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ITS » Undergraduate Theses » Biologi
Posted by anisw@its.ac.id at 27/04/2016 15:30:39  •  488 Views


STUDI POTENSI INSEKTISIDA NABATI EKSTRAK DAUN MAJAPAHIT CRESCENTIA CUJETE TERHADAP LARVA GRAYAK SPODOPTERA LITURA

POTENTIAL STUDY OF BIOINSECTICIDE MAJAPAHIT LEAF EXTRACT Crescentia cujete TO GRAYAK Spodoptera litura

Author :
FISKASARI, LINDA ( 1510100002 )




ABSTRAK

Majapahit Crescentia cujete adalah tanaman yang berdasarkan hasil uji fitokimia daunnya mengandung senyawa metabolit sekunder yang dapat digunakan sebagai insektisida nabati. Dalam penelitian ini Penelitian ini bertujuan untuk mengetahui potensi insektisida nabati dari ekstrak daun majapahit LC50 menggunakan rancangan acak lengkap dengan 11 macam konsentrasi 0 5 10 15 20 25 30 35 40 45 dan 50. Tiap perlakuan terdapat 3 kali ulangan dengan setiap perlakuan menggunakan 20 ekor larva Spodoptera litura instar 2. Metodologi yang digunakan adalah metode ekstraksi dengan maeserasi menggunakan metanol. Parameter yang diamati pada penelitian ini adalah mortalitas berat tubuh larva aktifitas makan larva dan juga persentase pembentukan pupa. Dalam penelitian ini didapatkan hasil bahwa ekstrak daun Majapahit Crescentia cujete berpotensi sebagai insektisida nabati hasil analisis probit menunjukkan bahwa LC50 didapatkan pada konsentrasi 3176 pada 48 jam pengamatan. Ekstrak daun Majapahit juga mempengaruhi mortalitas berat aktifitas makan dan juga persentase pupa Spodoptera litura.


ABSTRACT

Majapahit Crescentia cujete is a plant based on phytochemical test results the leaves contain bioactive compounds that can be used as a bioinsecticide. This study aims to determine the potential of plant-based insecticides majapahit leafs extract LC50 using a completely randomized design with 11 different concentrations of 0 5 10 15 20 25 30 35 40 45 and 50. Each treatment contained three times repetition using 20 level two Spodoptera litura larvae. The method used is the extraction by maeceration using metanol. Parameters observed in this study were mortality larval body weight eating activity and also the percentage of larvae pupa formation. In this study showing that the extract of Majapahit leaf Crescentia cujete has potential as bioinsecticide probit analysis results showed that the LC50 obtained at a concentration of 31.76 in 48 hours of observation. Majapahit leaf extract also affect mortality weight eating activity and also Spodoptera litura pupae percentage.



KeywordsCrecentia cujete; insektisida nabati; spodoptera litura; bioinsecticide
 
Subject:  NONE
Contributor
  1. Kristanti Indah Purwani S.Si.,M.Si
Date Create: 27/04/2016
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-15001160008733
Collection ID: 15001160008733
Call Number: RSBi 615.907 Fis s


Source
Undergraduate Theses of Biology, RSBi 615.907 Fis s, 2014

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Copyright @2016 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




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  1.  ITS-Undergraduate-41369-1510100002-Abstract-en.pdf - 201 KB
  2.  ITS-Undergraduate-41369-1510100002-Conclusion.pdf - 200 KB




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