HRMN-99 vs Anna vs Dorsett Golden: Best Low-Chilling Apple Varieties for Hot Climates in India

For decades, Indian apples meant cold Himalayan orchards in Jammu & Kashmir, Himachal Pradesh and Uttarakhand. Today, growers in the plains, lower hills and even South India are asking a practical question: which apple tree for hot climate conditions will actually flower, set fruit and deliver acceptable quality? Three names dominate that conversation: HRMN-99, Anna and Dorsett Golden. This guide compares these hot climate apple varieties in India using published evaluation data, so you can match a variety to your site rather than to marketing claims.

Apples are temperate trees. In winter they go dormant and need a period of cold, counted as chilling hours (generally hours below about 7°C), before buds break evenly. Most conventional commercial cultivars need roughly 1,000 to 1,500 chilling hours, which is why traditional orchards sit at about 5,000 to 8,500 feet above sea level. Without enough chill, flowering becomes irregular, fruit set declines and quality suffers.

A low chilling apple variety completes this cycle with far less cold. Internationally developed cultivars such as Anna, Dorsett Golden, Tropic Sweet and Ein Shemer were bred for mild winters, and many were introduced into India for evaluation from the early 1990s by institutions such as Dr YS Parmar University of Horticulture and Forestry.

Large parts of India never accumulate meaningful winter chill, while rising temperatures and shifting snowlines are pushing traditional orchards higher. An apple variety for hot climate conditions therefore serves farmers in non-traditional regions seeking diversification, and home gardeners wanting a summer apple plant they can genuinely harvest. Early-season fruit can also reach markets when hill apples are scarce.

Between 2014 and 2019, National Innovation Foundation (NIF) multi-location trials placed over 20,000 HRMN-99 saplings across about 30 states, with fruit set reported from 23 states and Union Territories, including Kerala, Karnataka, Telangana, Andhra Pradesh and Puducherry.

The HRMN 99 apple variety began as a chance seedling noticed in 1999 in Paniala, Bilaspur (Himachal Pradesh), a village around 1,800 feet above sea level where summers reach 40 to 45°C. Padma Shri awardee Dr Hariman Sharma multiplied it through grafting, and NIF later supported its evaluation and registration under the PPV&FR Act.

Limitations to weigh: shelf life is short (about 8 to 12 days at room temperature), fruiting usually starts around the third year, yields in 3 to 8-year-old trees ranged widely from about 5 to 100 kg per plant, and results depend heavily on soil management, pruning and irrigation.

The Anna apple variety is one of the best-known low-chill cultivars worldwide. Its yellow skin carries a red blush, and the flesh is crisp, juicy and sweet-tart. In the NIF morphological study, Anna recorded the highest average fruit weight (136 g), slightly above HRMN-99 (129.4 g). SSR DNA fingerprinting placed Anna and HRMN-99 in the same cluster, showing a genetic relationship while confirming HRMN-99 remains distinct.

Anna also has an important orchard role: it is the recommended pollinator for Dorsett Golden, making it valuable in mixed plantings.

The Dorsett Golden apple has yellow skin with a slight red tinge and a sweet-sour to tart flavour. Its fruits were comparatively small in the NIF study (about 67.6 g, width 5.06 cm). According to TAAS, it requires cross-pollination, with Anna as the pollinator. On the positive side, it produced the most fruits per plant and showed stronger tree morphology in the North-western plains trial. Genetically, it formed a separate cluster from HRMN-99 and Anna.

Kumar et al. (2023) compared the three cultivars in the North-western plains of Uttar Pradesh across 2019-20 and 2020-21. Flowering began in mid-February, with full bloom in late February to early March, and the overlapping windows support mixed planting.

Fruit weights here were lower than in other HRMN-99 evaluations (150 to 178 g at IARI Shimla and ICAR-NEH Manipur), showing how strongly tree age, location and management influence outcomes. Claims of HRMN-99 superiority from NIF and GSBTM studies relate mainly to distinctiveness and fruit quality, not to every productivity measure.

Gardeners in Kerala and other southern states often start with an all weather apple plant such as HRMN-99, then add Anna once the first tree establishes. Choose a sunny, well-drained site and consult your nearest Krishi Vigyan Kendra.

Apple seeds do not reproduce the parent variety, so the qualities of HRMN-99 survive only through grafting, traditionally on crab apple seedling rootstock. The TAAS publication warns that fake HRMN-99 plants are being sold, and recommends buying from accountable sellers with a proper bill.

• ✅ Grafted plants fruit earlier and stay true to type.
• ✅ A mature graft union handles transit and transplanting better.
• ✅ Authentic stock protects your time, space and investment.

Greens of Kerala supplies grafted HRMN-99 plants around six months post-grafting, shipped in sturdy wooden boxes for safer delivery.

HRMN-99, Anna and Dorsett Golden each earn a place among hot climate apple varieties in India. HRMN-99 stands out for minimal chilling and self-pollination, Anna for crisp fruit and pollination support, and Dorsett Golden for fruit numbers when paired correctly. If the HRMN 99 apple plant hot climate variety suits your goals.