GENOTYPE AND ABSCISIC ACID INTERACTIONON TUBER DORMANCY AND SPROUTINGDURING AMBIENT STORAGE IN POTATO
2024
Gupta, Himani | Zhawar, Vikramjit Kaur | Sharma, Sat Pal
Genotype and abscisic acid (ABA) interaction on tuber dormancy and sprouting were studied in the tubersof eleven potato genotypes during ambient storage. Tubers were harvested and hardened for ten days in the fields. Tuberweights were measured. Tubers were then stored after three treatments: 1) untreated tubers as such; 2) tubers treated withABA solution, 3) tubers treated with water. During storage, dormancy length was measured. The longest sprout length andsprout numbers were measured at 30, 37, 42, 45, 50 and 60 d after storage. Tuber rottage was measured at 72 d after storage.Results found tubers of Lady Rosetta and Kufri Sindhuri having low tuber weights and longer dormancy duration whilelesser sprouting and rottage compared to other genotypes. ABA treatment increased dormancy duration in Lady Rosetta,Kufri Neelkanth, Kufri Frysona, and Kufri Sindhuri. ABA treatment reduced sprouting in Kufri Neelkanth, Kufri Frysona,Kufri Chipsona 1, Kufri Ganga, Lady Rosetta, MP/06 39 and MS/8 1148. ABA treatment decreased rottage in Kufri Pukhraj,Kufri FryoM, Kufri Frysona, MS/8 1148, Kufri Neelkanth, Kufri Chipsona 1 and Kufri Sindhuri. Results indicated thattubers of Lady Rosetta and Kufri Sindhuri could be storable at ambient temperature compared to other genotypes. ABAtreatment of tubers may improve tuber storage under ambient conditions in potato.
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