Articles
EFFECT OF ROOTSTOCKS ON GROWTH OF PEACHES IN THE HIGHLAND OF NORTHERN THAILAND
Article number
872_45
Pages
327 – 332
Language
English
Abstract
Peach rootstock in Thailand has relied on only local clones introduced from Southern China.
Local roostocks have expressed some degree of incompatibility with peach scions at older ages.
Presently, new improved low chilling rootstocks being used elsewhere could adapt to Thailands climate.
The objective was to evaluate the influence of local rootstocks: Khunwang, White Angkhang and Red Angkhang and imported rootstocks: Coastal Peach, Flordaguard, In Je Taur, Kuu Taur, Okinawa and Premier on growth of TropicBeauty, TX2293-3 and TXW1491-1 as scions.
Trees were planted at the Angkhang Royal Agricultural Station (19°50-19°57N; 99°01-99°06E; 1,200 m a.s.l.) in 2002. Growth evaluation, scion height, number of flower and leaf buds, pruned branch weight, trunk cross sectional area, mineral concentration (N, P, K) and yield were measured along with chemical properties of soil (pH and mineral concentration) when trees were three and four years old.
Significant differences were observed in scion height, branch weight, trunk size, number of flower buds and yield.
Scion height was the greatest on Coastal Peach (2.22 m.); while, branch weight, trunk size, number of flower buds and yield were the highest on Okinawa (1.45 kg, 59.56 cm2, 17 buds and 7.99 kg, respectively). There was no incompatibility observed among rootstock and scion cultivars in early ages.
In summary, Okinawa had the highest growth and good scion performance as compared to other rootstocks.
Local roostocks have expressed some degree of incompatibility with peach scions at older ages.
Presently, new improved low chilling rootstocks being used elsewhere could adapt to Thailands climate.
The objective was to evaluate the influence of local rootstocks: Khunwang, White Angkhang and Red Angkhang and imported rootstocks: Coastal Peach, Flordaguard, In Je Taur, Kuu Taur, Okinawa and Premier on growth of TropicBeauty, TX2293-3 and TXW1491-1 as scions.
Trees were planted at the Angkhang Royal Agricultural Station (19°50-19°57N; 99°01-99°06E; 1,200 m a.s.l.) in 2002. Growth evaluation, scion height, number of flower and leaf buds, pruned branch weight, trunk cross sectional area, mineral concentration (N, P, K) and yield were measured along with chemical properties of soil (pH and mineral concentration) when trees were three and four years old.
Significant differences were observed in scion height, branch weight, trunk size, number of flower buds and yield.
Scion height was the greatest on Coastal Peach (2.22 m.); while, branch weight, trunk size, number of flower buds and yield were the highest on Okinawa (1.45 kg, 59.56 cm2, 17 buds and 7.99 kg, respectively). There was no incompatibility observed among rootstock and scion cultivars in early ages.
In summary, Okinawa had the highest growth and good scion performance as compared to other rootstocks.
Authors
D. Wongtanet, U. Boonprakob
Keywords
Prunus persica (L.) Batch, compatibility, plant nutrition
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