Putri Irene Kanny
Universitas Gunadarma

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PERANAN SUHU DAN KELEMBABAN SELAMA PENYIMPANAN BENIH KEDELAI TERHADAP DAYA KECAMBAH DAN INFEKSI PATOGEN TULAR BENIH Evan Purnama Ramdan; Putri Irene Kanny; Edi Minaji Pribadi; Budiman Budiman
Jurnal Agrotek Tropika Vol 10, No 3 (2022): JURNAL AGROTEK TROPIKA VOL 10, AGUSTUS 2022
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v10i3.5136

Abstract

Kerusakan benih selama penyimpanan dapat disebabkan oleh infeksi patogen tular benih. Akibatnya dapat terjadi penurunan daya kecambah maupun kematian bibit. Suhu dan kelembaban merupakan salah satu faktor penyebab kemunduran fisiologi benih selama penyimpanan. Oleh karena itu, penelitian ini bertujuan untuk menguji pengaruh suhu dan kelembaban selama penyimpanan terhadap daya kecambah dan cendawan patogen yang berasosiasi dengan benih kedelai. Rancangan yang digunakan pada penelitian ini adalah Ranncangan Acak Lengkap yang terdiri dari 3 perlakuan, yaitu suhu dan kelembaban ruang (kontrol), suhu rendah, dan kelembaban rendah. Setiap perlakuan diulang sebanyak 5 kali.  Benih kedelai disiapkan dengan membungkus 10 butir benih dengan kain kasa sejumlah perlakuan dan ulangan. Benih yang telah dibungkus kasa kemudian disimpan pada suhu dan kelembaban ruang, pada suhu dingin 4oC di refrigerator dan kelembaban rendah (30%) pada desikator yang ditambah silica gel. Setelah 3 minggu penyimpanan, benih kedelai ditumbuhkan dengan metode blotter test. Pada 7 hari setelah tanam, benih yang berkecambah dihitung daya kecambah dan daya infeksi cendawan patogen. Data yang diperoleh kemudian dianalisis ragam dan dilanjutkan dengan uji Tukey sebagai pada taraf5%.Hasil penelitian menunjukkan bahwa perlakuan suhu dan kelembaban dapat menjaga mutu benih dengan daya kecambah 96.67-100%. Perlakuan suhu dingin dan kelembaban rendah juga dapat menghindarkan benih kedelai dari infeksi Cladosporium sp. dan Rhizopus sp.
KISARAN INANG ISOLAT Colletotrichum gloeosporiodes ASAL MANGGA PADA BEBERAPA PASCAPANEN BUAH Evan Purnama Ramdan; Inti Mulyo Arti; Ummu Kalsum; Putri Irene Kanny
Jurnal Pertanian Presisi (Journal of Precision Agriculture) Vol 6, No 2 (2022): Jurnal Pertanian Presisi
Publisher : Universitas Gunadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35760/jpp.2022.v6i2.6778

Abstract

Colletotrichum gloesporiodes is one of the species of Colletotrichum that causes anthracnose on various fruits both in the field and postharvest. C. gloesporiodes is a cosmopolitan pathogen so it is important to know which fruits can be infected as a basis for prevention. This study aimed to determine the host range and virulence level of C. gloesporiodes in several postharvest fruits. The research was conducted at the Agrotechnology Intermediate Laboratory, Gunadarma University from March 2022 to April 2022. This study used a completely randomized design consisting of 4 types of fruit (mango, chili, papaya, and tomato) as treatment. Each treatment consisted of 4 units and then repeated 3 times so that there were a total of 48 experimental units. C. gloesporiodes isolate was obtained from mango fruit with anthracnose symptoms. The isolates obtained were inoculated to tomatoes, chilies, papayas, and mangoes as controls. Anthracnose symptoms and lesin diameter were observed at 7 days after inoculation. The diameter of the lesin was measured to determine the level of virulence. The results showed that C. gloesporiodes was able to colonize and infect chilies, papayas, and mangoes as hosts, but there was no inoculated to tomatoes. The ability to colonize and infect is indicated by symptoms in the form of yellow to black spots, sunken, and watery. The virulence category showed different levels in each fruit with a range from very low to moderate. The conclusions obtained from this study were that C. gloesporiodes was able to infect chilies and papayas with different levels of virulence.
PENGARUH INOKULASI FUNGI MIKORIZA ARBUSKULA (FMA) DAN PUPUK P TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN AKAR WANGI (vetiveria zizanoides L.) Intan Suwanti; Ratih Kurniasih; Putri Irene Kanny
Jurnal Pertanian Presisi (Journal of Precision Agriculture) Vol 7, No 1 (2023): Jurnal Pertanian Presisi
Publisher : Universitas Gunadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35760/jpp.2023.v7i1.6897

Abstract

Vetiver (Vetiveria zizanioides L.) is a plant that produces essential oils. The use of mycorrhiza and P fertilizer on vetiver plants can support growth and increase root crop production. However, the exact dose of P fertilizer is not yet known to increase and support the growth and production of vetiver plants. For this reason, the dose of fertilization treatment was carried out to see which doses could be associated with Arbuscular Mycorrhizal Fungi (AMF) which could help the growth of vetiver plants. This study used a factorial Randomized Block Design (RAK) with two factors. The first factor was AMF inoculation consisting of 2 levels, without AMF inoculum (M0) and inoculum administration (M1). The second factor is the dose of Phosphor (P) fertilizer consisting of 3 levels, namely, the dose of 50% P fertilizer as much as 397 mg/polybag (P1), 100% P fertilizer at 793 mg/polybag (P2) and 150% P fertilizer as much as 1,190 mg/polybag (P3 ). The results showed that the AMF inoculum had not been able to increase the growth and yield of vetiver plants. AMF inoculum affects the number of spores and root infections. P fertilizer has not been able to increase the growth and production of vetiver plants. There was no interaction between the two treatments.