Onion-An ancient crop and modern practices - Bok av Khalid Mahmud Khokhar - Häftad
A large number of cultural practices and environmental conditions affect bulbing, flowering and seed development in onion. The main factors affecting seed yields are high temperature and water stress during pollination and seed development. The quality of seed is not good enough and most of the times there have been problems related to germination capacity of the seeds and true to typeness. The problem is further exacerbated by the short shelf life of onion seed (one year under favorable condition)...
