Claim · model-written summary
Chill units for apple in the high hill temperate wet zone of Himachal Pradesh showed a decreasing trend of 11.40 chill units per year over 1986 to 2015.
- Taxon
- apple
Malus domesticae0 - Outcome
- chill unitse1
- Direction
- decreasing trende1
- Value
- 11.40 chill units per yeare1
- Setting
- high hill temperate wet zone of Himachal Pradeshe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“in high hill temperate wet zone of Himachal Pradesh to assess chilling trends and its effect on apple productivity”
e1“Results indicated a decreasing trend of the order of 11.40 chill units per year”
Title
Hukam Chand; SC Verma; SK Bhardwaj; et al. Journal of Hill Agriculture 2015. doi:10.5958/2230-7338.2015.00046.4
Other claims from this paper (6)
- Observation Chill units declined across the three decades 1986-1995, 1996-2005 and 2006-2015, by 119.30 CU per decade.
- Observation Among winter months the maximum decrease in chill units, 6.24 CU per year, was observed in November.
- Observation Trend analysis of the last five years 2011-2015 showed a decrease of 2.92 chill units per year.
- Observation Apple productivity in Shimla district over the last twenty five years (1988-2014) showed an increasing trend.
- Observation The authors suggest climatic conditions might become unfavorable for apple cultivation in coming years given the decreasing chill unit accumulation.
- Observation The authors suggest this may lead to a shift of the apple belt to higher altitude in the region to accumulate the required chill units.