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之豇28—2由于具有熟期早、品质好、肉厚籽少、产量高、适应性广等特点,目前全国各地常年种植面积在6～7万公顷以上,全国每年繁种量在150万千克以上。但该品种1979年育成至今已有16年,应用时间较长,繁种单位技术和管理水平不一,品种退化十分严重。据嵊州市农科所调查,表现为豆荚变细(0.79厘米)、变短(56.2厘米)、单株结
The cowpea 28-2 has the characteristics of early ripening, good quality, low fleshy seeds, high yield and wide adaptability. At present, perennial acreage in all parts of the country is between 60,000 and 70,000 hectares, and annual national annual production is 1.5 million Kg or more. However, the breed has been bred for 16 years since its establishment in 1979 and has been applied for a long time. The technology and management level of breed breed units are different, and the variety degeneration is very serious. According to the investigation of Shengzhou Academy of Agricultural Sciences, the performance of pods thinner (0.79 cm), shorter (56.2 cm), single plant knot