Table 2: Isoflavone content1 (mg/g) in sound seeds of 14 soybean varieties planted on different dates in the same crop year at SUT Farm.

VarietyPlanting date
19 December 200926 December 200915 January 2010

Chiangmai 2
Chiangmai 5
Chiangmai 60
Chakkrabhandhu 1 ND
KKU 35 ND
Nakhon Sawan 1
SJ 1
SJ 2
SJ 4
SJ 5
Srisamrong 1
Sukhothai 1
Sukhothai 2
Sukhothai 3

Mean ± SD

Each soybean sample was extracted and assayed in triplicate ( ). Data represent mean ± standard deviation. compared to 19 December 2009. compared to 26 December 2009. ND: not determined due to lack of soybean seed samples. 1Isoflavone content was the summation of daidzin and genistin contents.