Yield and quality of 12 yard-long bean (Vigna unguiculata var. sesquipedalis) cultivars in southern Thailand
2001
Kongkiatngam, P. (Walaikak Univ., Nakornsithammarat 8016 (Thailand). Inst. of Agricultural Technology))
Yard-long bean is one of the most important vegetable crops in Thailand and Southeast Asia. It is grown in all parts of the country. Although this crop is believed to originate from tropical Africa, it has been grown in Thailand for centuries. At present, there are several cultivars of yard-long bean from both public institutions and private companies being used by farmers. It would be beneficial to farmers, extension agents and researchers to obtain information on the performance of these cultivars in southern Thailand. The study was conducted at the Crop Research Center of Walaikak Univ. in June 1999. Data on seed coat color, pod number, pod length, pod color and pod weight were gathered. Seed coat color varied from white, red and black. Pod color of all cultivars, except Pitchit 1 was pale green. The cv. Pitchit 1 had dark-green pods which are not favorable in the Thai market. The number of days to first harvest (DFH) varied from 41-53. The cv. Pitchit 1 was the most early cultivar (41 days) while cv. Kheuwdok 4 was the latest (53 days). Total pod yield of these cultivars was not significantly different.However, cv. Nuae and 8092 showed the highest yield potential. Cultivar Pitchit 1 gave the longest pods (41.8 cm) whereas cv. Suranaree (southern pea) yielded the shortest pods (9.9 cm)
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