EFFECT OF GIVINGGAMAL LEAF LIQUID ORGANIC FERTILIZER (Gliricidia septum) ON CHLOROPHYLL LEVELS AND FRESH WEIGHT OF PAKCOY (Brassica rapa L) PLANTS IN TOMOHON CITY

Anatje  Lihiang

Anatje Lihiang Department of Biology Education, Faculty of Mathematics and Natural Sciences of Earth Manado State University

Keywords: Pakcoy plant, POC gamal leaf, Chlorophyll, fresh weight

Abstract

Tomohon City is one of the cities in the North Sulawesi Province. The Government of North Sulawesi has established, Tomohon City as a center for the production of vegetable crops including mustard huma plants or known as pakcoy vegetables (Brassica rapa L.) . Pakcoy is a short-lived leaf vegetable plant and one genus with mustard has a high nutritional content such as beta-carotene, protein, vegetable fats, carbohydrates, fiber, Ca, Mg, Fe, sodium, vitamin A and vitamin C. Chlorophyll is a leaf green substance found in green plant parts, especially on leaves. One of the factors affecting the chlorophyll content in pakcoy leaves is the condition of the soil in this case the content of nutrients and nutrients in the soil. Tomeet the nutrient and nutrient content in the soil, namely by using organic fertilizers such as liquid organic fertilizer (POC) of gamal leaves. POC gamal leaves contain a lot of nutrients, especially N elements. Element N can affect the amount of chlorophyll levels in plants, and the fresh weight of pakcoy plants. This study aims to determine chlorophyll levels and wet weight in pakcoy plants after applying liquid organic fertilizer (POC) of gamal leaves. To find out the chlorophyll on pakcoy leaves, use the Portable Chlorophyll Meter SPAD-502 Plus tool while for wet weight using analytical scales. The highest chlorophyll content and fresh weight of pakcoy terd a pat plants in the P4 treatment (120 ml / l) POC of gamal leaves with a chlorophy content value of 37.56 and fresh weight of 312 .79 g while the lowest was found in the control treatment.

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