Kan suksa ayu kep kieo thi mosom khong thualison phan NC 7.
1989
Tagsina Sansayavichai | Anont Watayanonta | Pratuengsri Sinchaisri
Studies were conducted in the rainy and dry seasons of 1988 to determine an appropriate harvesting date for a new virginia type groundnut cultivar NC 7. The cultivar was grown at the Khon Kaen Field Crops Research Center, Tha Phara and the development of flowers and pods were monitored. Yields at differnt harvesting dates were also determined. Results indicated that flowering began at 29 days after emergence (DAE). There were three flushes of flowers, blooming at 30-50 DAE, 50-70 DAE and 90-110 DAE. Only 13 % of flowers turned to pods. Pods began to mature at 91 DAE, and the number of mature pods reached a maximum at 105 DAE. In the dry season, no yield difference was observed when harvesting at 100-115 DAE, but further delay resulted in a high percentage of rotten pods. In the rainy season, harvesting at 105-125 DAE gave no yield difference, but the highest percentage of sound mature kernels was obtained when the crop was harvested at 115 DAE. It was concluded that appropriate harvesting date for this groundnut cultivar is 105-115 DAE.
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