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1. EGMS lines are multiplied at appropriate locations and seasons where stable fertility inducing environmental (photoperiod /temperature) conditions prevail for a continuous period of 30 days.
2. Let us take the example of TGMS lines which turn to fertility at lower temperature and the most ideal temperature regime to induce higher fertility is 27/210C.
3 In this case, the TGMS line has to be planted in such a way that the sensitive stage (5-20 days after planting) occurs in the middle of the fertility inducing phase.
4. The seed yields in EGMS multiplication plots may vary depending upon the critical fertility inducing factors and their duration.
5.If the conditions are highly favourable, seed yields of 4.0 – 4.5 t/ha could be obtained as experienced in China with the PGMS line N 5088 S and 7001 S
Agro Techniques for Hybrid Rice Cultivation and Seed Production - 2005, DRR Training Manual