Physio-morphological changes and fruit yield traits of Cavendish banana under organic farming management in the North region of Thailand
Cavendish banana 'Kluai Hom Thong' (Musa sapientum AAA group 'Kluai Hom Thong') is the most popular fruit in Thailand, that is grown in many regions for local supply (113.7 M t or 96.93%) and export to China and Japan (3.7 M t or 3.17%). However, premium quality of banana, especially from organic certified farms, is the minimal requirement for export. The aim of this research was to develop organic fertilizer practices for the production of premium quality banana. The study was conducted in three farmer fields at Rong Kwang district, Phrae province, northern Thailand. The physiological, morphological characters and fruit yield of banana grown under biofertilizer treatment (farm yard manure (FYM) with arbuscular mycorrhiza fungi (AMF-plant growth promoting fungi)) and without biofertilizer were measured. Total chlorophyll (TC) content, maximum quantum yield of PSII (Fv/Fm) and photon yield of PSII (ΦPSII) in plants grown under without biofertilizer of plot I (TS) were lower than those in biofertilizer treated plants by 8.04, 24.35 and 21.38%, respectively, resulting in declined net photosynthetic rate (Pn) (49.58%) and banana finger weight (38.48%). In contrast, the physiological, morphological characters and yield of banana were maintained in plot II (GF) and plot III (SE). Pn was significantly dropped in plots without treatment and acted as a sensitivity indicator for the lack of biofertilizer. In conclusion, optimized organic farming system of banana production can be adopted as precision farming system in Thailand based on the physiological and morphological adaptation without yield loss.
Theerawitaya, C., Tisarum, R., Samphumphung, T., Kirdmanee, C. and Cha-um, S. (2018). Physio-morphological changes and fruit yield traits of Cavendish banana under organic farming management in the North region of Thailand. Acta Hortic. 1206, 105-112
chlorophyll fluorescence, fruit weight, growth, net photosynthetic rate, plant growth promoting fungi