The response of chili (Capsicum annuum L.) to oriental fruit fly infestation (Bactrocera dorsalis) is highly variable among varieties. The differences in the resistance level of chili to oriental fruit fly infestation are presumed to be determined by the characteristics of chili fruit. This study aims to evaluate the morphochemical characteristics of different resistance levels of chili fruits to oriental fruit fly infestation in field conditions. The field test was carried out at the research station of the Indonesian Vegetable Research Institute (IVEGRI), West Java, Indonesia. Six essential derivatives of C. annuum from IVEGRI, consisting of three resistant and three susceptible varieties, were established in a prior investigation. The test population included 132 plants, with 22 plants planted for each variety. The resistance parameters observed were oviposition incidence, yield loss, fitness index, and chili fruit characteristics (morphology, nutrition, volatile compounds). The results showed that there were morphological and chemical differences between the varieties resistant and susceptible to oriental fruit fly infestation. The morphological characteristics of the fruit (width, weight, and thickness of fruit flesh) and fruit shape at pedicel attachment had an impact on the resistance level of fruit flies. Meanwhile, volatile compounds, water content, carbohydrates, and fiber content were among the chemical features that influenced oriental fruit fly infestation.

Perakitan varietas cabai tahan penyakit antraknosa relatif memerlukan waktu yang lama, tetapi varietas tahan antraknosa tetap penting diwujudkan sebagai kontribusi bidang pemuliaan tanaman untuk menurunkan tingkat pemakaian pestisida oleh petani, menjaga keseimbangan lingkungan, dan menyediakan produk yang aman bagi konsumen. Penelitian ini bertujuan menyeleksi tetua tahan antraknosa dan mengetahui keberhasilan persilangan antara tetua tahan dengan varietas Balitsa yaitu Kencana dan Tanjung-2 dalam rangka memperluas keragaman genetik ketahanan terhadap antraknosa sebagai bahan dasar untuk program seleksi. Penelitian dilaksanakan di Laboratorium Mikologi dan Rumah Kasa Balai Penelitian Tanaman Sayuran dari bulan Januari-Juli 2013. Penelitian dibagi menjadi dua tahap, tahap pertama adalah pemilihan tetua di laboratorium mikologi dan tahap kedua adalah persilangan antara tetua tahan dan tetua rentan di rumah kasa. Penelitian dibagi menjadi dua tahap, tahap pertama ialah pengujian ketahanan enam tetua di laboratorium mikologi yang didisain menggunakan rancangan acak lengkap (RAL) dengan empat ulangan. Tahap kedua adalah persilangan antara tetua tahan dan tetua rentan di rumah kasa, tetua betina dan jantan ditanam menggunakan RAL faktorial dengan lima ulangan. Faktor pertama ialah tetua betina yang terdiri atas dua varietas yaitu Kencana dan Tanjung-2, dan faktor kedua adalah tetua jantan yang terdiri atas empat genotip hasil introduksi yaitu AVPP 0207, AVPP 0407, PP 0537–7558, dan Perisai. Berdasarkan hasil pengujian tingkat ketahanan terhadap antraknosa di laboratorium, AVPP 0207 dan Perisai diketahui tahan terhadap antraknosa (Colletotrichum acutatum). Persilangan empat tetua jantan donor tahan antraknosa dengan dua tetua betina varietas Balitsa (Kencana dan Tanjung-2) telah dilaksanakan tanpa adanya barrier. Keberhasilan persilangan dan pembentukan biji sangat dipengaruhi oleh tetua betina dan tidak dipengaruhi oleh tetua jantan. Kisaran keberhasilan persilangan antara 37,16–67,64%, sedangkan benih bernas yang dihasilkan bervariasi antara 269–784 benih per tanaman. Daya berkecambah benih hasil persilangan berkisar antara 68–96%. Persilangan dengan tetua betina Kencana menghasilkan persentase benih baik yang lebih tinggi dengan kualitas benih yang lebih baik dibandingkan dengan persilangan menggunakan Tanjung-2 sebagai tetua betina. Penelitian ini perlu dilanjutkan untuk mengetahui penampilan fenotipik dan status ketahanan terhadap antraknosa generasi F1.

This data article describes the analysis of volatile compounds in susceptible and resistant chili variety via gas chromatography/mass spectrometry (GC-MS). The volatile compounds from two chili varieties which have different level of resistance to fruit fly infestation were captured by a solid-phase micro extraction method. The obtained extracts were then subjected to GC-MS for separation and identification of the compounds in three developmental stages (buds, flowers and fruits). The retention times and the detected compounds were identified as well as their relative peak areas. The data were provided in Supplementary 1 (Table 1) and Supplementary 2 (Table 2).

One of the secondary metabolites produced by chili peppers is ascorbic acid. Ascorbic acid, better known as vitamin C, is a supplement that is widely consumed by humans. The study aims to map 37 varieties of chili peppers, consisting of 19 varieties of big chilies, 10 varieties of curly chilies and 8 varieties of cayenne peppers based on vitamin C levels. The chili peppers under study were planted at Lembang, West Java in March and harvested in August 2020. Measurements of vitamin C levels were conducted using the HPLC method. Vitamin C level data were mapped using the PAST 3.1 statistics program. The study succeeded in mapping chili varieties based on vitamin C levels to very low (2 varieties), low (10 varieties), medium (11 varieties), high (13 varieties), and very high (1 variety) categories. Big chili vitamin C levels ranged from 77.4 to 158.3 and averaged 122.7, curly chili vitamin C levels ranged from 92.9 to 168.0 and averaged of 137.5, and cayenne peppers vitamin C levels ranged from 45.6 to 144,9 with and averaged 92.2. The research showed that curly chilies had higher levels of vitamin C than big chilies and cayenne peppers.