ABSTRACT
RUDI PURNOMO: The Effect of mycorrhizae inoculation for growth and production of some sorghum varieties under the immatured plants 1 of rubber land. supervised by JONATAN GINTING and CHARLOQ.
This research was conducted to study effect of some dosage mycorrhrizae inoculation for growth and production of some sorghum varieties under the immatured plants 1 of rubber land. This research was conducted at Sungei Putih Research Center, Galang district, Nort Sumatera Province from October 2014 – January 2015, using group random design with varieties (numbu and kawali) and Mycorrhizae inoculation (0 gram, 10 gram, 20 gram and 30 gram) with repeated three times. Parameters observed were plant height, number of leaves, stem diameter, flowering time, harvesting time, yield per plant, yield per plot and 1000 grains weight.
The result showed that varieties affected significantly for plant height, stem diameter, flowering time, harvesting time, yield per plant, yield per plot and 1000 grains weight. Mycorrhizae inoculation affected significantly for plant height, number of leaves, stem diameter, harvesting time, yield per plant and yield per plot. There interaction between varieties and mycorrhizae inoculation did not affected significantly for all parameters.
Keywords: mycorrhizae inoculation, sorghum, varieties
ABSTRAK
RUDI PURNOMO:Pengaruh inokulasi mikoriza terhadap pertumbuhan dan produksi beberapa varietas tanaman sorgum pada gawangan tanaman karet TBM I, dibimbing oleh JONATAN GINTING dan CHARLOQ.
Penelitian ini dilakukan untuk mengetahuipengaruh beberapa dosis inokulasi mikoriza terhadap pertumbuhan dan produksi beberapa varietas sorgum pada gawangan tanaman karet TBM I.Penelitian dilaksanakan di Balai Penelitian Sungai Putih, Kecamatan Galang, Sumatera Utara pada Oktober 2014 - Januari 2015, menggunakan rancangan acak kelompok dua faktor perlakuan yaitu varietas (numbu dan kawali) dan inokulasi mikoriza (0 gram,10 gram, 20 gram, dan 30 gram) dengan 3 ulangan. Parameter yang diamati adalah tinggi tanaman, jumlah daun, diameter batang, umur berbunga, umur panen, produksi per tanaman, produksi per plot dan bobot 1000 biji.
Hasil penelitian menunjukkan bahwa perlakuan varietas berpengaruh nyata terhadap tinggi tanaman, diameter batang, umur berbunga, umur panen, produksi per tanaman, produksi per plotdan bobot 1000 biji. Perlakuan inokulasi mikoriza berpengaruh nyata terhadap tinggi tanaman, jumlah daun, diameter batang, umur panen, produksi per tanaman dan produksi per plot. Interaksi keduanya berpengaruh tidak nyata terhadap seluruh parameter amatan.
Kata kunci : inokulasi mikoriza, sorgum, varietas
