Comparative Effects of Four Plant Growth Regulators on Yield and Field Performance of Crocus sativus L.

The effects of four plant growth regulators on Crocus sativus L. (saffron) yield and performance were studied in two consecutive years under field conditions. Saffron corms immersed solutions gibberellic acid (GA3), salicylic (SA), paclobutrazol (PBZ), chlormequat chloride (CCC), distilled water (hydroprime), dry as the control. Results showed that among different treatments, plants primed with GA3 500 ?M had highest flower fresh weight stigma weight. In contrast, 1000 CCC 100 PBZ lowest Furthermore, SA 1400 leaf numbers, weight, area index (LAI). Plants treated induced narrow but longest leaves, while those widest ones. It was also demonstrated application can produce shorter leaves. greatest numbers daughter obtained SA. Both reported to have no impacts corm produced larger heavier corms. results revealed priming saffron then improved yield.