In the phonological development submodel, the PDT from sowing date to germination, seedling, flowering, fruit setting and harvest were quantified as 4, 9, 45, 56 and 102 days, respectively.
The aphid size at the cotton seedling, budding and boll setting stages was not significantly different in Nanjing, 1999. But in the boll opening stage the aphid size became smaller.
1999年江苏南京在棉花苗、蕾和铃期，棉蚜体型大小无显著差异，但到吐絮期后则显著变小。
3
Tomatoes inseedling stage have no correlation with those in blooming and setting stage on low light tolerance.