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INDONESIA
Kultivasi
ISSN : 14124718     EISSN : 2581138X     DOI : -
Core Subject : Agriculture,
Jurnal Kultivasi diterbitkan oleh Departemen Budidaya Pertanian, Fakultas Pertanian, Universitas Padjadjaran. Jurnal ini terbit tiga kali dalam setahun, yaitu pada bulan Maret, Agustus, dan Desember. Kultivasi mempublikasikan hasil penelitian dan pemaparan ilmiah dari para dosen dan peneliti di bidang budidaya tanaman. Bidang kajian yang dipublikasikan jurnal ini diantaranya adalah agronomi, pemuliaan tanaman, ilmu gulma, teknologi benih, teknologi pasca panen, ilmu tanah, dan proteksi tanaman.
Arjuna Subject : -
Articles 444 Documents
Growth and yield response of Watani Wado job's tears (Coix lacryma-jobi L.) to the application frequency of phosphate fertilizer and paclobutrazol in different growing seasons Mahdya, Arifa Syahanna; Farahdillah, Rizka; Kadapi, Muhamad; Nurmala, Tati
Kultivasi Vol 23, No 1 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i1.47355

Abstract

Job's tears (Coix lacryma-jobi L.) is a carbohydrate source functional food crop that can be developed as a substitute for rice. This study aims to determine the best application frequency of phosphate (P) fertilizer and paclobutrazol for supporting the growth and yield of job's tears in both rainy and dry seasons. The research was conducted from November 2021 - November 2022 at the Ciparanje research station and Laboratory Centre Universitas Padjadjaran, Jatinangor, Sumedang. The experiment used a randomized block design (RBD) consisting of P fertilizer application frequency (once, twice, and thrice) and paclobutrazol application frequency (once, twice, and thrice) and three replications.. The best season was determined using the T-test. The results showed that there was no interaction between growth components and job's tears yield in both rainy and dry season planting. P fertilizer application had a significant effect on lateral branch per tiller in the rainy season and root-shoot ratio in the dry season. Paclobutrazol application had a significant effect on the number of tillers per plant and number of seeds per plant in the rainy season, and the lateral branch per tiller in the dry season. Planting in the rainy season had the best growth and yield components compared to the dry season.
The effectiveness of garlic extract against Spodoptera litura on Chili Firmansyah, Efrin; Hidayat, Cecep; Roosda, Anna Aina; Pradana, Adinda Nurul Fatah Adi; Soelistijono, R
Kultivasi Vol 22, No 3 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i3.50318

Abstract

Spodoptera litura is a polyphagous pest and attack many families of cultivated plants, such as chili plants. Application of synthetic pesticides is still the mainstay for controlling this pest in the field. To support eco-friendly plant protection management, it is important to explore potential natural materials such as garlic extract. This research aims to determine the potential of garlic extract in controlling S. litura on chili plants, and to see its indirect effect on chili yield. The research was carried out in two sites, in the laboratory and the field. The experiment used a completely randomized design with 6 treatments and 4 replications. The concentrations of garlic extract, i.e., control (0%), 24%, 26%, 28%, 30%, and 32%. The results showed the application of garlic extract had a significant effect on the mortality of S. litura, the frequency of attacks, and the intensity of pest attacks in the field, and had an effect on the variable number of fruit and fruit weight of chili plants. The LC50 and LC90 values reached 19.66% and 29.97% in the laboratory, and 28.30% and 34.3%% in the field, respectively. The LT50 and LT90 values from the 32% garlic extract in the laboratory were respectively 3.37 and 7.23 days. The application of garlic extraction affected growth and yield, i.e. healthy leaves, number of fruits, and weight of fruits in chili. The garlic extract is potentially used as an organic pesticide to suppress the S.litura attacks while keeping the plant's growth and yield. 
Correlation analysis between agronomic character and yield of Padjadjaran maize hybrids at medium and high population densities Yuwariah, Yuyun; Haysa, Qinthara Nail; Muhammad, Damara Bakti; Ruswandi, Dedi; Wicaksono, Fiky Yulianto
Kultivasi Vol 22, No 3 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i3.45210

Abstract

Maize is a prospective food commodity that developed in Indonesia. The use of hybrid corn gives better yield than open-pollinated varieties. Spacing management in hybrid maize production can reduce competition between plants, so that the plant canopy and roots can grow optimally. This research aimed to compare the differences in the phenotypic performance of the agronomic characters of Padjadjaran maize hybrid, determine the dominant agronomic characteristics, and determine the correlation between the growth and yield characteristics at medium- and high-population densities. The experiment was carried out from December 2021 until May 2022 at Sanggar Penelitian, Latihan dan Pengembangan Pertanian (SPLPP) Universitas Padjadjaran, Arjasari, Bandung Regency. This experiment used Randomized Completely Block Design analysis with 20 treatments of Padjadjaran maize hybrids and 4 check varieties, all treatments were replicated 3 times in both population densities. Statistical analysis used multiple regression linear analysis and correlation test. The experimental results showed that the yield of 20 genotypes of Padjadjaran maize hybrids at medium population density was influenced by the ear length, number of seeds per row, and number of seed rows, while in the high population density, it was influenced by number of seed rows. Correlation analysis revealed a positive and significant relationship between the growth and yield components in medium population density. Meanwhile, the correlation at high population density between the components of growth and yield was not consistent.
Additional cocopeat and coconut water improves the seedling growth of robusta coffee Anjarsari, Intan Ratna Dewi; Febiola, Anita; Ariyanti, Mira; Defri, Ifwarisan
Kultivasi Vol 23, No 1 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i1.50893

Abstract

Robusta coffee production can be sucessed by using high-quality seedlings that have good growth performance. One of several keys to success in seedling production is the choosing best planting medium and providing exogenous growth regulators. These include using cocopeat planting media and giving coconut water. This research aims to determine whether using cocopeat planting media and providing coconut water can increase the growth of robusta coffee seedlings. The experiment used a randomized complete group design with six treatments and four replications; each experimental unit consisted of three robusta coffee seedlings. The six tested treatments were control (topsoil 100%); cocopeat 50% + topsoil 50%; cocopeat 100%; topsoil 100% + coconut water 200 mL; cocopeat 50% + topsoil 50% + coconut water 200 mL; and cocopeat 100% + coconut water 200 mL. This study indicated that cocopeat and coconut water could increase the growth of robusta coffee seedlings. The composition of cocopeat 100% and the combination of topsoil 50% + cocopeat 50% had an improvement effect on the growth of robusta coffee seedlings.