EVALUATION OF SOME GOOSEBERRY VARIETIES REGARDING ADAPTABILITYIN THE MIDDLE URALS

This paper discusses the observation data on 23 gooseberry varieties on 4 fruiting seasons (2016-2019) under the conditions of the Middle Urals. The varieties were evaluated in terms of adaptive and economic charac-ters: winter hardiness, frost resistance, productivity, drought resistance, and large-fruit character. The observa-tions and counts were carried out according to the “Pro-gram and methodology for the study of fruit, berry and nut-bearing crop varieties”. Two gooseberry varieties Berill and Avangard stood out with good adaptation to the Middle Urals and high levels of economic characters (freezing -up to 2.0 score points; average productivity -1.1-2.2 kg per bush; average fruit weight -3.6-3.8 g; low spinosity of shoots). The varieties Shershnevskiy, Seyanets Lefora, Eridan, Demidovskiy, Stanichniy, Kolobok, Kuybyshevskiy Chernoplodniy showed good adaptability; the maximum freezing was within 2.0 points; the general condition of plants at the end of study -4 points.Under good precipita-tion, the varieties Demidovskiy, Uralskiy Vinograd, Kolobok, Berill, Avangard and Serenada showed genetical-ly inherent large-fruit character (the average berry weight -over 5.0 g; the maximum -6.1-8.2 g).

Effects of Pesticides on Vegetative Growth and Fruit Yield of Seedless Mandarin at the Basic Design Period in Thai Nguyen Province, Vietnam

Aims: This study was carry out to evaluate the effects of pesticide on vegetative growth, fruit yield, fruit quality of sweet seedless Mandarin citrus seedless in basic design period at Thai Nguyen province Study Design: The study was carried out in Dai Tu district, Thai Nguyen province in 2017-2018. The experiment included three treatments were designed in Randomized Complete Block Design with three replications. Results and Discussion: The vegetative growth of tree and shoot, fruit character and fruit quality was collected. Results indicated that T2 treatment (Trebon 10 EC) had the best results in vegetative growth, fruit quality and fruit yield. Conclusion: It was concluded that T2 treatment application has greatly enhanced vegetative growth, fruit character, and fruit quality of sweet seedless Mandarin under field conditions.

Uji Daya Hasil Tujuh Genotipe Cabai Rawit pada Ekosistem Dataran Tinggi Pangalengan, Jawa Barat

<p>Cabai rawit merupakan salah satu sayuran utama petani di dataran tinggi, karena memiliki nilai ekonomi tinggi dan dapat dengan mudah ditanam secara tumpang gilir dengan komoditas sayuran lainnya. Tujuan pengujian adalah mengetahui daya hasil genotipe-genotipe harapan cabai rawit pada agroekosistem dataran tinggi di Pangalengan. Pengujian menggunakan rancangan kelompok lengkap teracak, dengan empat ulangan. Bahan pengujian terdiri dari empat genotipe harapan cabai rawit yang merupakan koleksi plasma nutfah Balai Penelitian Tanaman Sayuran, yaitu CRM 01, CRM 02, CRM 03, dan CRM 04 serta tiga varietas pembanding, yaitu Hot Seed, Patra, dan Bara. Pengujian dilakukan di Desa Gunung Cupu, Kecamatan Pangalengan, Kabupaten Bandung, 1.500 m dpl. Waktu pengujian bulan Maret sampai dengan Desember 2014. Data yang diamati meliputi data morfologi tanaman dan produktivitas hasil. Hasil pengujian menunjukkan bahwa terdapat perbedaan karakter fenotipik antartujuh genotipe yang diuji. Genotipe CRM 03 menampilkan potensi hasil yang tertinggi (9,64 ton/ha), dengan karakter buah muda berwarna putih dan buah tua berwarna merah oranye. Genotipe CRM 03 dan genotipe Bara sangat cocok ditanam di dataran tinggi Pangalengan karena memiliki potensi hasil yang tinggi, yaitu CRM 03 mencapai 9,64 ton/ha sementara varietas pembanding Bara 8,76 ton/ha. Genotipe CRM 03 diharapkan akan menjadi varietas unggul baru cabai rawit yang mempunyai produktivitas tinggi dan cocok ditanam di Pangalengan dan akan mendongkrak produktivitas cabai rawit di Pangalengan dan daerah lainnya yang mempunyai agroekologi mirip dengan dataran tinggi Pangalengan.</p><p>Chili (Capsicum sp.) is the main vegetable for farmers in the highland because it has high economic value and can be grown intercrop with others vegetables. The objective of the research was to test advanced genotypes of chili on yield under ecosystem highland of Pangalengan. The experimental design was randomized complete block design with four replications. Four genotypes of chili that were CRM01, CRM 02, CRM 03, and CRM 04 derived from advanced genotype from Indonesian Vegetables Research Institute and three varieties as comparison (Hot seed, Patra, and Bara) were used for treatments. The trial was conducted at Pangalengan, Bandung District, West Java Province, 1.500 m above sea level. The experiment was conducted since March until December 2014. Data observed was plant morphology and yield productivity. The result showed that was different phenotypic among the seven genotypes tested. CRM 03 Genotype was showed highest yielding (9.64 ton/ha), which has fruit character white and red orange for young and mature fruit. CRM 03 genotypes as well as variety of Bara was suitable to be grown in highland of Pangalengan due to high yielding. Yield obtained from CRM 03 was 9.64 ton/ha, whereas, Bara was 8.76 ton/ha. CRM 03 genotype hopefully can be released as a new variety with high yielding and adapted for Pangalengan and others locations similar to Pangalengan.</p>

A Four-carpeled Fruit Mutant in Jojoba

Typical female jojoba [Simmondsia chinensis (Link) Schneider] plants produce three-carpeled fruit that contain one to three seeds. Examination of ≈13,000 plants in a nursery at the Univ. of California, Riverside, revealed one mutant plant whose distillate flowers had four stigmas and four-carpeled fruit. The mutant plant had 42% one-seeded, 39% two-seeded, and 19% three-seeded fruit. In contrast, wild-type sibling plants averaged 83% one-seeded, 16% two-seeded, and 1% three-seeded fruit. The additional carpel in these fruit did not result in production of four seeds per fruit, but drastically altered the frequency of one-, two-, and three-seeded fruit in the mutant plant. This fruit character may serve as a useful genetic marker and, since about one-fifth of the fruit produce three seeds, it maybe useful in studies of multipaternal effects on seed development and seed-oil quality and quantity.