Uji Galur Harapan Kedelai (Glycine max (L.) Merr) Terhadap Cekaman Kekeringan

Kurniasari, Sri Fatmi (2019) Uji Galur Harapan Kedelai (Glycine max (L.) Merr) Terhadap Cekaman Kekeringan. Sarjana thesis, Universitas Brawijaya.

Abstract

Produksi kedelai pada tahun 2016 diperkirakan mencapai 885.000 ton biji kering , mengalami penurunan 8.06% dibandingkan tahun 2015 yang mencapai angka 963.183 ton biji kering dengan luas panen 614.095 ha dan pruduktivitas 1.57 t/ha (BPS, 2016). Untuk meningkatkan produksi kedelai dalam negeri melalui strategi peningkatan produktivitas dan perluasan areal tanam dengan pemanfaatan lahan–lahan marginal pada lahan kering, diperlukan upaya untuk menguji varietas yang adaptif dan memiliki produksi hasil yang optimal, terutama toleran terhadap cekaman kekeringan air. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh serta menguji katahanan galur kedelai (Glycine max L. Merr) terhadap cekaman kekeringan air, sedangkan hipotesis adalah cekaman kekeringan air mempengaruhi hasil panen tanaman kedelai dan mampu bertahan pada kondisi 75% KL. Penelitian dilaksanakan pada November 2017 sampai dengan Februari 2017 di Green House BALITKABI di Kabupaten Malang. Penelitian dilakukan menggunakan RAKF dua faktor (galur dan tingkat cekaman). Pengamatan destruktif (28, 42, 56, dan 70 HST) terdiri dari tinggi tanaman, luas daun, panjang akar, berat kering akar. Parameter pengamatan non-destruktif yaitu umur berbunga dan jumlah bunga. Parameter hasil terdiri dari berat kering total tanaman, jumlah polong per tanaman (polong bernas dan hampa), jumlah biji per tanaman, bobot biji kering per tanaman, bobot 100 biji, umur panen dan indeks panen. Hasil penelitian menunjukkan tinggi tanaman, luas daun, panjang akar dan berat kering akar, jumlah bunga, berat kering total tanaman, jumlah polong, jumlah polong bernas, jumlah polong hampa, bobot biji per tanaman, bobot 100 biji dan indeks panen varietas Dering 1 tidak berbeda nyata dengan keempat galur pada kondisi cekaman kekeringan 75% kapasitas lapang. Galur G1, G3 dan G15a tanaman kedelai memiliki keseragaman yang tinggi dengan varietas Dering 1.

English Abstract

The production of soybeans in 2016 is estimated at 885.000 tons of dry seeds, decreased by 8,06% compared to 2015 which reached 963.183 tons of dry seeds with 614.095 hectare of harvested area and 1,57 tons per hectare of productivity (BPS, 2016). To increase the domestic production of soybean, a productivity improvement strategy is carried out and the expansion of planting areas by using marginal lands such as on dry land, efforts are required to test the adaptive varities and which has optimal yield of production, especially that has tolerant of water drought stress. The purpose of the research was to determined the effect and test the resistance of soybean (Glycine max L. Merr) strains of water drought stress, and the hypothesis was drought stress water affected to the yield of soybean and could be resist at the level of 75% field capacity. The research were conducted on November 2017 to February 2018 at the green house operated by Balai Penelitian Tanaman dan Umbi, Malang District. The research were conducted in Randomized Block Design Factorial 2 factors (lines and variety). The destructive observation (28,42,56,70) are plant height, leaf area, root length, root dry weight. The observation of non-destructive are flowering time and number of flowers. The observation of yield are total dry weight, number of pods, number of seeds per plant, weight of seeds per plant, weight of 100 seeds, harvested time and harvest index. The result has showed that plant height, leaf area, root length, root dry weight, number of flowers, total dry weight, number of pods, number of non empty pods, number of empty pods, weight of seeds per plants, weight of 100 seeds and harvest index of Dering 1 variety had no significantly difference from the four lines of soybean in conditions od drought stress 75% of field capacity. The G1, G3, G15a lines has high uniformity such as Dering 1 variety.

Item Type: Thesis (Sarjana)
Identification Number: SKR/FP/2019/594/051907368
Uncontrolled Keywords: -
Subjects: 600 Technology (Applied sciences) > 633 Field and plantation crops > 633.3 Legumes, forage crops other than grasses and legumes > 633.34 Soybeans
Divisions: Fakultas Pertanian > Agroekoteknologi
Depositing User: soegeng sugeng
Date Deposited: 18 Aug 2020 03:04
Last Modified: 18 Aug 2020 03:04
URI: http://repository.ub.ac.id/id/eprint/174144
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