Produksi dan Kualitas Benih Tanaman Sorgum (Sorghum bicolor (L.) Moench) Varietas Samurai 1 dengan Perbedaan Umur Panen Tanaman pada Musim Hujan.

Abstract

Penentuan umur panen yang tepat serta penggunaan benih bermutu erat hubungannya terhadap produksi tanaman sebagai pakan ternak. Penelitian ini bertujuan mengevaluasi kemampuan produksi dan viabilitas tanaman sorgum (Sorghum bicolor (L.) Moench) varietas Samurai 1 sebagai pakan ternak pada umur panen yang berbeda pada musim hujan. Rancangan acak kelompok digunakan pada 3 perlakuan umur panen, dengan 3 kelompok terhadap hasil pertumbuhan dan produktivitasnya. Rancangan acak lengkap digunakan pada 3 perlakuan umur panen, dengan 4 ulangan terhadap viabilitas benih. Perlakuan umur panen yaitu hari ke-100, 105 dan 110 hari. Hasil menunjukkan perlakuan tidak berbeda nyata terhadap tinggi tanaman, jumlah daun, diameter batang, berat segar biomassa, berat kering daun, berat kering batang, berat kering malai utuh, berat kering total jerami sorgum, berat kering brangkasan malai, berat kering biomassa malai, berat benih pipil kering, rataan jumlah benih kering, produksi benih kering, tetapi berbeda nyata terhadap berat 1000 benih kering dan viabilitas benih sorgum varietas Samurai 1. Umur panen 105 hari memberikan hasil terbaik untuk mendapatkan produksi biomassa dan kualitas benih tanaman.

The determination of the right harvest age and the use of quality seeds are closely related to crop production as animal feed. This study aimed to evaluate the seed production and viability of sorghum (Sorghum bicolor (L.) Moench) Samurai 1 variety at different harvesting ages during rainy season. Randomized block design was used for 3 treatments of different harvesting age, with 3 blocks as replicants for growth yield and productivity. Completely randomized design was used for 3 treatments of harvesting age, with 4 replicates for seed viability. The harvest age was the 100th, 105th, and 110th days. The results showed that the treatments did not significantly affect plant height, number of leaves, stem diameter, total biomass, dry weight of leaves, dry weight of stems, dry weight of intact panicles, total weight of sorghum straw, dry weight of stover panicle, dry weight of panicle biomass, dry seed weight, average number of dry seeds, and dry seed production, but significantly affected the 1000 dry seed weight and viability of Samurai 1 sorghum seed. Harvesting at 105 days resulted in the best results for biomass production and seed quality