Growth of Banana “Kluai Hom Thong” via applying paclobutrazol on different periods.

Abstract

The growth of Musa (AAA group) “Kluai Hom Thong” was studied via applying paclobutrazol concentration 500 mg a.i./plant on different periods was 2, 3 and 4 months after planting compared to water (control) in 2 months after planting. The experiment was conducted in RCBD (Randomized Complete Block Design) with 4 treatments and 10 replications at Pakchong Research Station, Pakchong, Nakhon Ratchasima province.  The results showed that pseudostem height decreased after 1 month applying paclobutrazol, the 2 months after planting pseudostem height shorter than control 35.6 and 38.1 cm. respectively. The circumferences were different on 2^nd month, at 7^th month circumferences showrd 52.0, 49.0, 48.8 and 48.2 cm. respectively. On 6^th month, The control and 2, 3, 4 months after planting showed average Leaf blade spacing was 8.0, 7.5, 7.5 and 7.4 cm, respectively. Petioles length was shorter than control. Optimal time for applying paclobutrazol at 2 months after planting.