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Effect of Storage Temperature and Postharvest Tuber Treatment with Chemical and Biorational Inhibitors on Suppression of Sprouts During Potato Storage

Winnie Wanjiku Murigi
Winnie Wanjiku Murigi
, 
Richard Ombui Nyankanga
Richard Ombui Nyankanga
 e 
Solomon Igosangwa Shibairo
Solomon Igosangwa Shibairo
   | 21 gen 2021
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Pubblicato online: 21 gen 2021
Pagine: 83 - 94
Ricevuto: 01 feb 2019
Accettato: 01 set 2020
DOI: https://doi.org/10.2478/johr-2021-0001
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© 2021 Winnie Wanjiku Murigi et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Effect of storage temperature (23 °C and 10 °C) on sprout length of three cultivars ‘Asante’, ‘Kenya Mpya’, and ‘Shangi’ following tuber treatment with CIPC, DMN, peppermint oil and untreated stored for 24 weeks
Effect of storage temperature (23 °C and 10 °C) on sprout length of three cultivars ‘Asante’, ‘Kenya Mpya’, and ‘Shangi’ following tuber treatment with CIPC, DMN, peppermint oil and untreated stored for 24 weeks

Fig. 2

Effect of storage temperature (10 °C; 23 °C) on sprout number of three cultivars ‘Asante’, ‘Kenya Mpya’ and ‘Shangi’ following tuber treatment with CIPC, DMN, peppermint oil and untreated stored for 24 weeks
Effect of storage temperature (10 °C; 23 °C) on sprout number of three cultivars ‘Asante’, ‘Kenya Mpya’ and ‘Shangi’ following tuber treatment with CIPC, DMN, peppermint oil and untreated stored for 24 weeks

Sprout suppressant and cultivar effects on percentage of potato tubers that sprouted (mean ± standard error) subsequent to postharvest treatment with CIPC, DMN, PPO and nontreated tubers at 10 °C and 23 °C in season 2

Storage duration (weeks)
Storage Temp. Treatment Cultivar 2 4 6 8 10 12 14 16 18 20 22 24
10 °C Control ‘Asante’ 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 27.6±7.8 74.1±17.8 80±22.9 100±28.8 100±31.7 100±30.5 100±31.2
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0
DMN 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 24.8±10.4 29.6±9.4 32.7±12.7 41.5±14.8
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 25±6.8 20.7±7.9 15.7±7.7
Control ‘Kenya Mpya’ 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 41.7±17.1 83.1±28.3 100±33.2 100±26.7 100±27.1 100±25.7
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0
DMN 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 26.7±6.3 16.7±3.3 13.3±3.6
Control ‘Shangi’ 0±0.0 0±0.0 0±0.0 17.8±5.1 71.2±20.1 100±31.4 100±38.5 100±37.3 100±33.2 100±32.1 100±31.3 100±29.7
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0
DMN 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 14.9±7.7 20.7±9.6 26.7±11.6 29.6±11.8 32.7±6.5
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 30.3±11.8 19.3±8.0 14.8±5.0 124±3.3 12±2.6
23 °C Control ‘Asante’ 0±0.0 0±0.0 0±0.0 0±0.0 78.4±21.7 93.3±26.3 100±28.6 100±33.5 100±25.9 100±33.3 100±30.4 100±37.9
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 3.3±1.2 6.7±3.4 16.7±9.7
DMN 0±0.0 0±0.0 0±0.0 0±0.0 58.6±18.4 60.7±19.0 62.8±18.3 65.3±22.6 64.9±18.3 62.7±19.5 62.7±18.3 62.7±16.0
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 23.8±9.1 17.6±5.2 18.7±4.3 18.7±5.4 23.7±9.8
Control ‘Kenya Mpya’ 0±0.0 0±0.0 0±0.0 0±0.0 80±27.4 86.1±23.3 100±32.8 100±35.1 100±42.2 100±45.2 100±39.8 100±40.9
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 3.3±1.5 6.7±2.9 10±2.1
DMN 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 2.7±1.3 5.3±1.6 12.8±4.4 15.9±4.8 19.7±5.1
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 26.7±9.2 29.6±6.9 20.9±5.6 20.7±5.4 23.6±5.8
Control ‘Shangi’ 0±0.0 83.1±23.3 89.7±33.8 100±40.2 100±35.5 100±41.1 100±38.1 100±37.2 100±40.2 100±35.1 100±27.6 100±38.6
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 8.9±3.7 10.7±3.8 24.3±7.1
DMN 0±0.0 4.8±1.3 20.7±4.5 65.3±24.6 70.7±26.9 74.8±22.3 77.2±21.1 79.6±21.5 79.7±22.2 78.5±26.9 77.3±22.3 78.7±29.6
PPO 0±0.0 0±0.0 0±0.0 0±0.0 39.3±17.1 34.2±9.4 27.4±7.8 24.9±6.7 18.5±4.6 21.3±4.2 22.8±4.5 27.1±6.7

Sprout suppressant and cultivar effects on percentage of potato tubers that sprouted (mean ± standard error) following postharvest tuber treatment with CIPC, DMN, PPO and nontreated tubers stored at 10 °C and 23 °C in season 1

Storage duration (weeks)
Storage Temp. Treatment Cultivar 2 4 6 8 10 12 14 16 18 20 22 24
10 °C Control ‘Asante’ 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 30±8.8 83.3±20.5 90±26.4 100±32.8 100±36.4 100±35.0 100±35.3
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0
DMN 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 30±12.0 33.3±10.8 36.7±14.6 46.7±17
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 30±7.8 23.3±9.1 16.6±8.8
Control ‘Kenya Mpya’ 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 46.7±17.1 93.3±27.3 100±31.0 100±24.7 100±25.3 100±24.0
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0
DMN 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 26.7±5.9 16.7±3.8 13.3±4.1
Control ‘Shangi’ 0±0.0 0±0.0 0±0.0 20±5.8 80±23.1 100±29.4 100±36.5 100±35.3 100±31.4 100±30.6 100±29.3 100±27.8
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0
DMN 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 16.7±7.7 23.3±9.6 30±11.6 33.3±11.8 36.7±6.5
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 33.3±11.8 23.3±8.0 16.7±5.0 10±3.3 10±2.6
23 °C Control ‘Asante’ 0±0.0 0±0.0 0±0.0 0±0.0 80±24.72 100±23.03 100±28.6 100±33.5 100±22.9 100±24.7 100±26.0 100±43.67
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 3.3±1.2 6.7±3.4 16.7±9.7
DMN 0±0.0 0±0.0 0±0.0 0±0.0 60±18.4 63.3±19.0 63.3±18.3 63.3±22.6 63.3±18.3 63.3±19.5 63.3±18.3 63.3±16.0
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 26.7±9.1 20±5.2 20±4.3 20±5.4 26.6±9.8
Control ‘Kenya Mpya’ 0±0.0 0±0.0 0±0.0 0±0.0 80±23.4 96.7±20.3 100±28.7 100±30.3 100±36.23 100±39.2 100±39.8 100±35.9
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 3.3±1.5 6.7±2.9 10±2.1
DMN 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 3.3±1.1 6.7± 1.4 13.3±4.4 16.7±4.8 20±5.0
PPO 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 30±10.6 33.3±5.9 23.3±4.8 20±5.4 26.6±5.8
Control ‘Shangi’ 0±0.0 93.3±26.8 100±28.8 100±34.2 100±30.5 100±35.1 100±35.1 100±31.8 100±34.2 100±30.0 100±23.6 100±33.0
CIPC 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 0±0.0 10±3.2 13.3±3.3 23.3±6.1
DMN 0±0.0 3.3±1.1 16.7±3.8 73.3±22.6 76.7±23.4 76.7±19.0 76.7±18.0 76.7±18.4 76.7±19.0 76.7±23.0 76.7±19.1 76.7±25.3
PPO 0±0.0 0±0.0 0±0.0 0±0.0 46.7±14.6 36.7±8.0 26.7±9.0 23.3±7.7 16.7±5.4 20.0±4.8 23.3±5.2 30.0±7.7
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