TY - JOUR
T1 - Growth improvement in spring maize through exogenous application of ascorbic acid, salicylic acid and hydrogen peroxide
AU - Ahmad, Ijaz
AU - Basra, Shahzad M.A.
AU - Afzal, Irfan
AU - Farooq, M.
AU - Wahid, Abdul
PY - 2013
Y1 - 2013
N2 - Early plantation of spring maize crop is practiced to avoid heat stress during seed set but low temperature causes poor and erratic stand establishment. Foliar application of antioxidants, plant growth regulators and osmoprotectant can improve early seedling growth. Foliar spray of ascorbic acid (AsA), salicylic acid (SA) and hydrogen peroxide (H2O2) @ 20 and 40mg L-1 was applied on spring maize seedlings at 3rd leaf stage. Foliar application improved shoot and root lengths, which was associated with higher superoxide dismutase (SOD), chlorophyll and nutrients contents. A positive correlation was observed between shoot length and shoot N, P and K contents, leaf SOD and chlorophyll contents, while root length was positively correlated with root N, P and K contents. It is concluded that early seedling establishment can be improved by exogenous application of AsA, SA and H2O2 owing to enhanced antioxidants defense system and nutrient homeostasis.
AB - Early plantation of spring maize crop is practiced to avoid heat stress during seed set but low temperature causes poor and erratic stand establishment. Foliar application of antioxidants, plant growth regulators and osmoprotectant can improve early seedling growth. Foliar spray of ascorbic acid (AsA), salicylic acid (SA) and hydrogen peroxide (H2O2) @ 20 and 40mg L-1 was applied on spring maize seedlings at 3rd leaf stage. Foliar application improved shoot and root lengths, which was associated with higher superoxide dismutase (SOD), chlorophyll and nutrients contents. A positive correlation was observed between shoot length and shoot N, P and K contents, leaf SOD and chlorophyll contents, while root length was positively correlated with root N, P and K contents. It is concluded that early seedling establishment can be improved by exogenous application of AsA, SA and H2O2 owing to enhanced antioxidants defense system and nutrient homeostasis.
KW - Foliar spray
KW - Maize
KW - Nutrients
KW - Superoxide dismutase
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M3 - Article
AN - SCOPUS:84873023313
SN - 1560-8530
VL - 15
SP - 95
EP - 100
JO - International Journal of Agriculture and Biology
JF - International Journal of Agriculture and Biology
IS - 1
ER -