EFFECT OF PYRACLOSTROBIN CONCENTRATION ON QUALITY SHOOTS OF ASSAMICA TEA (Camellia sinensis var. assamica) DURING THE DRY SEASON

Amar Ma’ruf, Eka Tarwaca Susila Putra, Sriyanto Waluyo

Abstract


This study aims to determine the effect of pyraclostrobin concentration on quality shoots of assamica tea clones during the dry season. Then, determine the optimal pyraclostrobin concentration levels at each clone tea were studied to maintain quality of tea shoots during the dry season. The experiment was compiled in a randomized complete block design (RCBD) single factor, namely pyraclostrobin concentration level, each will be tested on three tea clones. Clones tea tested are TRI 2024, PGL 15, and Gambung 7. Sources of pyraclostrobin which used in this study is a systemic fungicide with trademark Cabrio 250 EC. This material contains pyraclostrobin 250 gram liter-1, equivalent to 25%. Pyraclostrobin concentration levels which tested consists of four levels, namely 0.0 milliliters ha-1, 50 milliliters ha-1, 100 milliliters ha-1, and 150 milliliters ha-1. Pyraclostrobin spraying is done only once per cycle plucking tea shoots, duration per cycle is 30 days. The results shown pyraclostrobin spraying able to increase the better quality of tea shoots clone Gambung 7 trought increasing in peko shoots per banjhi shoots ratio. While clones TRI 2024 and PGL 15 less responsive to pyraclostrobin concentration treatment than clone Gambung 7. Pyraclostrobin able to increase total chlorophyll content in clones PGL 15 and Gambung 7. All of three pyraclostrobin concentrations level tested equally well in increasing the total chlorophyll content for the two clones. The best pyraclostrobin concentration level for clone Gambung 7 to increase  quality of tea shoots during the dry season is 100 milliliters ha-1. NRA effect on quality of tea shoots clone Gambung 7. The higher NRA, the higher quality of tea shoots.

Keywords


Pyraclostrobin, Quality, Tea Shoot

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DOI: http://dx.doi.org/10.15835/agrisp.v97i1-2.12131



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