TY - JOUR
T1 - SEED PRIMING AND EXOGENOUS APPLICATION OF SALICYLIC ACID ENHANCE GROWTH AND PRODUCTIVITY OF OKRA (Abelmoschus esculentus L.) BY REGULATING PHOTOSYNTHETIC ATTRIBUTES
AU - Rhaman, Mohammad Saidur
AU - Rauf, Farjana
AU - Tania, Shaila Shermin
AU - Karim, Md Masudul
AU - Sagar, Ashaduzzaman
AU - Robin, Arif Hasan Khan
AU - Abdel Latef, Arafat Abdel Hamed
AU - Murata, Yoshiyuki
N1 - Publisher Copyright:
© 2021, Editorial board of Journal of Experimental Biology and Agricultural Sciences. All rights reserved.
PY - 2021/12
Y1 - 2021/12
N2 - Low and uneven germination is a serious problem for the successful production of okra seedlings. Priming of seeds as well as supplementation of different plant growth regulators exhibited better response in successful seedling production which eventually results in higher yield. Therefore, the present study was conducted to evaluate the effects of seed priming and exogenous application of salicylic acid (SA) on okra seed germination and plant development. The okra seeds were primed by 1 mM and 2 mM of SA for 60 minutes whereas the seeds were washed several times with distilled water for the control treatment. Similar doses of SA have been exogenously sprayed to the 12 days okra seedlings for 4 days. The results of the study revealed that seed priming with SA enhanced germination percentage (GP), increased coleoptile length and weight, shoot and root length, and seed vigor index (SVI). Similarly, exogenous application of 1 mM SA increased relative water content (RWC), contents of chlorophyll a, chlorophyll b, total chlorophyll while a higher dose of SA (2 mM) degraded the leaf pigments. Supplementation of SA altered photosynthetic attributes, net photosynthetic (Pn) and transpiration rate (Tr), stomatal conductance (Gs), and water use efficiency (WUE). Moreover, SA treatment reduced the time duration of flower bud initiation and days to first flowering and enhanced the yield per plant. The results of this study indicated that seed priming and exogenous application of SA enhanced germination and okra productivity by regulating RWC and photosynthetic attributes where 1 mM SA is more effective compared to 2 mM SA.
AB - Low and uneven germination is a serious problem for the successful production of okra seedlings. Priming of seeds as well as supplementation of different plant growth regulators exhibited better response in successful seedling production which eventually results in higher yield. Therefore, the present study was conducted to evaluate the effects of seed priming and exogenous application of salicylic acid (SA) on okra seed germination and plant development. The okra seeds were primed by 1 mM and 2 mM of SA for 60 minutes whereas the seeds were washed several times with distilled water for the control treatment. Similar doses of SA have been exogenously sprayed to the 12 days okra seedlings for 4 days. The results of the study revealed that seed priming with SA enhanced germination percentage (GP), increased coleoptile length and weight, shoot and root length, and seed vigor index (SVI). Similarly, exogenous application of 1 mM SA increased relative water content (RWC), contents of chlorophyll a, chlorophyll b, total chlorophyll while a higher dose of SA (2 mM) degraded the leaf pigments. Supplementation of SA altered photosynthetic attributes, net photosynthetic (Pn) and transpiration rate (Tr), stomatal conductance (Gs), and water use efficiency (WUE). Moreover, SA treatment reduced the time duration of flower bud initiation and days to first flowering and enhanced the yield per plant. The results of this study indicated that seed priming and exogenous application of SA enhanced germination and okra productivity by regulating RWC and photosynthetic attributes where 1 mM SA is more effective compared to 2 mM SA.
KW - Chlorophyll contents
KW - Hormonal priming
KW - Photosynthesis
KW - Salicylic acid
KW - Seed priming
UR - http://www.scopus.com/inward/record.url?scp=85124369169&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85124369169&partnerID=8YFLogxK
U2 - 10.18006/2021.9(6).759.769
DO - 10.18006/2021.9(6).759.769
M3 - Article
AN - SCOPUS:85124369169
VL - 9
SP - 759
EP - 769
JO - Journal of Experimental Biology and Agricultural Sciences
JF - Journal of Experimental Biology and Agricultural Sciences
SN - 2320-8694
IS - 6
ER -