What question did this study set out to answer?

The aim is to find the best soaking time for Kappaphycus alvarezii in camphor leaf extract to enhance growth.

February 5, 20260 citations

Effect of Soaking Time of Indian Camphorweed (

LMLaylatul Qodriyah MusaUniversitas Halu Oleo LALa Ode Muhammad Aslan YYYusnaini Yusnaini

Key Points

The aim is to find the best soaking time for Kappaphycus alvarezii in camphor leaf extract to enhance growth.
Conducted over 45 days in coastal waters
Included four soaking time treatments (0, 6, 9, 12 hours)
Measured daily growth rate, dry weight to wet weight ratio, and clean anhydrous weed content
Implemented 12 replications for each treatment
Highest daily growth rate (DGR) of 4.45% to 10.69% in the 9-hour soaking time
Lowest DGR of 3.66% to 8.48% in the 0-hour treatment
No significant differences in dry weight to wet weight ratio and clean anhydrous weed content
No diseases or epiphytes detected in any treatment

Abstract

The growth of Kappaphycus alvarezii can be enhanced with biofertilizers. This study aimed to determine the optimal soaking time for K. alvarezii in camphor leaf extract (Pluchea indica L.) to improve growth. This study was conducted over 45 days, from May to July 2024, in the coastal waters of Rahia village, Central Buton district, Southeast Sulawesi. The study included four different soaking times (0, 6, 9 and 12 hours) as treatments with 12 replications. Observed variables included the daily growth rate (DGR), dry weight to wet weight ratio (DW: WW), clean anhydrous weed (CAW) content, as well as the presence of epiphytes and diseases. The highest DGR, which tended to be significantly different (P 0.05) were found for DW: WW ratio and CAW content. Although Ulva lactuca were detected, no diseases or epiphytes were found in any extract treatments. A 9-hour soaking period in camphorweed leaf extract can effectively support the growth of K. alvarezii growth.

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