Author: alghienkad06
Wereng coklat (Nilaparvata lugens Stal.) merupakan salah satu hama utama padi. Pertanaman padi di lapangan yang terserang wereng coklat akan menjadi layu, kering dan pada serangan berat dapat menyebabkan puso, oleh karena itu diupayakan pengendaliannya. Beberapa cara yang dilakukan untuk mengendalikannya di antaranya dengan menggunakan VARIETAS PADI tahan wereng coklat. Pengendalian dengan menggunakan varietas tahan didasarkan pada sifat ketahanan tanaman terhadap hama yaitu preference/nonpreference (antixenosis), antibiosis dan tolerance. Untuk mendapatkan VARIETAS PADI tahan dilakukan penelitian dengan menguji atau skreening galur-galur/ VARIETAS PADI. Skreening dilakukan pada galur-galur padi dari observasi, uji daya pendahuluan (UDHP), uji daya lanjutan (UDHL), galur harapan (GH) dan galur uji multilokasi (UML) padi tipe baru dan padi rawa. Untuk lebih dapat meyakinkan sifat ketahanan, pada galur yang tahan dilakukanlah pengamatan perkembangan populasi. Beberapa galur PTB yang agak tahan wereng coklat biotipe 3sm yaitu : B11252B-Pn-3-2-1-1-2 ; B11007E-Mr-3-2-Pn-2-1 dan B10543F-Kn-17-1. Sedang galur padi rawa yang agak tahan wereng coklat biotipe 3sm yaitu : B9858D-KA-55, IR70213-9-CPA-12-UBN-2-1-3-1 dan IR70215-2-CPA-2-1-UBN-1-2 serta galur yang tahan terhadap wck biotipe 3sm dan agak tahan biotipe 2 yaitu IR70181-5-PM 1-1-2-B-1. Reaksi VARIETAS PADI di lapangan terhadap populasi wereng coklat setelah beberapa tahun dapat berubah seperti yang ditemui di Klaten semula IR 64 tahan kemudian berubah agak tahan. . Untuk mengetahui perkembangan sifat fisiologi wereng coklat terhadap varietas unggul yang dilakukanlah pengamatan terhadap daya makan dan fekunditasnya, pada varietas tahan wereng colat lebih sedikit mengisap cairan tanaman dan telur yang diletakkan juga diproduksi lebih sedikit dibanding varietas rentan.
8 Responses to “Uji Ketahanan Galur Terhadap Wereng Cokelat”
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I don’t want you to be very alarmed…but I have some bad news about this site. I used to have a similar schematic when designing blogs, but boy was I wrong about what worked and what didn’t. If you want to see samples of sites (even mine in the private area) making $360 USD (real live cash) per day and up, then you need to see this video http://incomeweekly.info Real live working sites that are raking it in for their owners. You can turn yours around in a matter of hours.
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So I heard this site was possibly up for sale on http://www.weekly-income-now.info
Hey, mind if I bend your ear a bit? I have something important that you might like
My buddies and I (we’re from Florida) have been watching this blog for a while and we really like it so we decided to share something with you that’s been working for our websites. I’m not sure if you knew this, but building an email list is HUGE. You can increase your visitors, and if you monitize them correctly, they can be a serious gold mine. There is a lot I would love to talk to you about that you can do to increase your revenue here. However, I won’t do it justice. Just go here instead: http://www.make1150weekly.info/ and check out what these crazy guys are doing. Personally, I have revamped all of my sites (didn’t take much time at all) and I’m making a steady $200-$400 DAILY, swear on my mother I made $274 yesterday from blogs. Amazing huh? Just a couple weeks ago, I was happy scraping by with 6 bucks a day on adsense heh. Check it out, really. You’ll be doing yourself a huge favor.
Hey, this is a really nice site you have here and I just wanted to drop a friendly message. It has a lot of potential, actually my son ad I run a couple blogs ourselves like this. To be honest, I’m kind of old school and I really didn’t get into the digital stuff until I saw him making $110 per DAY off a cheap little site he had thrown together in less than a few hours! I was literally floored. You see I had lost my job about a year and a half ago, so trust me I know what it’s like when life drops you on your knees and makes you cry for relief. I called everyone I knew and a whole lot of people that I didn’t just to get my $42,000 a year office job back (which I had held for almost 15 years). If it wasn’t for my son, I have no idea where on earth our family would be. Our whole family does this for a living now, full time and self employed and we make about $15,687 between the three of us combined. I really think you should just consider giving it a go, it’ll only take a minute of your time to look at the video: http://www.earn-a-big-income.info Your destiny should be your hands alone. Just trust your gut and make the change you need. Hope to see you on the other side!
siip
trimakasih untuk informasinya, jadi lebih mengetahui sedikit tentang wereng coklat..
nice
pertamax