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Khaidir Khaidir
Universitas Malikussaleh
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Journal : Journal of Tropical Horticulture

 1 
The Effect of Botanical Fungicides on Anthracnose Disease in Chili Fruit (Capsicum annuum L.) Syamimi, Nur Kholilah; Hendrival, Hendrival; Khaidir, Khaidir; Hafifah, Hafifah; Usnawiyah, Usnawiyah
Journal of Tropical Horticulture Vol 5, No 1 (2022): April 2022
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v5i1.76

Abstract

Research on the application of billygoat weed, lantana, and cogon grass leaves extracts on anthracnose disease in chili plants. This research aims to determine the fungicidal activity of billygoat weed, lantana, and cogon grass leaves extracts on the growth and development of anthracnose disease in chili plants. This research method includes the extraction of billygoat weed, lantana, and cogon grass leaves, Potato Dextrose Agar (PDA) media preparation, Colletotrichum capsici fungal isolates breeding, and in vitro and in vivo testing. The research was conducted in the laboratory with three types of treatments arranged in a completely randomized design (CRD). The results of in vitro testing showed that billygoat weed, lantana, and cogon grass leaves extracts were able to inhibit the growth of Colletotrichum capsici colonies ranging from 0.50-1.24 cm, 80.58-92.15% inhibitory capacity, 0.16x1060.22x106 spore density at 7 days after inoculation and testing. The results of in vivo testing showed that billygoat, lantana, and cogon grass leaves extracts were able to reduce disease severity between 12.50-16.00%, disease incidence ranging from 26.00-30.00%, and chili fruit weight loss of 28.97-32.92%. Billygoat weed, lantana, and cogon grass leaves extracts have the potential as a botanical fungicide in controlling anthracnose disease in chili plants.
The Effect of Three Scion Varieties and Grafting Techniques on the Success of Durian (Durio zibethinus) Seedling Grafting Maryamah, Maryamah; Ismadi, Ismadi; Rafli, Muhammad; Hafifah, Hafifah; Khaidir, Khaidir
Journal of Tropical Horticulture Vol 4, No 1 (2021): April 2021
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v4i1.72

Abstract

Durian (Durio zibethinus) is a Southeast Asian plant with a high nutritional content, delicious taste, and many good benefits. Durian has a high economic value with a wide and varied market range (traditional to modern markets). This shows that durian is a commodity with a lot of potential for development. The increase in production is inseparable from various problems in the cultivation aspect, especially in the provision of quality durian seeds. Durian plants are generally propagated vegetatively. Vegetative propagation of durian can be done by grafting. In durian grafting, various varieties are used as scion. These varieties have been known to have their respective advantages and markets. This research aims to determine the effect of three varieties of scion and grafting techniques on the success of durian grafting. The research used a factorial randomized block design (RBD) consisting of two factors, which are the scion varieties and grafting techniques. There are three varieties of scions, which are umpang duk (V1), monthong (V2) and bintan (V3). Meanwhile, the grafting technique consists of top grafting (T1) and side grafting (T2).
Effect of Scarification Position and Sulfuric Acid (H2so4) Concentration on Soursop Seed Viability (Annona muricata L.) Siregar, Eka Pratika Duri; Nazimah, Nazimah; Safrizal, Safrizal; Nilahayati, Nilahayati; Khaidir, Khaidir
Journal of Tropical Horticulture Vol 4, No 1 (2021): April 2021
Publisher : Yayasan Pertanian Tropika Indonesia (YPTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33089/jthort.v4i1.69

Abstract

Soursop is an annual plant that is rich in nutrients. The problem in soursop cultivation is that soursop has a hard seed coat, which causes the seeds to be impermeable to gases and air, inhibiting germination. Soursop seed dormancy can be broken by scarification and sulfuric acid immersion. This research aims to determine the effect of scarification position and sulfuric acid concentration on the viability of soursop seeds. The research used a completely randomized factorial pattern (CRD), which consisted of two factors with three replications. The first factor was the scarification position consisting of S0 (without scarification), S1 (base scarification), S2 (tip scarification) and S3 (middle scarification). The second factor was the sulfuric acid concentration consisting of K0 (control), K1 (10%), K2 (20%), and K3 (30%). The results showed an interaction between the treatment of scarification position and the concentration of sulfuric acid (c) on germination capacity and growth speed parameters. The combination of S0K1 (without scarification and 10% sulfuric acid) increased soursop seeds' germination and growth speed.
Co-Authors Abdullah Ade Fitria Agustina Maulida Annisa, Muhtia Aula Afzal Aulia Afzal Baidhawi Baidhawi Dea Rumambi Sinaga Dewi Sartika Aryani Dwi Asti Purnama Elvira Sari Dewi Erlangga Erlangga Eva Ayuzar Fachry Abda El Rahman Hafifah Hafifah Hafifah Hafifah, Hafifah Hamzah Fanshury Nasution Hendrival Hendrival Heni Pujiastuti Ismadi Ismadi Ismadi Ismadi Jamidi, Jamidi Julianti Mahdaliana, Mahdaliana Martina Martina Maryamah Maryamah Millenia Dzikra Az Zahra Muhammad Muaz Munauwar Muhammad Yusuf Nurdin Mulyadi Nurdin Munazar Munazar N, Muhammad Yusuf Nanda Mayani Nazimah Nazimah Nazimah Nilahayati Novita Pramahsari Putri Nura, Nura Nurdin, Mulyadi Puri Handayani Puri Handayani Rafli, Muhammad Rahmaniah Rahmaniah Rahmaniah Rd. Selvy Handayani Riani Riani, Riani Rosnina Rosnina, Rosnina Safrizal Safrizal Sari Dewi, Elvira Sari, Dewi Kumalasari Siregar, Eka Pratika Duri Syahrani Khairani Marpaung Syamimi, Nur Kholilah Usnawiyah Usnawiyah, Usnawiyah Usnawiyah, Usnawiyah Veithzal Rivai Zainal Yusuf N, Muhammad Zurrahmi Wirda Zurrahmi Wirda Zurrahmi Wirda Zurrahmi Wirda