Tembakau madura merupakan bahan baku rokok keretek. Tembakau ini berkembang utamanya di Kabupaten<br />Pamekasan dan Sumenep, kemudian meluas sampai ke Kabupaten Sampang. Salah satu permasalahan<br />yang dihadapi adalah status kalium (K) tanah di Madura umumnya rendah sampai sedang, dan gejala kekahatan<br />(kekurangan) akan kalium ini sudah terdeteksi sejak tahun 1989. Pengujian ini bertujuan untuk mengetahui<br />efektivitas pemberian pupuk ZK terhadap produksi dan mutu tembakau madura di lahan petani. Pengujian<br />dilakukan pada 22 unit lahan petani di Kecamatan Guluk-Guluk, Kabupaten Sumenep. Perlakuan<br />adalah pemupukan dengan 100 kg ZK per hektar. Sebagai kontrol adalah 22 unit lahan petani yang tidak<br />menggunakan pupuk ZK. Dari hasil pengujian dapat disimpulkan bahwa pemberian 100 kg ZK per hektar pada<br />tembakau madura dapat meningkatkan indeks mutu 19,3%, harga tembakau Rp4.019,00/kg (19,4%), indeks<br />tanaman 27,3% dan penerimaan petani Rp2.267.818,00/ha (18,4%). Ratio tambahan keuntungan terhadap<br />tambahan biaya dengan penggunaan pupuk ZK 100 kg per hektar adalah 1,57.
Tembakau virginia fc varietas NC 100 diimpor dari ProfiGen do Brasil Ltda. dan diuji potensi hasil dan mutunya<br />di Pringga Jurang, Kopang Rembiga, dan Semaya, Lombok pada musim tembakau tahun 2006. Sebagai<br />pembanding digunakan PVH 09. Pengujian dilakukan pada dua waktu tanam, yaitu akhir bulan Juli dan akhir<br />bulan Agustus 2006. Untuk membandingkan kedua varietas, pada setiap unit pengujian digunakan uji t.<br />Hasil pengujian menunjukkan NC 100 dapat menghasilkan 1,932 ton/ha kerosok, indeks mutu 48,08, dan<br />indeks tanaman 94,01. Produktivitas PVH 09 1,861 ton/ha kerosok dengan indeks mutu dan indeks tanaman<br />45,08 dan 83,97. Ketahanan lapangan NC 100 terhadap penyakit lanas dan layu bakteri lebih rendah dibanding<br />PVH 09, tetapi NC 100 lebih tahan terhadap TMV dan TEV dibanding PVH 09.
Purwati RD, Herwati A. 2016. Evaluation of quantitative and qualitative morphological characters of sunflower . Sunflower (Helianthus annuus L.) germplasm collection in ISFCRI was characterized aiming to distinguish the morphological characters of each genotype. Based on that information it would be possible to observe the diversity and to choose appropriate parent genotypes for successful hybridization. The investigation was carried out in the Pasirian Experimental Station, Lumajang District, East Java, Indonesia located at 110 m above the sea level (113° E, 8° S) in the 2015 growing season. Thirty-three germplasm accessions were characterized. Each accession was planted in 32 m² plot size with four lines. Fertilizer dose was 75 kg Nitrogen + 30 kg P 2 O 5 + 30 kg K 2 O per ha. The results showed that the low variation value in some quantitative characters such as seed size, weight of 100 seeds, seeds thickness, plant height, leaf size, ray floret length, bract length, head diameter, the flowering time, and seed oil content. The qualitative characters exhibited high coefficient of variation values with only one exception-pollen formation in sunflower inflorescences. These results indicated that on the base of their qualitative morphological characters, sunflower accessions possessed high diversity. The seed size and seed thickness showed significant positive correlation with 100 seeds weight. These two characters might be used as selection criteria in sunflower breeding programs for appropriate screening of parental genotypes included in hybridizing process aiming the increase of plant productivity.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.