Desserts were added to some varieties in 1991, and juice drinks were added in 1994.
One seed company, Pioneer Hi-Bred International, finally stopped research on new varieties in 1999 because of the dismal prospects.
Tayto, a popular Irish brand, was the first to recognise the seemingly unending opportunities to douse crisps in flavour when it introduced cheese and onion, barbecue, and salt and vinegar varieties in 1957.
Maize cultivar numbers increased from 116 varieties in 1994 to around 320 varieties in 2011.
Higher IWUE was obtained with drip compared to SEP for all varieties in 2012.
Introduction of non-japonica varieties in early eleventh century CE China is historically documented (below).
In Austria, there was an overall increase from a total of 19 varieties in 1995 to around 75 in recent years (Figure 3b).
This confusion, resulting from approximately 165 Bt. varieties in 2007, actually helped the spread of the use of spurious seeds (Gruère & Sengupta, 2011).
Since the commercial introduction of GM varieties in 1996, the global numbers of hectares sown to GM crops has increased [10].
The number of commercially offered GM maize cultivars in Spain increased from only two varieties in 1998 to 108 by the end of 2011 (representing 42% of the total 255 cultivars on offer) (Figure 1).
By Greco-Roman times popular food plants of today, including grapes, apples, figs, and olives, were being listed as named varieties in early manuscripts.
