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All Journal Kultivasi Jurnal Sains Teh dan Kina
Heri Syahrian Khomaeni, Heri Syahrian
Pusat Penelitian Teh dan Kina Gambung Kotak Pos 1013, Bandung 40010
Agriculture, Biological Sciences & Forestry Computer Science & IT Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

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Variability and early selection for tea plant population derived from artificial crossings Khomaeni, Heri Syahrian; Sriyadi, Bambang
Jurnal Penelitian Teh dan Kina Vol 14, No 2 (2011)
Publisher : Research Institute for Tea and Cinchona

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.394 KB) | DOI: 10.22302/pptk.jur.jptk.v14i2.13

Abstract

The purpose of tea breeding is to develope new elite clones. Artificial crossings is the method for developing a new population with high genetic variability in respective traits followed by selection process. Genetic variability information is important in selection method. A hundred and five F1 plants were planted in 1991. These F1 plant were selected from F1 generations of several parental cross combinations between PS 1, PS 354, TRI 777, TRI 2024, TRI 2025, Kiara 8, KP 4, and Cin 143. The crosses were made in 1989. Observed variables were yield per bush, number of pekoe, number of dormant shoot (banji), weight of p+3 (pekoe with three leafs below), weight of p+2 (pekoe with two leafs below), and weight of banji. Phenotypic variance and standard deviation were made. The level of variability of all characters were evaluated. All plants with performance level greater than general mean plus one and a half standard deviation were selected for respective traits. Results showed that yield per bush, number of pekoe, and number of banji had wide variability. The variability of p+3, p+2, and banji had narrow variability. Eight bushes were selected with yield potential ranging from 4,290 kg/ha/year and 6,261 kg/ha/year.
Growth improvement of immature quinine by applying coffee husk compost and biofertilizer Maxiselly, Yudithia; Sa'adah, Dinda Rachmatis; Ariyanti, Mira; Prayoga, Muhammad Khais; Khomaeni, Heri Syahrian
Kultivasi Vol 23, No 2 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i2.54560

Abstract

The growth of immature Cinchona ledgeriana can be optimized by applying fertilizers to fill the nutritional needs of plants. Nutrients can be provided through the help of microorganisms derived from organic fertilizers and biofertilizers. This study aims to evaluate the effect of applying coffee husk compost and biofertilizer consortium on the growth of immature quinine plants. This research was conducted from November 2023 – January 2024 at Gambung Tea and Cinchona Research Center, Pasir Jambu District, Bandung Regency, West Java. The research used a randomized block design with four replications and six treatments, namely control (Urea 17 g.plant-1 + SP36 8 g.plant-1 + KCl 4 g.plant-1); solid coffee husk compost 3 kg.plant-1; liquid coffee husk compost 80 mL.L-1; biofertilizer 10 mL.L-1; solid coffee husk compost 3 kg.plants-1 + biofertilizer 10 mL.L-1; and liquid coffee husk compost 80 mL.L-1 + biofertilizer 10 mL.L-1. The results showed applying organic fertilizer from coffee husk waste and biofertilizer improved the growth of immature quinine plants. Combination of liquid organic fertilizer from coffee husk waste 80 mL.L-1 water + biofertilizer 10 mL.L-1 water produced a high increase in leaf area. Combination of solid organic fertilizer from coffee husk waste 3 kg. plants-1 + biofertilizer 10 mL.L-1 water showed the highest plant height increment. It implied the success of quinine improvement growth at the immature phase by applying coffee husk waste and biofertilizers. 
Co-Authors Bambang Sriyadi, Bambang Mira Ariyanti Prayoga, Muhammad Khais Sa'adah, Dinda Rachmatis Yudithia Maxiselly, Yudithia