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 หัวเรื่อง:การผลิตและการตลาดถั่วลิสงในภาคใต้ ปีการเพาะปลูก 2529/30 ผู้เขียน: Chalong Maneekul, Jaruiy Petchrat, Suchanya Boonvano, Rattana Sungsithisawas สื่อสิ่งพิมพ์:pdf Abstract This study aims to acquire knowledge on production situation and technologies employed, the potentials and constraints in production and marketion of groundnuts so as to lay a foundation for research and development of groundnuts in the South. Data were collected from producers and middlemen by face to face interview with the help of structured and nonstructured questionnaires in selected Amphoes of Chumphon, Surat Thani Nakhon Si Thammarat, Phatthalung and Songkhla province. Simple random sampling technique was employed to select 238 growers. Sixteen middlemen, including the exporters in Narathiwat province were selected for the interview by purposive sampling. Findings are as follows : In the study area, a groundnut grower allocated an average area of 2.26 rai/household and the average production 242 kg. per rai in the study area was higher than the average of the south. About 92.3% of the product was marketed, while 5.3% was used for home consumption and 2.4% for seed. Tha farm price of dried unshelled groundnut was about 6.38 baht/kg and grower could benefit 2.18 baht/kg. Green groundnut was sold at 3.20 baht/kg and grower could benefit 0.47 baht/kg. The main groundnut markets in Southern Thailand were 1) Hua-it Agricultural Central market, at Amphone Muang Nakhon Si Thammarat Province. 2) Phatthalung market, Phatthalung province 3) Hat Yai market, Songkhla province. 4) Su-ngikolok market, Narathiwat Province. Southern region produced only 9,301 tons of groundnut or 39% of regional demand (23,987 tons/year) and 61% of groundnut required by the region was imported from other groundnut growing areas of the country. Given on the present farming system, water supply, seed supply, transportation, and marketing system found that the potential area for groundnut development should be the area of paddy land along the high way from Amphoe Rattaphum Songkhla province to Amphoe Muang Nakhon Si Thammarat. For further groundnut research, it is necessary to conduct research relating to technology for groundnut production appropriate in the area mentioned above, the quality improvement should be strongly emphasized. |
 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Responses of Bambara Groundnut Seed to Accelerated Aging) ผู้เขียน:Vichai Wongvarodom, Suteera Naulkong สื่อสิ่งพิมพ์:pdf AbstractBambara groundnut seeds of Songkhla 1 and landrace variety were subjected to accelerated aging at temperatures of 40, 43, 46, 49, 52, and 55?C for 48, 72, and 96 hours in order to determine the response of variety and seed quality to accelerated aging conditions. The non-aged and aged seeds were subjected to tests of their quality including moisture content, standard germination, speed of germination, and seedling growth rate. Results indicated that responses of bambara groundnut seeds to accelerated aging differed with varieties and seed quality characteristics. The Songkhla 1 seed was more sensitive to accelerated aging than landrace variety. High quality seeds of both varieties with germination of 86.50- 88.00% had a reduction of viability and vigor after accelerated aging at 40?C for 96 hours and at 43?C for 48-72 hours with germination of 75.50-62.25%. These aging regimes provided seed vigor separation between varieties with germination differences of about 10% while a greater separation (around 20%) occurred after aging at 46?C for 48 hours. Germination and speed of germination index showed a greater response to accelerated aging. Seedling growth rate in terms of shoot length, root length, and seedling dry weight could not be used to evaluate the deterioration of the acceleratingly aged seed. |