| Table-3: Period for full and partial maturity of certain weeds when they can be harvested without loss of their seed vitality, (Gupta 1984) | |||||||
| Weeds species | Period of full maturity after flowering (Days) | Minimum maturity period after flowering (Days) | |||||
| Anagallis arvensis | 25 | 15 | |||||
| Argemone mexicana | 50 | 35 | |||||
| Asphodelus tenuifolius | 40 | 15 | |||||
| Lathyrus aphaca | 35 | 15 | |||||
| Melilotus indica | 35 | 20 | |||||
| Solanum nigrum | 45 | 15 | |||||
| Vicia hirsuta | 30 | 15 | |||||