Studi Tingkat Herbivori Pada Mangrove Rhizophora Di Kawasan Mangrove Lembung Paseser, Bangkalan, Madura

Prakasa, Ricky Putra (2020) Studi Tingkat Herbivori Pada Mangrove Rhizophora Di Kawasan Mangrove Lembung Paseser, Bangkalan, Madura. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Tumbuhan merespon aktivitas herbivori dengan cara mengeluarkan senyawa metabolit sekunder, penolak (deterrent), dan nutrien daun. Penelitian ini bertujuan untuk mengetahui perbedaan dan korelasi antara tingkat herbivori dan kandungan kimiawi daun Rhizophora apiculata dan Rhizophora stylosa pada habitus yang berbeda di mangrove Lembung Paseser, Madura. Pengambilan sampel daun rusak dilakukan secara acak pada habitus pohon dan pancang. Hasil penelitian menunjukkan bahwa tingkat herbivori pada R. apiculata dan R. stylosa menunjukkan perbedaan yang signifikan, dimana luas area daun rusak dan persentase herbivori R. apiculata lebih tinggi dibanding R. stylosa (p=0,0001, p=0,0002). Kandungan nutrien daun pada R. apiculata lebih tinggi dibanding R. stylosa meski tidak signifikan pada fosfor (p=0,438). Sedangkan kandungan metabolit sekunder pada R. apiculata lebih tinggi dibanding R. stylosa secara signifikan pada lignin (p=0,0001), dan polifenol meskipun tidak signifikan (p=0,136). Kandungan deterrent/penolak lebih tinggi secara signifikan pada R. stylosa dibanding R. apiculata pada serat kasar (p=0,001). Sedangkan kandungan nutrien daun pada R. stylosa lebih tinggi dibanding R. apiculata meski tidak signifikan pada kadar air (p=0,567). Tingkat herbivori pada spesies R. apiculata secara signifikan berkorelasi positif dengan luas area kerusakan daun (r=0,928;p=0,018) dan secara signifikan berkorelasi negatif dengan lignin (r=-0,697;p=0,037), serta secara tidak signifikan berkorelasi positif dengan kadar air (r=0,299;p=0,434) dan nitrogen (r=0,241;p=0,392), dan secara tidak signifikan berkorelasi negatif dengan serat kasar (r=-0,287;p=0,454), polifenol (r=-0,192;p=0,621), dan fosfor (r=-0,318;p=0,404). Tingkat herbivori pada spesies R. stylosa secara signifikan berkorelasi positif dengan luas area kerusakan daun (r=0,810;p=0,008), dan kadar air (r=0,796;p=0,010), dan secara signifikan berkorelasi negatif dengan fosfor (r= -0,749;p=0,020), serta secara tidak signifikan berkorelasi positif dengan serat kasar (r=0,032;p=0,936), dan secara tidak signifikan berkorelasi negatif dengan polifenol (r=-0,376;p=0,324) dan lignin (r=-0,549;p=0,126). ================================================================================================================== Plant respond to herbivory activity by releasing secondary metabolites, deterrents, and leaf nutrients. This study aims to determined the differences and correlations between herbivory levels and chemical contents of the leaves of R. apiculata and R. stylosa in different habitus of mangrove in Lembung Paseser, Madura. Sampling of damaged leaves are randomly on tree and sapling habitus. The results showed that the level of herbivores on R. apiculata and R. stylosa showed significant differences, where the leaf area was damaged and the percentage of herbivores R. apiculata was higher than R. stylosa (p = 0.0001, p = 0.0002). The leaf nutrient content in R. apiculata was higher than that of R. stylosa although it was not significant in phosphorus (p = 0.438). While the content of secondary metabolites in R. apiculata was significantly higher than R. stylosa in lignin (p = 0.0001), and polyphenols although not significant (p = 0.136). The deterrent / repellent content was significantly higher in R. stylosa than R. apiculata in crude fiber (p = 0.001). While the leaf nutrient content in R. stylosa was higher than R. apiculata although it was not significant in water content (p = 0.567). Herbivory levels in the R. apiculata species were significantly positively correlated with the area of leaf damage (r = 0.928; p = 0.018) and significantly negatively correlated with lignin (r = -0,697; p = 0.037), and were not significantly positively correlated with water content (r = 0.299; p = 0.434) and nitrogen (r = 0.241; p = 0.392), and not significantly negative correlation with crude fiber (r = -0.287; p = 0.454), polyphenols (r = -0.192; p = 0.621), and phosphorus (r = -0.318; p = 0.404). Herbivory levels in R. stylosa species were significantly positively correlated with the area of leaf damage (r = 0.810; p = 0.008), and water content (r = 0.796; p = 0.010), and significantly negatively correlated with phosphorus (r = - 0.749; p = 0.020), and not significantly correlated positively with crude fiber (r = 0.032; p = 0.936), and insignificantly negatively correlated with polyphenols (r = -0.376; p = 0.324) and lignin (r = - 0.549; p = 0.126).

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Aktivitas herbivori, Kimiawi daun, Rhizophora Herbivory level, Leaf chemistry, Rhizophora
Subjects: Q Science
Q Science > QH Biology
Q Science > QH Biology > QH301 Biology
Q Science > QH Biology > QH541 Ecology
Divisions: Faculty of Science > Biology > 46201-(S1) Undergraduate Thesis
Depositing User: RICKY PUTRA PRAKASA
Date Deposited: 04 Aug 2020 03:15
Last Modified: 11 Aug 2020 02:19
URI: http://repository.its.ac.id/id/eprint/76869

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