Plant Pathology Commons^™

Aplikasi Pupuk Organik Dan N, P, K Terhadap Ph Tanah, P-Tersedia, Serapan P, Dan Hasil Padi Hitam (Oryza Sativa L.) Pada Inceptisol, Eso Solihin, Anni Yuniarti, Ayuning Arief Putri

Jurnal Kultivasi

Sari. Padi hitam memiliki khasiat yang baik untuk kesehatan, yang dapat meningkatkan daya tahan tubuh terhadap penyakit, mencegah gangguan fungsi ginjal, mencegah kanker / tumor, dan banyak manfaat lainnya. Dewasa ini, produktivitas padi hitam masih relatif rendah, dengan beberapa penyebabnya adalah degradasi lahan dan ketidakseimbangan nutrisi di tanah. Salah satu ordo tanah yang distribusi secara luas di Indonesia yang dapat digunakan untuk budidaya tanaman adalah Inceptisol. Oleh karena itu, Inceptisols memerlukan penanganan yang tepat, seperti aplikasi pupuk organik dan anorganik yang seimbang. Tujuan dari penelitian ini adalah untuk mengetahui macam pupuk organik dan dosis N, P, K terbaik terhadap pH …

Importance Of Myxomycetes In Biological Research And Teaching, Sydney Everhart, Harold W. Keller

Papers in Plant Pathology

Myxomycetes, the true slime molds, are highlighted in research and teaching that emphasizes various stages of the life cycle as experimental models. Past and current phylogenetic classifications of Myxomycetes on the tree of life are presented. Life cycle stages are illustrated, described, and discussed. Simple laboratory demonstrations and experiments are described that include spore germination, spore release, and moist chamber cultures utilizing organic matter from various microhabitats. Novel compounds isolated from fruiting bodies and plasmodia of 22 myxomycete species are tabulated, some of which exhibit biological activity that function as antibiotics, antimicrobials, and are cytotoxic to cancer cells. Aeroallergens include …

Fusarium And Verticillium Wilts Of Vegetables, Claudia Nischwitz, Marion Murray, Nick Volesky

All Current Publications

Fusarium wilt and Verticillium wilt are soilborne plant diseases that attack vascular tissue. They cause similar symptoms in their hosts and are difficult to manage as they can survive in the soil for many years. Once a plant is infected, there is no treatment or cure. Therefore, management should focus on preventive and cultural control practices. This fact sheet identifies the many vegetables susceptible to these pathogens in Utah and reviews symptoms, diagnosis, and ways to prevent these diseases.

Genetic Characterization And Diversity Of Rathayibacter Toxicus, Anne Vidaver, Irina Agarkova

Papers in Plant Pathology

Rathayibacter toxicus is a nematode-vectored gram-positive bacterium responsible for a gumming disease of grasses and production of a highly potent animal and human toxin that is often fatal to livestock and has a history of occurring in unexpected circumstances. DNA of 22 strains of R. toxicus from Australia were characterized using amplified fragment length polymorphism (AFLP) and pulsed-field gel electrophoresis (PFGE). AFLP analysis grouped the 22 strains into three genetic clusters that correspond to their geographic origin. The mean similarity between the three clusters was 85 to 86%. PFGE analysis generated three different banding patterns that enabled typing the strains …

Potensi Metabolit Sekunder Gulma Sebagai Pestisida Nabati Di Indonesia, Fransisca Sihombing, Koko Tampubolon, Sony Samosir, Zavandri Purba, Syahibal Karim

Jurnal Kultivasi

Sari. Tujuan kajian ilmiah ini adalah untuk mengetahui manfaat dan mekanisme metabolit sekunder gulma, kelebihan dan kekurangan pestisida nabati gulma, identifikasi metabolit sekunder gulma, prosedur pembuatan pestisida nabati dari gulma, dan implikasi kebijakan dari pestisida nabati gulma dalam mengendalikan organisme pengganggu tanaman. Hasil kajian menunjukkan potensi senyawa metabolit sekunder dari gulma dapat berfungsi ganda sebagai pestisida nabati. Kelebihan pestisida nabati dari gulma antara lain: (1) metabolit sekunder gulma bersifat organik dan tidak bersifat racun, (2) gulma yang digunakan mudah diperoleh dari lapangan dan tidak membutuhkan biaya yang mahal, (3) beberapa mekanisme metabolit sekunder gulma tidak ditemui dalam mekanisme kerja pestisida …

Pengaruh Interval Penyiraman Terhadap Pertumbuhan Dan Adaptasi Tiga Bawang Merah Komersial, Kusumiyati Kusumiyati, Jajang Hamdani, Grace Manurung

Jurnal Kultivasi

AbstrakAir merupakan salah satu faktor lingkungan yang mempengaruhi pertumbuhan dan perkembangan tanaman. Pemberian air yang sering dapat menyebabkan kelembaban tinggi (> 70%) dan menjadi tempat tumbuh yang baik bagi hama dan penyakit sedangkan air yang tidak mencukupi dapat menyebabkan cekaman kekeringan bagi tanaman. Bawang merah (Allium ascalonicum) merupakan salah satu tanaman yang peka terhadap ketersediaan air. Penelitian ini bertujuan untuk menentukan interval penyiraman yang efektif dan efisien terhadap pertumbuhan tiga kultivar unggul bawang merah. Percobaan dilaksanakan di kebun percobaan milik Fakultas Pertanian, Universitas Padjadjaran (± 730 meter di atas permukaan laut). Rancangan percobaan yang digunakan adalah Rancangan Petak Terbagi yang …

Barley Grass And Its Management In Crops

Grains and other field crops factsheets

Barley grass is a common name for Hordeum glaucum and H. leporinum. Barley grass is a major crop weeds species because the seed is readily dispersed, it is renowned for rapidly germinating in autumn, and post-emergent herbicide control options are limited. It can also act as an alternate host for cereal diseases and can develop resistance to herbicides.

The rapid germination of the species after rainfall gives barley grass the potential to act as a green bridge for cereal root rot diseases

Diamondback Moth And Its Management In Canola And Crop Weeds

Grains and other field crops factsheets

Diamondback moth larvae are a serious pest of canola, brassicas, and forage crops, and are difficult to control. The pest breeds up on summer weeds and volunteer canola plants. If there are abundant early rains and mild winters, diamondback moth larvae pose a risk to canola crops.

Plant Disease Management, Robert Harveson, Stephen Wegulo, Tamra Jackson-Ziems, Anthony Adesemoye, Joshua Miller, Loren Giesler, J. Harbour

Papers in Plant Pathology

Fungicides are an important component of the pesticide program for some Nebraska fields. While not all fields of corn, dry bean, sorghum, soybean, sugarbeet, sunflower, and wheat will require a fungicide application, it’s critical that you know the correct product for the disease in your field when you do need it.

Identification. The first step with any disease management program is to make sure you have correctly identified the problem. Identification is critical as there are many bacterial diseases with symptoms similar to fungal diseases, and fungicides will have no activity on them. For help identifying crop diseases, visit the …

Vitamin Deficiencies In Humans: Can Plant Science Help?, Teresa Fitzpatrick, Gilles Basset

Faculty Publications from the Center for Plant Science Innovation

The term vitamin describes a small group of organic compounds that are absolutely required in the human diet. Although for the most part, dependency criteria are met in developed countries through balanced diets, this is not the case for the five billion people in developing countries who depend predominantly on a single staple crop for survival. Thus, providing a more balanced vitamin intake from high-quality food remains one of the grandest challenges for global human nutrition in the coming decade(s). Here, we describe the known importance of vitamins in human health and current knowledge on their metabolism in plants. Deficits …