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A'IDAH FAJAR NUR AFIFAH

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Abstrak (Bhs. Indonesia)

Penelitian ini bertujuan untuk mengetahui respon fisiologis tanaman  kubis dan tomat terhadap pematah angin di lahan pasir pantai serta  mendapatkan jenis pematah angin yang efektif untuk tanaman kubis dan tomat di lahan pasir pantai. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok Lengkap (RAKL) dengan tiga faktor perlakuan. Faktor pertama yaitu musim kemarau (M1) dan musim penghujan (M2). Faktor kedua adalah tanpa pematah angin (T0), pematah angin plastik 1,5 m (T1), pematah angin tanaman jagung 3 baris (T2), dan pematah angin tanaman jagung disela bedengan (T3). Faktor ketiga adalah tomat (K1) dan kubis (K2). Setiap faktor diulang sebanyak tiga kali. Analisis data hasil penelitian menggunakan uji F pada taraf kesalahan 5% dan apabila menunjukan pengaruh nyata maka akan dilakukan uji lanjut Duncan’s Multiple Range Test (DMRT) pada taraf kesalahan 5%. Hasil penelitian menunjukkan bahwa  respon fisiologis tanaman tomat dan kubis pada perlakuan tanpa pematah angin  berupa bukaan stomata rata-rata sebesar 5,77 µm, kerapatan stomata rata-rata 127,21 mm2, kadar klorofil 15,56 μ g/ml, kadar prolin 26,17 μ mol/g, kehijauan daun 41,51 SPAD unit, laju pertumbuhan tanaman 15,55 g/m2/minggu, dan indeks panen 0,33. Respon tanaman tomat dan kubis pada perlakuan pematah angin plastic 1,5 m berupa berupa bukaan stomata rata-rata sebesar 6,89 µm, kerapatan stomata rata-rata 125,45 mm2, kadar klorofil 15,90 μ g/ml, kadar prolin 15,60 μ mol/g, kehijauan daun 45,72 SPAD unit, laju pertumbuhan tanaman 20,98 g/m2/minggu, dan indeks panen 0,40. Respon tanaman tomat dan kubis pada perlakuan pematah angin tanaman jagung 3 baris berupa bukaan stomata rata-rata sebesar 6,28 µm, kerapatan stomata rata-rata 123,94 mm2, kadar klorofil 15,91 μ g/ml, kadar prolin 19,69 μ mol/g, kehijauan daun 42,68 SPAD unit, laju pertumbuhan tanaman 15,00 g/m2/minggu, dan indeks panen 0,40. Jenis pematah angin yang efektif untuk budidaya tanaman tomat dan kubis di lahan pasir pantai adalah pematah angin plastik 1,5 meter karena memberikan respon fisiologis bukaan stomata, kehijauan daun, laju pertumbuhan tanaman, dan indeks panen tertinggi, serta kadar prolin terendah.

Abtrak (Bhs. Inggris)

This study aims to determine the physiological response of cabbage and tomato plants to windbreaks in coastal sandy soils and to obtain effective windbreaks for cabbage and tomatoes in coastal sandy soils. The design used in this study was Complete Randomized Block Design with three treatment factors. The first factor is the dry season (M1) and the rainy season (M2). The second factor was no wind break (T0), 1.5 m plastic wind break (T1), 3 rows corn wind break (T2), and corn plant wind break between beds (T3). The third factor is tomato (K1) and cabbage (K2). Each factor was repeated three times. Analysis of the research data using the F test at an error level of 5% and if it shows a real effect, a Duncan's Multiple Range Test (DMRT) will be carried out at an error level of 5%. The results showed that the physiological response of tomato and cabbage plants to the treatment without wind breaks was an average stomatal opening of 5.77 µm, an average stomata density of 127.21 mm2, chlorophyll content of 15.56 µg/ml, proline content of 26 .17 μ mol/g, leaf greenness 41.51 SPAD units, plant growth rate 15.55 g/m2/week, and harvest index 0.33. The response of tomato and cabbage plants to the 1.5 m plastic windbreak treatment was in the form of an average stomatal opening of 6.89 µm, an average stomata density of 125.45 mm2, chlorophyll content of 15.90 µg/ml, proline content of 15 .60 μ mol/g, leaf greenness 45.72 SPAD units, plant growth rate 20.98 g/m2/week, and harvest index 0.40. The response of tomato and cabbage plants to the windbreaker treatment of 3-row corn plants was the average stomata opening was 6.28 µm, the average stomata density was 123.94 mm2, the chlorophyll content was 15.91 µg/ml, the proline content was 19.69 μ mol/g, leaf greenness 42.68 SPAD units, plant growth rate 15.00 g/m2/week, and harvest index 0.40. The response of tomato and cabbage plants to the wind breaking treatment of corn plants interrupted by beds was the average stomatal opening of 6.01 µm, average stomata density of 134.85 mm2, chlorophyll content of 12.21 µg/ml, proline content of 21.65 μ mol/g, leaf greenness 42.62 SPAD units, plant growth rate 18.67 g/m2/week, and harvest index 0.40. An effective type of windbreaker for tomato and cabbage cultivation on sandy beach land is a 1.5 meter plastic windbreaker because it provides a physiological response to stomatal openings, leaf greenness, plant growth rate, and the highest yield index, as well as the lowest proline content.

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