Tujuan penelitian ini untuk menjelaskan pertimbagan hukum putusan Hakim Mahkamah Konstitusi No. 100-PUU-8-2015 Tentang Pemilihan Calon Tunggal Pilkada Serentak di Indonesia dan implikasinya dalam pelaksanaan. Penelitian ini termasuk penelitian hukum normatif, pendekatan dalam penelitian adalah perundang-undangan dan pendekatan kepustakaan, jenis dan sumber datanya ialah data perimer dan data sekunder, tehnik pengumpulan data dengan menggunakan studi pustaka dan tehnik analisis data adalah dari hal yang bersifat induktif kededuktif yaitu data umum tentang konsepsi hukum baik berupa asas-asas hukum, postulat serta ajaran-ajaran (doktrin). Putusan Mahkamah Konstitusi calon tunggal dalam pilkada adanya kekosongan hukum mana kala syarat paling kurang dua pasangan calon tersebut tidak terpenuhi. Mahkamah Konstitusi menilai adanya kekosongan hukum tersebut telah mengancam tidak terlaksananya hak-hak rakyat untuk dipilih dan memilih karena dua alasan. Pertama, penundaan kepemilihan serentak berikutnya sesungguhnya telah menghilangkan hak Rakya untuk dipilih dan memilih pada pemilihan serentak berikutnya. Kedua apabila penundaan demikian dapat dibenarkan, tetap tidak ada jaminan bahwa pada pemilihan serentak berikutnya itu, hak Rakyat untuk dipilih dan memilih akan dipenuhi. Dengan demikian menurut Mahkamah Konstitusi Pilkada yang ditunda sampai pemilihan berikutnya hanya kerena tidak terpenuhinya syarat paling sedikit dua pasangan calon bertentangan dengan UUD 1945. The purpose of this study is to explain the legal considerations of the decision of Constitutional Court Judge No. 100-PUU-8-2015 Regarding the Election of Single Candidates for Simultaneous Local Elections in Indonesia, the legal implications of the decision of the judges of the Constitutional Court No. 100 / PUU / 8/2015 on the election of a single candidate for simultaneous elections in Indonesia. This research includes normative legal research, the approach in research is legislation and library approach, the types and sources of data are perimer data and secondary data, data collection techniques using library studies and data analysis techniques are from things that are inductive, that is general data about the concept of law in the form of legal principles, postulates and teachings (doctrine). The decision of the Constitutional Court is the sole candidate in the election where there is a legal vacuum where when the requirements of at least two candidate pairs are not fulfilled. The Constitutional Court assesses that the legal vacuum has threatened the failure of the people's rights to be elected and elected for two reasons. First, the next simultaneous election delay has actually eliminated the Rakya's right to be elected and elected in the next simultaneous election. Second, if such delays are justified, there is still no guarantee that in the next simultaneous election, the people's right to be elected and elected will be fulfilled. Accordingly, according to the Constitutional Court Pilkada which was postponed until the next election only because it did not fulfill the requirements of at least two candidate pairs contrary to the 1945 Constitution.
Pará rubber produces natural latex which is essential for the industries. Rubber plant in immature phase is prone to macronutrient deficiencies due to improper management practices in the field and the nature of immature plants that have sensitive physiological responses under stress conditions. The study aimed to assess the effect of macronutrient limitation on immature rubber trees’ photosynthetic capacity and growth. The immature rubber was pot-grown inside the greenhouse with a completely randomized design experiment and nutrient limitations used as the treatments. The treatments consisted of 5 levels, namely, NPK; NP (-K); NK (-P); PK (-N); Control (-NPK). Photosynthetic capacity parameters (Vc max: maximum rate RuBisCO carboxylation, Jmax: RuBP regeneration rate, and TPU: Triose Phosphate Utilization), tree growth (plant height, flush number, leaf number, stem diameter), and leaf macronutrient (N, P, and K) concentrations were periodically measured. Welsch’s test (α = 0.05) continued with Games-Howell pairwise comparison, followed by Pearson’s correlation test and polynomial regressions were performed to describe the nutrient limitation and photosynthetic capacity relationships. Results showed that the leaf nutrient concentration corresponds with the given treatments, even though it was above the critical level for immature rubber. The limitation of N fertilization slightly reduced plant development and growth such as height, leaf number, flush number, relative growth rate, and photosynthetic capacities. However, the P and K limitation effect could not be observed clearly in the observation periods on growth and photosynthetic capacity parameters. Furthermore, the mobility rate of nutrients from the soil to the plants and its translocation inside plant organs played more essential role in plant growth and photosynthetic capacities. Prolonged observation periods on various rubber clones have to be performed to deeply understand the effects of nutrient deficiencies on immature rubber tree morphophysiological activities. HIGHLIGHTS Rubber plant in immature phase have sensitive physiological responses under stress conditions, and it is prone to macronutrient deficiencies due to improper management practices in the field Assessment of macronutrient limitation effect on immature rubber trees’ photosynthetic capacity and growth is essential to understand how the plants strive under the nutrient scarcity and providing a perspective which nutrient is more essential The N fertilization played more essential role compared to P and K, for immature rubber growth and photosynthetic activity GRAPHICAL ABSTRACT
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