Table 2.

Number of viable and sterile pollen grains from cowpea IT86D-1010 plants grown in a greenhouse, treated two times with different dosages of TFMSA

TFMSA (concentration mg/l)	Number of plants	Total pollen grains	Number of viable pollen grains	Number of sterile pollen grains	Overall % sterile	Significant difference from control
Control	1	298	239	59	19
	2	221	173	48
62.5	1	200	95	105	63	**
	2	184	49	135
125	1	279	115	164	59	**
	2	230	0	230
	3	229	188	41
250	1	194	0	194	76	**
	2	265	147	118
	3	163	1	162
500	1	191	0	191	68	**
	2	387	63	324
	3	268	211	57
1000	1	205	1	204	99	**
	2	192	1	191
	3	214	4	210

One flower from each plant was collected and two anthers from each flower were dissected. Viable and sterile pollens were counted as total pollen number of two anthers

**Significantly different from the control at 1%, Chi-squared test