Keragaan beberapa Varietas Sorgum terhadap Aplikasi Kitosan Iradiasi

Abstract

Sorghum is a versatile, drought-resistant cereal crop. Increasing sorghum production needs special attention, although Indonesia has the potential for sorghum development. Irradiated chitosan can be used as a plant growth promoter and organic fertilizer to improve the performance of sorghum. This study aims to provide recommendations for sorghum varieties that are suitable for development and planting in dry land and are known to be able to control pests organically with the application of chitosan irradiation with optimum concentration. The experimental design was a separate plot with sorghum varieties (Numbu, Keller, and Kawali) as the main plot and the irradiated concentrations of chitosan (without irradiation, 2, 4, and 6 ml.L<sup>-1</sup>) as subplots. The results showed that the sorghum variety and the optimum chitosan irradiation concentration of 2.76 and 5.15 ml.L<sup>-1</sup> increased the dry weight of stover per plant by 93.04 g per plant and increased the sugar content of sorghum with Brix 15.03%. The varieties of Numbu, Keller, and Kawali significantly affected plant height, number of leaves, weight of 100 seeds, and plant fresh weight per plot or forage of sorghum.

Effects of Plant Growth Promoter on Growth Response and Yield of Several Sorghum Varieties in Sukoharjo

“…The research result of [16] explained that the number of sorghum leaves correlated with the length of the vegetative period, as evidenced by each addition of one leaf it took 3-4 days. The Keller variety has a longer vegetative period than the Numbu and Kawali varieties [17]. The more the number of leaves, the photosynthetic process will increase which is followed by an increase in cell activity in division, enlargement, and elongation.…”

Peningkatan Peresapan Air ke Dalam Tanah Melalui Aplikasi Pupuk Organik Sekam Padi pada Pertanaman Sorgum (Sorghum bicolor, L.)

“…Tingginya peresapan air pada perlakuan V1 disebabkan varietas Numbu memiliki tutupan tajuk yang lebih tinggi dibandingkan dengan varietas Kawali. Hasil penelitian Anggita, et al (2021) menunjukkan bahwa pada 6 minggu setelah tanam, rerata jumlah daun varietas Numbu (9,27 helai) nyata lebih tinggi dibandingkan dengan varietas Kawali (8,67 helai). Penutupan tajuk yang tinggi akan melindungi permukaan tanah dari tumbukan langsung air hujan, sehingga pori-pori tanah tidak mengalami kerusakan dan tetap bisa meresapkan air kedalam tanah.…”