THE GROWTH OF ZOSTERA MARINA WERE CARRIED OUT DURING EACH CULTURE PERIOD FROM DECEMBER 1982 TO FEBRUARY 1984 AT ODAWA BAY, MIURA PENINSULA, CENTRAL JAPAN. (1)GROWING CHARACTERISTICS DURING EACH CULTURE PERIOD IN SEASONAL CHANGE OF Z. MARINA ARE DESCRIBED. 1)AFTER THE BRANCHING, FLOWERING SHOOT FORMATION IN MAIN SHOOT OF PLANT WERE OBSERVED DURING CULTURE PERIOD FROM DECEMBER 82 TO MARCH 83. 2)GROWTH OF LATERAL SHOOT WERE OBSERVED DURING CULTURE PERIOD, WHEN FLOWERING SHOOT FALLEN OFF, FROM APRIL TO JUNE 83. 3)GROWTH OF LATERAL SHOOT WERE OBSERVEDDURING CULTURE PERIOD, WHEN HIGHEST MORTALITY RATE OF MAIN SHOOT IN SEASONAL CHANGE, FROM AUGUST TO NOVEMBER 83. (2)EFFECT OF TRANSPLANTING CONDITIONS ON GROWTH OF ZOSTERA MARINA ARE DESCRIBED. 1)LITTLE EFFECT OF INJURY OF ROOT IN PLANTING PROCESS ON GROWTH OF PLANT WAS OBSERVED. 2)LITTLE EFFECT OF NODE NUMBER IN THIZOME AT PLANTING ON GROWTH OF PLANTWAS OBSERVED. 3)EFFECT OF PLANTING DEPTH INTO SOIL ON GROWTH OF PLANT WAS OBSERVED, EXCEPT THAT RELATIVE DEPTH RATE HAD BEEN LESS THAN 20% OFSHOOT LENGTH. 4)EFFECT OF SHOOT TOP EXCISION ON GROWTH OF PLANT WAS OBSERVED, EXCEPT THAT RELATIVE EXCISION RATE HAD BEEN LESS THAN 70% OF SHOOT LENGTH. 5)EFFECT OF DRYING ON GROWTH OF PLANT WERE OBSERVED, EXCEPTTHAT WATER CONTENT OF PLANT HAD BEEN MORE THAN 50%.

報告者

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