Short communication: Pattern of chlorophylls content declined during partial submergence for rice varieties cultivated in North Sulawesi at the vegetative stage

Abstract. Nio SA, Ludong DPM, Siahaan R. 2022. Short communication: Pattern of chlorophylls content declined during partial submergence for rice varieties cultivated in North Sulawesi at the vegetative stage. Biodiversitas 23: 2451-2456. Submergence or flooding stress limits plant growth various physiological, anatomical, and morphological aspects. This study examined leaf chlorophyll as a physiological response some imposed Ten cultivars, i.e., Permata, Superwin, Cigeulis, Pulo Manado, TB, Ombong, Serayu, Temo, Burungan, Inpari 31, were grown plastic trays on planting media greenhouse, then watered to field capacity using mixture water fertilizer every second day two weeks. The plants submerged 18 cm from media's surface, (total chlorophyll, a, b) measured spectrophotometer (? 649 665 nm) 0, 3, 6 9 days submergence. (total, decreased treatment. highest contents observed cv. Superwin 0 (before commenced) higher than 6, after treatment (p<0.05). data presented here supported that is potential indicator rice, including local phase.