Pengaruh letak biji pada malai terhadap kualitas benih pada berbagai umur panen sorgum (Sorghum bicolor L.)

Farida, Umi (2012) Pengaruh letak biji pada malai terhadap kualitas benih pada berbagai umur panen sorgum (Sorghum bicolor L.). Undergraduate thesis, Universitas Islam Negeri Maulana Malik Ibrahim.

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Abstract

INDONESIA:

Sorgum merupakan tanaman pilihan paling sesuai guna mendukung upaya pemerintah dalam mewujudkan ketahanan pangan nasional melalui diversitas pangan. Matangnya bunga sorgum yang tidak serentak pada satu malai diduga akan menjadi kendala dalam menyediakan benih berkualitas tinggi. Bunga pada bagian ujung malai matang lebih awal dibanding bunga pada tengah dan pangkal malai. Fenomena matangnya bunga yang tidak serentak ini, menarik untuk dikaji guna membandingkan perkembangan kualitas benih dari posisi yang berbeda pada berbagai umur pemanenan. Dari penelitian ini dapat diketahui apakah benih yang terletak pada posisi berbeda pada malai mempunyai kualitas fisiologis yang berbeda dari setiap umur pemanenan.

Penelitian ini dilakukan dua tahap yaitu penanaman sorgum yang bertempat di lahan pertanian Kecamatan Loceret Kabupaten Nganjuk kemudian uji laboratorium dilakukan di Laboratorium Ekologi Jurusan Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri (UIN) Maulana Malik Ibrahim Malang pada bulan Februari sampai Mei 2012. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan faktor tunggal yaitu letak biji pada malai yang terdiri dari ujung, tengah, dan pangkal. Masing-masing perlakuan diulang sebanyak tiga kali pengamatan meliputi uji kadar air, berat kering, daya kecambah, dan vigor. Pengamatan dilakukan mulai umur 65 HST sampai 105 HST dengan interval waktu 5 hari.

Data yang diperoleh dari penelitian di analisis dengan analisis varian untuk mengetahui perbedaan antar perlakuan. Jika hasil analisis ada perbedaan maka digunakan uji lanjut LSD (Least Significant Defference) dengan tingkat kepercayaan 5% (α = 0,05). Hasil penelitian ini menunjukkan benih sorgum yang berasal dari posisi ujung, tengah, dan pangkal malai mencapai masak fisiologis yang hampir serentak yaitu pada umur 90 HST yang ditandai dengan kadar air mencapai kisaran 25 – 29%. Biji yang berasal dari ujung malai lebih tinggi kualitas fisiologisnya daripada biji yang berasal dari tengah dan pangkal malai.

ENGLISH:

Sorghum is the most appropriate choice of plants to support government efforts to achieve national food security through diversity of food. Sorghum flowers that do not mature simultaneously on a single panicle is expected to be an obstacle in providing high quality seeds. Flower at the end of panicles will mature earlier than the middle and base of the flower panicles. The phenomenon of flower that not mature at the same time is interesting to be studied in order to compare the development of quality seeds from different positions at different ages of harvest. From this study can be known whether the seeds are located at different positions on the panicle have a different physiological quality of every age harvesting.

The research was carried out in two stages, that are planting sorghum that located in farms in the Sub District Loceret Nganjuk Regency, later laboratory tests performed at the Laboratory of Ecology Department of Biology Faculty of Science and Technology of the State Islamic University (UIN) Maulana Malik Ibrahim Malang from February to May 2012. The design of the study is a Completely Randomized Design (CRD) with a single factor, namely the location of seeds on a panicle that consisting of the tip, middle, and base. Each treatment was repeated three times as many observations include testing the water content, dry weight, germination, and vigor. Observations made from age 65 to 105 HST HST at intervals of 5 days.

Data obtained from studies in the analysis with analysis of variance to determine differences between treatments. If there are differences in the results of the analysis used up LSD test (Least Significant Difference) with a confidence level of 5% (α = 0.05). The results showed that sorghum seeds derived from the position of the tip, middle, and base of the panicle reached physiologically ripe almost simultaneously at the age of 90 HST is characterized by the moisture content reaches the range of 25-29%. Seeds derived from the panicle tip higher than the physiological quality of seeds from the middle and base of the panicle.

Item Type: Thesis (Undergraduate)
Supervisor: Suyono, Suyono and Abidin, Munirul
Keywords: Malai; Benih; Sorgum (Sorghum bicolor L.); Panen; Panicles; Seed; Sorgum (Sorghum bicolor L.); Harvest
Subjects: 06 BIOLOGICAL SCIENCES > 0607 Plant Biology > 060703 Plant Developmental and Reproductive Biology
Departement: Fakultas Sains dan Teknologi > Jurusan Biologi
Depositing User: Hesty Fajarwati Suryani Hesty
Date Deposited: 06 Aug 2015 01:18
Last Modified: 06 Aug 2015 01:18
URI: http://etheses.uin-malang.ac.id/id/eprint/985

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