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Benefits of treating seeds of irrigated rice with gibberellic acid


, : Benefits of treating seeds of irrigated rice with gibberellic acid. Lavoura Arrozeira 48(422): 9-12

In field trials in 1992-93 in 3 areas of Rio Grande de Sul, Brazil, seeds of 6 rice cultivars were treated with 0 or 1.0 g GA3/50 kg seed before sowing by 58 farmers according to their recommended date in Oct.-Dec. GA3 significantly increased seedling emergence and seedling height 14 d and 21 d after sowing, emergence rate, number of panicles and seed yield/msuperscript 2.

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Related references

Souza, P.R. de; Menezes, V.G., 1991: Gibberellic acid as a seed treatment in irrigated rice. In field trials at Taim, Rio Grande do Sul, Brazil in 1991, rice cv. BR-IRGA 410 and BR-IRGA 409 (grown on 2 different farms) were sown with or without seed treatment with 15 g PRO-GIBB (gibberellic acid)/50 kg seed. Plant population 10 d after em...

Takahashi K., 1968: Studies on the growth response of the rice m plant to exogenous gibberellic acid ii relationship between the applied gibberellic acid and light in the different organs of rice m seedlings. Tohoku Journal Of Agricultural Research: 157-165

Bevilaqua, G.A.P.; Scwengber, J.E.; Peske, S.T., 1996: Cultivar differences in treatment of rice seeds with gibberellic acid. In field trials in Sao Paulo in 1992/93, seeds of 6 semi-dwarf rice cultivars were treated with 1.0 g gibberellic acid/50 kg seeds or untreated before sowing in October-December. Examination 14 and 21 days after sowing showed that gibberellic acid...

Dey B.; Sircar S.M., 1968: The presence of an abscisic acid like factor in nonviable rice m seeds iaa auxin gibberellic acid uv absorption spectra enz alpha amylase. Physiologia Plantarum 21(5): 1054-1059

Nagaswara-Rao, A.; Hanumantha-Rao, V.R.malingeswara-Rao, K., 1980: Phytotoxicity of antibiotics and its reversal by gibberellic acid in germinating rice seeds. Indian journal of botany 3(1): 65-69

Sastry, K.S.K.ishna; Goud, J.V., 1967: Growth response of gamma-irradiated rice seeds to gibberellic acid treatment. Gibberellic acid application overcame the stunting effect of irradiation and increased height.

Yang, Y.F.; Shi, T.S.; Lu, D.Z., 1990: Amylase activity and gibberellic acid regulation in germinating hybrid rice seeds. Seeds of hybrid cv. Shanyou 6 were treated with 10-5 mg GA3/ml, and amylase activity during germination was compared with its parents and 2 other conventional cultivars. The amylase isoenzymes in Shanyou 6 developed faster and were expressed earli...

Vieira, A.R.; Vieira, M. das G.G.C.; Fraga, A.C.; Oliveira, J.A.; Santos, C.D. dos, 2002: Action of gibberellic acid (GA3) on dormancy and activity of alpha -amylase in rice seeds. The efficacy of gibberellic acid (GA) in breaking seed dormancy was evaluated in the highly dormant rice cultivar Urucuia. Seeds were subjected to pre-drying in a forced air circulation chamber (40 degrees ) for 7 days or soaked in 30 ml of GA sol...

Tung MingSung, 1996: Gibberellic acid-induced amylase activity in half embryoless rice seeds. Rice cv. Tai-Keng 3 seeds were cut in half, and the endosperm incubated in different concentrations of gibberellins. Amylase activity increased as gibberellin concentration increased from 10-10 to 10-6 M. A 20-fold increase in activity was recorde...

Takahashi K., 1968: Studies on the growth response of the rice m plant to exogenous gibberellic acid i response of the japonica rice m seedlings to applied gibberellic acid under light and dark conditions. Tohoku Journal Of Agricultural Research: 153-156