Efektivitas Pertumbuhan dan Hasil Tanam Beberapa Kultivar Kedelai (Glycine max (L) Merr.) dengan Pemberian Polietilena Glikol (PEG) Untuk Simulasi Cekaman Kekeringan
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引用次数: 0
Abstract
AbstrakPenelitian ini bertujuan untuk mengetahui pengaruh interaksi varietas kedelai dengan konsentrasi Polietilen glikol (PEG) yang diberikan terhadap pertumbuhan serta hasil tanam dan menentukan varietas kedelai yang toleran terhadap cekaman kekeringan. Penelitian dilakukan dengan menggunakan metode Rancangan Acak Kelompok (RAK) faktorial yang terdiri dari 2 faktor. Faktor pertama adalah varietas kedelai, yaitu Gepak Kuning, Argomulyo, dan Anjasmoro, sedangkan faktor kedua adalah konsentrasi PEG yang diberikan, yaitu 0% (kontrol), 5%, 10%, dan 15%. Pengamatan dilakukan secara destruktif pada hari ke-20, 40, 60 setelah tanam dan saat panen dengan ulangan dilakukan sebanyak tiga kali, sehingga terdapat 36 unit percobaan. Parameter yang diamati meliputi bobot basah, bobot kering, luas daun, laju asimilasi bersih, dan bobot biji pertanaman. Data yang diperoleh dianalisis menggunakan ANOVA pada taraf 5% dan dilakukan uji Honestly Significance Different. Hasil penelitian menunjukkan bahwa tidak ada interaksi antara varietas kedelai dan konsentrasi PEG yang diberikan. Pada variabel yang diamati varietas Argomulyo memiliki respon fisiologi lebih baik dengan nilai rata-rata bobot basah, bobot kering, luas daun, laju asimilasi bersih, dan bobot biji pertanaman tertinggi dibandingkan Anjasmoro dan Gepak Kuning pada seluruh konsentrasi PEG. AbstractThe first aim of this research was to determine the effect of the interaction of soybean varieties with the concentration of Polyethylene glycol (PEG) given on plant growth and yield, and secondly to determine soybean varieties that are tolerant to drought stress. The research was conducted using the factorial Completely Randomized Design (RAK) method consisting of 2 factors. The first factor is the soybean variety, namely Gepak yellow, Argomulyo, and Anjasmoro, while the second factor is the PEG concentration given, namely 0% (control), 5%, 10%, and 15%. Observations were carried out destructively on days 20, 40, 60 after planting and at harvest with repetitions carried out three times, so there were 36 experimental units. The parameters observed included wet weight, dry weight, leaf area, net assimilation rate, and seed weight planted. The data obtained were analyzed using ANOVA at the 5% level and an Honestly Significance Different test was carried out. The results showed that there was no interaction between soybean varieties and the PEG concentration provided. In the variables observed, the Argomulyo variety had a better physiological response with the highest average value of wet weight, dry weight, leaf area, net assimilation rate, and seed weight compared to Anjasmoro and Gepak Kuning at all PEG concentrations.