PENGGUNAAN ATRAKTAN DAUN TALAS (Colocasia esculenta) DENGAN VARIASI PESTISIDA NABATI TERHADAP POPULASI KEONG MAS Pomacea canaliculata Lamarck (Mollusca : Ampullariidae) PADA PADI DI SUMATERA UTARA

Keong mas (Pomacea canaliculata Lamarck) merupakan salah satu hama utama pada tanaman padi yang sampai saat ini belum dapat dikendalikan dengan baik dengan perkembangbiakan sangat cepat. Pengendalian dengan moluskisida kimia meninggalkan residu lingkungan, sehingga dicari alternatif pengendalian yang ramah lingkungan menggunakan kombinasi atraktan. Penelitian ini bertujuan untuk mendapatkan tanaman yang efektif sebagai pestisida nabati yang dapat digunakan untuk mengendalikan keong mas di lapangan. Penelitian ini dilaksanakan pada bulan April sampai Mei 2017 di Susuk VIII, Padang Bulan, Medan Selayang. Metode yang digunakan adalah rancangan acak lengkap non faktorial dengan 6 perlakuan dan 4 ulangan yaitu (kontrol), serbuk pinang (Areca catechu), serbuk serai (Cymbopogon citrates), serbuk daun sukun (Artocarpus altilis), serbuk mengkudu (Morinda citrifolia), dan serbuk eceng gondok (Eichhornia crassipes). Hasil penelitian menunjukkan serbuk pinang (Areca catechu) paling efektif mengontrol mortalitas keong mas pada hari ke-7 (100%). Perhitungan persentase rumpun padi yang terserang keong mas terendah pada perlakuan serbuk pinang dengan rata-rata adalah 0,062 pada waktu kematian 2 hari setelah aplikasi. Hasil penelitian menunjukkan kelima serbuk pestisida nabati ini dapat mengendalikan keong mas pada tanaman padi di Sumatera Utara.

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IDENTIFICATION OF MACROPHYTA IN THE SWAMP AREA OF THE SAWAH VILLAGE, KAMPAR REGENCY, RIAU PROVINCE

Asian Journal of Aquatic Sciences ◽

10.31258/ajoas.2.2.95-106 ◽

2020 ◽

Vol 2 (2) ◽

pp. 95-106

Author(s):

Aprilia Safitri Nasution ◽

Windarti Windarti ◽

Efawani Efawani

Keyword(s):

Eichhornia Crassipes ◽

Colocasia Esculenta ◽

Survey Method ◽

Azolla Pinnata ◽

Panicum Repens ◽

Salvinia Natans

There were many types of macrophyta present in the swamp area of the Sawah Village, but there was no information about the types of macrophyta in that area. To understand the type of macrophyta presence in that area, a research has been carried out in February 2019. The method usedz is a the survey method, where the swanp area of the Sawah Village used as the location of the research and macrophytes as the object of research. Sampling was done once during the study. The plants were then identified based on Steenis (1981). There are 10 types of macrophytes found in the swanp area of the Sawah Village namely: Colocasia esculenta, Eichhornia crassipes, Eleocharis dulcis, Paspalum comersonii, Azolla pinnata, Utricularia aurea, Salvinia natans, Nepbrolepis biserrata, Monochoria vaginalis, Panicum repens.

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Glycaemic index of selected staples commonly eaten in the Caribbean and the effects of boiling v. crushing

British Journal Of Nutrition ◽

10.1079/bjn20041125 ◽

2004 ◽

Vol 91 (6) ◽

pp. 971-977 ◽

Cited By ~ 27

Author(s):

D. Dan Ramdath ◽

Renée L. C. Isaacs ◽

Surujpal Teelucksingh ◽

Thomas M. S. Wolever

Keyword(s):

Glycaemic Index ◽

Colocasia Esculenta ◽

Irish Potato ◽

White Bread ◽

Glucose Response ◽

Artocarpus Altilis ◽

Xanthosoma Sagittifolium ◽

Significant Difference ◽

White Yam ◽

The Caribbean

Integrating information about the glycaemic index (GI) of foods into the Caribbean diet is limited by the lack of data. Therefore, we determined the GI of eight staple foods eaten in the Caribbean and the effect on GI of crushing selected tubers. Groups of eight to ten healthy volunteers participated in three studies at two sites. GI was determined using a standard method with white bread and adjusted relative to glucose. The mean area under the glucose response curve elicited by white bread was similar for the different groups of subjects. In study 1, the GI of cassava (Manihot esculenta; 94 (SEM 11)) was significantly higher than those of breadfruit (Artocarpus altilis; 60 (SEM 9)), cooking ‘green’ banana (Musa spp.; 65 (SEM 11)) and sadha roti (65 (SEM 9)) (P=0·018). There was no significant difference in the GI of the foods in study 2: dasheen (Colocasia esculenta var. esculenta; 77 (SEM 10)), eddoes (Colocasia esculenta var. antiquorum; 61 (SEM 10)), Irish potato (Solanum tuberosum; 71 (SEM 8)), tannia (Xanthosoma sagittifolium; 60 (SEM 5)) and white yam (Dioscorea alata; 62 (SEM 6)), and, in study 3, crushing did not significantly affect the GI of dasheen, tannia or Irish potato. However, when the results from studies 2 and 3 were pooled, the GI of dasheen (76 (SEM 7)) was significantly greater than that of tannia (55 (SEM 5); P=0·015) with potato being intermediate (69 (SEM 6)). We conclude that dasheen and cassava are high-GI foods, whereas the other tubers studied and sadha roti are intermediate-GI foods. Given the regular usage of cassava and dasheen in Caribbean diets we speculate that these diets would tend to be high GI, although this could be reduced by foods such as sadha roti and white yam. The range of GI between the staples is sufficiently large that health benefits may be accrued by replacing high-GI staples with intermediate-GI staples in the Caribbean diet.

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PENGARUH PEMBERIAN EKSTRAK PINANG (ARECA CATECHU L.) TERHADAP KESINTASAN TELUR KEONG MAS (POMACEA CANALICULATA LAMARCK)

JURNAL BIOLOGI TROPIS ◽

10.29303/jbt.v19i2.1302 ◽

2019 ◽

Vol 19 (2) ◽

pp. 294

Author(s):

Angreni B. Liunokas ◽

Joice J. Bana ◽

Djeffry Amalo

Keyword(s):

Rice Plant ◽

Rice Field ◽

Pomacea Canaliculata ◽

Lc50 Value ◽

Areca Catechu ◽

Potential Pest ◽

Biology Laboratory

Abstrak: Keong mas (Pomacea canaliculata Lamarck) merupakan hama potensial tanaman padi sawah yang berkembangbiak dengan sangat cepat sehingga sulit untuk menekan perkembangannya. Salah satu jenis tanaman yang dapat mengendalikan dan menekan populasi hama ini adalah pinang (Areca catechu L). Penelitian tentang pengaruh pemberian ekstrak pinang terhadap kesintasan telur keong mas, telah dilaksanakan di Laboratorium Biologi Undana Kupang. Tujuan penelitian ini adalah untuk mengetahui: 1) pengaruh pemberian ekstrak biji pinang terhadap kesintasan telur keong mas, (2) nilai LC50 ekstrak biji pinang terhadap mortalitas telur keong mas, (3) nilai LT50 ekstrak biji pinang terhadap mortalitas telur keong mas. Dalam penelitian ini digunakan rancangan acak lengkap dengan enam perlakuan yang terdiri dari tiga ulangan. Data penelitian dianalisis dengan analisis ragam dan analisis probit untuk menghitung LC50 dan LT50. Hasil penelitian menunjukkan bahwa (1) pemberian ekstrak pinang efektif dalam menghambat dan mematikan telur keong mas serta memberikan pengaruh nyata terhadap kesintasan telur keong mas. (2) nilai LC50 ekstrak pinang adalah pada konsentrasi 18.899% dengan garis regresi Y=10.56 + 1.98x dan (3) nilai LT50 ekstrak pinang yaitu pada 72,980 jam. Pemanfaatan ekstrak pinang sangat direkomendasikan bagi petani padi sawah yang ingin membasmi hama keong mas.Kata Kunci : A. catechu L., Telur P. canaliculata Lamarck, Kesintasan.Abstract: Golden snail (Pomacea canaliculata Lamarck) has been potential pest for rice plant which quickly develops, therefore it is difficult to stop its growth. One kind of plant which is able to stop the growth is areca (areca catechu L.). The influence of giving areca extract toward the development of golden snail’s eggs has already been done by the Biology Laboratory of Undana Kupang. The aim of the study is to know: 1) the influence of areca extract toward the development of golden snail’s eggs; 2) the LC50 value of areca extract on the mortality og golden snail’s eggs; 3) the LT50 value of areca extract on the mortality of golden snail’s eggs. Random technique was used with six sessions of treatment and three tests were implied. The analysis was done by classifying and also probility to count the value of LC50 and LT50. The result showed that (1) giving areca extract was effective to restrain and stop the development of golden snail’s eggs and giving obvious influence toward the development of the eggs. (2) the value of LC50 areca extract was on the concentration of 18,899% with the regression was Y=10.56 + 1.98x and (3) the value of LT50 areca extract was on 72.980 hours. Therefore, making of areca extract is highly recommended for farmers especially in the rice field who want to prevent the grouth of golden snail.Keywords : A. catechu L., P. canaliculata Lamarck egg, Survivorship.

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