Response of several local gogo paddy varieties at different potassium nitrate concentrations to breaking seed dormancy

Yunida Berliana; Rosi Mustika Sari; Bambang Surya Adji Syahputra; Dona K Sinambela

Authors

Yunida Berliana Universitas Tjut Nyak Dhien, Indonesia
Rosi Mustika Sari Universitas Tjut Nyak Dhien, Indonesia
Bambang Surya Adji Syahputra Universitas Tjut Nyak Dhien, Indonesia
Dona K Sinambela Food Crops and Horticulture of Seed Certification Center, Indonesia

Keywords:

KNO3, Local Paddy Gogo, Seed, Dormancy, North sumatra

Abstract

Rice cultivation is often faced with land availability problems, especially paddy fields, which require special irrigation. Rice cultivation in dry land is called gogo paddy or paddy field. Efforts to increase rice production using gogo paddy have great potential to be developed to overcome obstacles in the availability of paddy fields. Gogo Paddy cultivation is often faced with seed dormancy problems, where the seeds are unable to germinate so that it takes a long time for dormancy to break and consequently it is difficult to get uniform growth. This study aims to examine the Effect of kalium nitrat (KNO₃ Concentration to breaking dormancy on Several Local Gogo paddy Varieties in North Sumatra. The experiment was carried out at the laboratory of North Sumatra Food Crops and Horticulture Seed Certification center from March 2025 to May 2025. This study uses a Factorial Complete Random Design (CRD). The first are consisting of local Gogo paddy variety factors, namely; V1 (Si Kambiri Lumat), V2 (Si Dampal), V3 (Si Ponu) and V4 (Si Lombu) and the KNO₃ Concentration namely; K0(control), K1(1%), K2 (2%) and K3(3%) The observations made are on the Radicule Length, Plumula Length, Normal Sprout Number, Germination Power Percentage, Dry Weight of the sprout. The results of the study show KNO₃ treatment (3% concentration) had an effect on the variables of radicule length, plumula length, normal germination count, germination percentage and dry weight of sprouts and that the difference in varieties has a real effect on the breakage of seed dormancy, the variety that shows the best influence is the Dampal variety.

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