Durian (Durio zibethinus Murr.) is a tropical fruit grown in Southeast Asia and it has high nutritional and economic values and highly appreciated by consumers in Indonesia. Unfortunately, there are several obstacles in planting durian in Indonesia, specifically in Aceh. One of the abstacles is the scarcity of superior durian plants. Generally, plant conservations done conventionally through vegetative propagation. However, this technique has disadvantage such as harming the initial plants. Therefore, plant culture tissue has been used as a modern technique to develop durian plants. The objective of this research was to evaluate the effect of kinetin and 2,4 D on development of durian leaf explants through in-vitro bioassay. The research was conducted at Tissue Culture Laboratory, Faculty of Agriculture, Malikussaleh University from January to April 2019 using Completely Randomized Design (CRD) Factorial with 2 factors observed. The first factor was Kinetin (K): 0.0, 0.1 and 0.5 ppm. The second factor was auxin 2,4 D: 0.0, 0.5 and 1.0 ppm. The results showed that the in-vitro application of kinetin affected the induction of leaf callus. The application of 0.5 ppm of kinetin gave the best result compared to others. The in-vitro application of 2,4 D 0.5 ppm also possessed the best result compared to others. There was no interaction beween in-vitro application of kinetin and 2,4 D on the growth of durian leaf callus at all parameters observed.

Acehnese pomelo is considered as a potential fruit to be developed for its economic and nutritional values. However, there is a main problem in developing this fruit. Pomelo sometimes is grown from seeds, but nowadays the fruits are often found to be having lesser seeds or even seedless. Besides, it is quite challenging to grow this local pomelo not only due to the scarce of the seeds, but it also cannot be conventionally germinated. Therefore, we need to develop this fruit through tissue culture. The purpose of this study was to investigate the effect of growth regulators on germination of pomelo seeds in vitro and its organ formation from in vitro root explants seed-originated of pomelo. The study was conducted at Plant Tissue Culture Laboratory, Faculty of Agriculture, Malikussaleh University. In October 2018 to April 2019. The research was divided into two separate experiments: 1) in vitro germination of pomelo seeds and 2) in vitro organ formation from root explants from of pomelo seeds. The first experiment using Complete Randomized Design (CRD) with 10 replications. The only factor observed was the use of BAP (0 and 2 mg/l). The second experiment was the examination of plant organ formation from root explants of pomelo seeds. This experiment had 2 factors observed. The first factor was different concentrations of BAP (0, 1, and 2 mg/l). The second factor was the different concentration of IBA (0, 1.25, and 2.5 mg/l). The results indicated that the application of BAP influenced the germination of pomelo seeds. The application of 2 mg/l BAP attributed to slower growth of shoots and roots, but it demonstrated better number of shoots, roots and leaves compared to application of 0 mg/l BAP. Pamelo root explants can form adventitious shoots on media eventhough without growth regulator (BAP 0 mg/l + IBA 0 mg/l), but optimization still needs to be done in order to obtain the best concentration to initiate shoot formation.

Tanaman Jeruk Purut Manis (Citrus hystrix) merupakan salah satu spesies jeruk yang khas dari Aceh. Budidaya tanaman jeruk purut manis menghadapi banyak kendala dan permasalahan dari segi perbanyakan tanaman hingga perkembangannya. Oleh karena itu dikhawatirkan tanaman jeruk purut manis Aceh terancam punah. Tujuan dari penelitian ini adalah untuk mendapatkan karakter dan tingkat kemiripan tanaman jeruk purut manis lokal Aceh dan jeruk purut berdasarkan marka morfologi bagian vegetatif tanaman. Penelitian ini dilakukan dalam dua tahap. Tahap pertama adalah eksplorasi tanaman jeruk purut manis, dan tahap kedua adalah karakterisasi morfologi bagian vegetatif tanaman. Data morfologi bagian vegetatif tanaman dianalisis dengan program NTSYS (Numerical taxonomy and multivariate analisis system, Versi 2.10). Hasil penelitian menunjukkan bahwa tanaman buah jeruk purut manis lokal Aceh terdapat di kecamatan Gunci dan Banda Baro. Tanaman jeruk purut manis memiliki perbedaan morfologi dengan jeruk purut pada bagian batang, cabang dan daun. Koefisien kemiripan jeruk purut manis dan jeruk purut asal Aceh Utara berdasarkan morfologi bagian vegetatif tanaman adalah rendah sampai tinggi yaitu 46-89%.

The purpose of this study was to determine the effect of colchicine on changes in ploidy watermelon. The research was conducted in Agroecotechnology laboratory Universitas Malikussaleh, Microtechnique laboratory Agronomy and Horticulture Departement, Bogor Agricultural University, and Beuringen, Murah Mulia subdistrict, North Aceh. This research used Completely Randomized Design (CRD) two factors. The first factor was watermelon seed soaking time in colchicines 0,02% ie.0, 24,36, and 48 hours. The second factor was the concentration of the colchicine solution on the sprout growth point i.e. 0, 0,1, and 0,2 %. The results showed that plants were given colchicine became to shorter and fewer number of leaves than plants without any treatment. Colchicine could increase the size of the stomata, but it did not change the shape of stomata. Plants that were given colchicine had the potential to ploidy multiplication.

Bawang merah merupakan salah satu tanaman sayuran yang banyak manfaatnya dan permintaannya juga tinggi. Produksi tanaman bawang merah di Kabupaten Aceh Barat masih rendah, terutama karena penanaman dilakukan di lahan gambut, dan varietas yang adaptif terhadap lahan tersebut belum tersedia. Tujuan penelitian untuk membandingkan pertumbuhan dan hasil umbi dari beberapa varietas nasional bawang merah pada lahan gambut di Meulaboh, Aceh Barat. Penelitian dilaksanakan pada lahan percobaan milik Dinas Pertanian Tanaman Pangan dan Hortikultura Kabupaten Aceh Barat dan Laboratorium Agroekoteknologi Fakultas Pertanian Universitas Malikussaleh, mulai Januari hingga April 2024. Percobaan menggunakan Rancangan Acak Kelompok (RAK) satu faktor dengan tiga ulangan, yang terdiri atas tujuh varietas, yaitu Gayo, Birma, Cirebon, Singkil Gajah, Bima Brebes, Tajuk, dan Batu Ijo Hasil penelitian menunjukkan bahwa varietas bawang merah memiliki pertumbuhan dan hasil tanaman yang berbeda pada semua peubah yang diamati. Tinggi dan jumlah daun varietas Cirebon, Gayo, dan Birma (varietas dataran tinggi) lebih rendah dibandingkan dengan varietas dataran rendah lainnya. Varietas Batu Ijo memiliki diameter umbi terbesar, tetapi jumlahnya sedikit, sedangkan Bima Brebes memiliki diameter besar dengan jumlah umbi yang banyak. Varietas Tajuk dan Bima Brebes menunjukkan nilai bobot segar dan bobot kering umbi terbaik di antara varietas lainnya.