Minimization of Frost Injury in Mango cv. Sindhri via Different Irrigation Levels

Abstract

Mango is one of the most important fruit crops all over the world. It is the second-most significant fruit crop in Pakistan. The standardization of irrigation needs for the mango crop is one of the primary and most crucial factors for reducing frost injury, improving fruit quality, and yield, which must be taken into account. Low moisture content in the soil increases the likelihood of frost injury, so it is essential to maintain an ideal amount of moisture to mitigate such damage. To conserve valuable irrigation water, apply water only during critical stages. Research was conducted at the Experimental Orchard of Makhdom Ahmad Aalam Anwar, Mohsin Abad, during 2020-21 and 2021-22. Mango trees of the Sindhri variety were of uniform age (20 years) for this experiment. The experimental layout was a randomized complete block design. Irrigation was applied to mango trees at three different moisture levels (35-40%, 30-35%, and 25-30%) that were measured and maintained via the HH2 Moisture Meter (Version 2.3). The mango trees showed good results at the 35-40% soil moisture level compared with the rest of the treatments, especially in terms of vegetative growth. Fruit size, yield per tree, and total soluble solids of the fruit were maximum in mango trees irrigated at 35-40%. Minimum frost incidence (21%) was observed at the 35-40% moisture level, while maximal damage by frost (37%) was noticed in plants subjected to the 25-30% moisture level. This study concludes that moisture level is more important for enhancing mango yield. It will be more supportive for future work on the impact of frost injury in the mango crop.