Global warming is a trapped occurrence of long-wave solar radiation that emitted back by the earth. The impact of global warming is the occurrence of climate change which will further affect life on the earth. As a result of climate change, there are some agriculture areas that will be drought (getting drier), while in the other areas will get higher rainfall than usual (getting wetter). It can cause farmers to harvest failure and get significant losses. As one of effort to minimize that losses, it is needed the appropriate information about the climate condition (especially on rainfall) of that region in the past and in the present, whether that area is becoming wetter or drier than in previous years.This research aimed to learn the impact of climate change on a local scale in the agriculture area of Lampung State Polytechnic that seen from the foccus area of rainfall, and also to find out whether there has been a change of agroclimatology zone at Lampung Polytechnic agriculture area. This research was conducted in 2016-2017 at Lampung State Polytechnic. In this research, rainfall data that has been collected, analyzed using Oldeman climate classification system for food crops, then analyzed to determine whether that area become wetter or drier than in previous years or constant. The results of this research showed that (1) the impact of climate change at local scale (in Lampung State Polytechnic agriculture area) has been felt that signed from the change of rainfall condition, (2) the current condition in Lampung State Polytechnic agriculture area is wetter than in previous years, and (3) within the last 25 years, agroclimatology zone in the agricultural area of Lampung State Polytechnic has been changed from D3 to C2 zone based on Oldeman climate classification system.
Aklimatisasi merupakan tahap yang kritis bagi plantlet. Pada lingkungan yang baru plantlet dapat mengalami cekaman lingkungan. Kondisi lingkungan seperti media yang tidak mendukung pada tahap aklimatisasi dapat menyebabkan kematian plantlet. Penelitian ini bertujuan: 1) Mendapatkan kombinasi media yang paling baik bagi keberhasilan aklimatisasi plantlet anggrek Phalaenopsis; 2)Mengetahui apakah terdapat interaksi antara media bagian bawah dengan atas pot; 3) Mendapatkan kombinasi media yang paling baik bagi pertumbuhan bibit anggrek anggrek Phalaenopsis pada tahap pembesaran, dan 4) Melihat apakah media sabut kelapa dapat digunakan untuk aklimatisasi dan pembesaran anggrek Phalaenopsis. Penelitian dilaksanakan di rumah jaring Politeknik Negeri Lampung dari bulan Maret hingga Agustus 2018. Plantlet diaklimatisasikan 4 minggu. Percobaan faktorial dilaksanakan dalam rancangan acak kelompok. Faktor A : macam media bagian bawah (bata/arang). Faktor B : macam media bagian atas (moss sphagnum/pakis/sabut kelapa). Enam kombinasi perlakuan dicobakan (masing-masing dengan 10 ulangan), yaitu:  P1 (bata+moss); P2 (bata+pakis); P3 (bata+sabut kelapa); P4 (arang+moss); P5 (arang+pakis); dan P6 (arang+sabut kelapa). Peubah yang diamati: 1) persen keberhasilan plantlet menjadi bibit, 2) tinggi bibit, 3) panjang daun, 4) lebar daun, dan 5) jumlah daun.  Data yang diperoleh dilakukan analisis ragam dan dilanjutkan dengan uji BNJ 5%. Hasil penelitian menunjukkan: 1) Media moss atau pakis dikombinasikan dengan bata maupun arang memberikan persen keberhasilan aklimatisasi plantlet anggrek Phalaenopsis yang paling baik (100%); 2) Tidak terdapat interaksi antara media bagian atas dengan bagian bawah; 3) Kombinasi media yang paling baik bagi pertumbuhan bibit anggrek Phalaenopsis pada tahap pembesaran adalah moss baik dikombinasikan dengan bata ataupun arang, kemudian diikuti oleh pakis (dikombinasikan dengan bata ataupun arang); dan 4) Media sabut kelapa dapat digunakan untuk aklimatisasi dan pembesaran bibit anggrek Phalaenopsis bila dilakukan penyiraman yang lebih intensif.
Banana is one of the most important global agriculture commodities. Asia accounts for the production of bananas amounted to 56.4% of total banana in the world and Indonesia is one of the banana-producing countries in Asia. The demand for bananas increased need is anticipated with good cultivation techniques to meet domestic and international market demand. Plant regeneration in vitro tissue culture techniques or can be used to produce propagules true-to-type in large quantities in a relatively short period and free from disease. This research aims to study the influence of various concentrations of BA (0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, and 4.0 mg/l) against the growth and reproduction of Cavendish banana propagules in vitro. Time appears buds, propagules length and the number of propagules per explant, and the number of primary roots of plants per explant observed after eight weeks of culture. The experiment results show that after explant grown for eight weeks on the media's treatment shows the different response. The increased concentration of BA can increase the number of shoots. The increased concentration of BA from 0.5 mg/l be 1-3 mg/l increased the number of propagules, but the number of propagules will decrease in the concentration of BA more 3.5 or 4 mg/l. In addition to BA concentration 0.5, 1 and 1.5 mg/l MS media into producing shoot buds appear faster time high, highest propagules and root amount more on banana propagules Cavendish, but the number of shoots is fewer. The best of BA concentrations to induce propagules plant bananas Cavendish is 3.0 mg/l.
Upaya untuk memperbaiki teknik budidaya pada tanaman pakchoy salah satunya dengan cara pemupukan tanaman. Saat ini pemupukan tanaman pakchoy secara umum dilakukan dengan menggunakan pupuk kimia. Penggunaan pupuk kimia secara terus menerus dapat menurunkan tingkat kesuburan tanah dan penurunan kualitas tanaman. Untuk mempertahankan kesuburan tanah dan meningkatkan produksi tanaman dapat dilakukan dengan mengkombinasikan penggunaan pupuk kimia dengan pupuk organik, sehingga penggunaan pupuk kimia dapat dikurangi dengan disubstitusi oleh pupuk organik. Bahan alami yang berpotensi menjadi pupuk organik cair adalah asap cair (cuka bambu). Penelitian tentang potensi cuka bambu banyak diarahkan pada fungsinya sebagai pengawet makanan dan pestisida nabati, namun demikian, cuka bambu juga memiliki potensi sebagai bahan organik yang dapat mengurangi penggunaan pupuk kimia pada budidaya tanaman. Penelitian ini bertujuan mengetahui potensi cuka bambu sebagai bahan organik yang dapat mengurangi penggunaan pupuk kimia pada budidaya tanaman pakchoy. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) faktorial 2 x 5 dengan 3 ulangan. Faktor pertama adalah frekuensi pemberian pupuk yaitu satu kali (F1) dan dua kali (F2). Faktor kedua adalah takaran cuka bambu dan NPK, yaitu 100% cuka bambu (N1), 75% cuka bambu + 25% NPK (N2), 50% cuka bambu + 50% NPK (N3), 25% cuka bambu + 75% NPK (N4), dan 100% NPK. Hasil penelitian menunjukkan bahwa penggunaan cuka bambu dengan takaran 50% konsentrasi (5 ml/liter/tanaman) pada frekuensi pemberian pemupukan satu kali dapat mengurangi penggunaan pupuk NPK hingga 50 % (hanya 1 gram/tanaman). Namun demikian, jika frekuensi pemupukan dilakukan dua kali maka penggunaan cuka bambu dengan takaran 75% konsentrasi (7,5 ml/liter/tanaman) dapat mengurangi penggunaan pupuk kimia NPK hingga 75% (hanya 0,5 gram/tanaman). Pemberian cuka bambu + NPK mampu mengurangi penggunaan pupuk kimia NPK pada budidaya tanaman pakchoy tergantung pada frekuensi pemupukannya.
Lampung Provinceis one of robusta coffee production center and a small part of arabica coffee production. Coffee plant propagation can be done vegetatively and generatively, to make garden of seeds entres, it is required seeds thatcan be used as rootstock or as a plant propagation. Coffee seeds have long germ time, caused by physical dormancy.Coconut water is one of the natural ingredients, containing hormones like cytokines, auxins and gibberellins that can stimulate germination and plant growth. The purpose of this research is to know the difference of germination time and to get the right coconut water concentration to accelerate the seed germination of Arabica coffee and Robusta coffee, and also to know the interaction between coffee type and coconut water concentration.The research was conducted in August-November 2016, in PlantLaboratory 1 and Green House of Lampung State Polytechnic. Experiments using Completely Randomized Designwith two factors and three replications.The first factor is coffee varieties (K) with two varieties, Arabica Coffee / Sigarar utang (K1) and Robusta Coffee / BP 42 x BP 358 (K2). The second factor is the concentration of coconut water with five concentration, 0% (A0), 25% (A1), 50% (A2), 75% (A3), 100% (A4).Each experiment uses 20 seeds, total seed required for all experiment is 600 seed coffee. The variables observed when sprouts appear, percentage germinated, when cotyledon rupture, simultaneity grow (K ST ) and growth speed (K CT ). The result of variance analysis showed that the treatment of coffee varieties only had a significant effect on the observation variables when sprouts appear, cotyledon rupture, and the simultaneity grow, whereas the coconut water concentration treatment had no significant effect on the whole observation variable. Test results of LSD α 5% Arabica coffee varieties more quickly sprouts appear, cotyledon rupture and the simultaneity grow than Robusta coffee.
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