Influence of GA3 on Yield and Quality of Indian Mustard

Foliar application effect of gibberellic acid on growth, yield components and some qualitative characteristics of linseed (Linium usitatissimum L.)

“…Siddiqui et al, (2014) reported that plant growth regulators (PGRs) have a significant role in enhancing yield in linseed. Saini et al, (2021) confirm that seed yield per plant was influences by foliar sprayed of various concentration of GA 3 . Faizanullah and Noshen, (2010) found that the growth regulators increased the seed oil content in flax plant.…”

“…While the role of spraying GA 3 on some growth characteristics (table 3.2) may be due to the role of gibberellin which play vital role in regulating developmental processes within plant bodies and may be promotes stem elongation by increasing the physiological levels of auxin, either by increasing auxin production or decreasing the destruction of auxin (Ullah et al, 2017), these results were in concord with those found by (Silva et al, 2005) and (Rastogi et al, 2013). The increases in yield component values may be due to the role of foliar sprayed of GA 3 in enhance the number of seeds per silique, seed size and weight as mentioned by Saini et al, (2021), Copur, et al (2019, Kaya (2015) and Rastogi et al, (2013). The significant effect of interaction between cultivars and GA 3 spraying as shown in table (3.3) is harmony with Ayala-Silva et al, (2005), they stated that gibberellic acid increased stem height with 250 mg L -1 having a greater effect than 125 mg L -1 for both cultivars and the application of GA 3 at 125 mg L -1 resulted in 10% increase in stem higher concentration, 250 mg L -1 , resulted in an seed index may be as a result of the carbohydrate sink capacity enlarged by growth stimulating photosynthetic activity and carbohydrate production These results were in harmony with the finding of Bora and Sarma (2006) They stated that GA 3 application produced maximum no.…”

“…(Bora and Sarma,2006) illustrated that gibberellin helps in cell growth of stem, leaves and other aerial parts by causing cell elongation, and increase in intermodal length, they mentioned that a higher concentration of gibberellins increases plant growth. Saini et al, (2021) indicated that gibberellic acid is a phytohormone which is necessary in small quantity at low concentration to enhance plant growth activities and development to increases dry weight and yield in Indian mustard. Mckenzie and Deyholos, (2011) reported that treatment of GA 3 causes stem elongation, expansion and proliferation and cell wall thickening in bast fiber of linseed, gibberellin helps in cell growth of stem, leaves and other aerial parts by causing cell elongation, and increase in intermodal length.…”