scholarly journals Extracts of Jatropha curcas L. exhibit significant insecticidal and grain protectant effects against maize weevil, Sitophilus zeamais (Coleoptera: Curculionidae)

2013 ◽  
Vol 4 (3) ◽  
pp. 44-50 ◽  
Author(s):  
C. Jide-Ojo
Keyword(s):  
Jatropha Curcas ◽  
Sitophilus Zeamais ◽  
Maize Weevil ◽  
Jatropha Curcas L ◽  
Grain Protectant

scholarly journals Potential of seed dusts of Jatropha curcas L., Thevetia peruviana (Pers.), and Piper guineense Schumach. against the maize weevil, Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae) in storage of corn grain

2017 ◽  
Vol 86 (3) ◽  
pp. 237-250 ◽  
Author(s):  
Oninye M. Ukpai ◽  
Briandavis N. Ibediungha ◽  
Collins N. Ehisianya
Keyword(s):  
Jatropha Curcas ◽  
Total Mortality ◽  
Black Pepper ◽  
Sitophilus Zeamais ◽  
Laboratory Evaluation ◽  
Phytochemical Analysis ◽  
Ambient Conditions ◽  
Maize Weevil ◽  
Piper Guineense ◽  
Thevetia Peruviana

Abstract A laboratory evaluation was carried out to determine the efficacy and phytochemical composition of powdered seeds of Physic nut Jatropha curcas, Yellow oleander Thevetia peruviana and West African black pepper Piper guineense at different dosages (2.5, 5.0, 7.5 and 10.0 g) for the management of Sitophilus zeamais. Treatments were mixed with 50 g of maize and infested with 10 adult S. zeamais in 200 ml air-tight glass vials and kept under ambient conditions (25-30°C and 70-90 RH) for a period of 28 days in August 2015. The trial was laid out in a completely randomized design in four replicates. Results from data analyses showed that treated maize grains in storage recorded significantly (P < 0.05) higher mean mortality levels of adult S. zeamais than the untreated controls. However, there were no significant differences in mean mortality of the weevil at 7, 14, 21 and 28 DAT, except on those stored only for 1 DAT. Batches treated with higher doses (10.0, 7.5, 5.0 g) suffered a higher total mortality of adult S. zeamais; this was significantly (P < 0.05) higher compared with treatments using smaller dosages (2.5 and 0.0 g). Phytochemical analysis of treatments revealed high levels of alkaloids, tannins and phenols in all the plant extracts. The flavonoid contents were also high in Piper guineense and Permethrin, but lower in Jatropha curcas and Thevetia peruviana. These compounds are known to possess insecticidal properties that may have been responsible for the mortality of Sitophilus zeamais.

Pertumbuhan Beberapa Genotipe Jarak Pagar (Jatropha Curcas L.) di Tanah Masam

2017 ◽  
Vol 5 (2) ◽  
pp. 251-263
Author(s):  
Indah Retnowati ◽  
Memen Surahman
Keyword(s):  
Jatropha Curcas ◽  
Jatropha Curcas L

Indonesia memiliki banyak  tanah masam, tetapi penggunaan masih sangat sedikit karena kandungan nutrisi tanah masam rendah. Sementara itu, jarak pagar merupakan tanaman yang dapat tumbuh di berbagai jenis tanah (termasuk lahan marjinal) dan penggunaannya sebagai bahan baku biodiesel. Oleh karena itu, perlunya penelitian mengenai pertumbuhan jarak pagar pada tanah masam sebagai upaya untuk mengembangkan jarak pagar dan penggunaannya di Indonesia.Untuk memulai upaya, penelitian tentang berbagai genotipe jarak pagar di tanah masam telah dilakukan. Tujuan dari penelitian ini yaitu mempelajari genotipe jarak pagar  yang berpotensi untuk tanah masam. Penelitian ini dilakukan di UPTD Pengembangan Teknologi Lahan Kering Singabraja, Kecamatan Tenjo, Bogor, Jawa Barat, dari November 2010-Agustus 201. Penelitian ini menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) dengan satu faktor yaitu genotipe. Hasil penelitian menunjukkan berbagai perbedaan pada pertumbuhan diantara genotipe-genotipe jarak pagar. Secara umum, ada lima genotipe jarak pagar yang terbaik di tanah masam (pH 5.0) yaitu Medan I-5-1, Dompu, IP-2P-3-4-1, Sulawesi, dan Bima M.

Biopesticidal Extractives and Compounds from Warburgia ugandensis against Maize Weevil (Sitophilus zeamais)

2015 ◽  
Vol 5 (4) ◽  
pp. 236-243
Author(s):  
Sylvia A. Opiyo ◽  
Lawrence O. A. Manguro ◽  
Dorothy A. Okoth ◽  
Anjeline A. Ochung ◽  
Charles O. Ochieng
Keyword(s):  
Sitophilus Zeamais ◽  
Maize Weevil

scholarly journals Environmental Impact Associated with the Supply Chain and Production of Biodiesel from Jatropha curcas L. through Life Cycle Analysis

2018 ◽  
Vol 10 (5) ◽  
pp. 1451 ◽  
Author(s):  
Mario Giraldi-Díaz ◽  
Lorena De Medina-Salas ◽  
Eduardo Castillo-González ◽  
Max De la Cruz-Benavides
Keyword(s):  
Supply Chain ◽  
Life Cycle ◽  
Environmental Impact ◽  
Jatropha Curcas ◽  
Life Cycle Analysis ◽  
Jatropha Curcas L

scholarly journals Genetic Tracing of Jatropha curcas L. from Its Mesoamerican Origin to the World

2017 ◽  
Vol 8 ◽  
Author(s):  
Haiyan Li ◽  
Suguru Tsuchimoto ◽  
Kyuya Harada ◽  
Masanori Yamasaki ◽  
Hiroe Sakai ◽  
...  
Keyword(s):  
Jatropha Curcas ◽  
Jatropha Curcas L ◽  
The World

Full diallel crosses in superior parents of Jatropha curcas L

2020 ◽  
Vol 151 ◽  
pp. 112482
Author(s):  
N.H.C. Mat ◽  
M.A.R. Bhuiyan ◽  
Z. Yaakob ◽  
R. Wickneswari
Keyword(s):  
Jatropha Curcas ◽  
Diallel Crosses ◽  
Jatropha Curcas L
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