5 research outputs found
Mechanical Damage to Chickpea Seeds as Affected by Npk Fertilization
The aim of research was to
determine the effect of nitrogen (N),
phosphorus (P) and potassium (K) fertilizers
onthe some physical properties and
mechanical damage to chickpea seeds under
impact. The martial for tests was from a
field experiment with varied levels
fertilization with nitrogen (0 and 50 kg/ha,
N), phosphorus (0 and 100 kg/ha, P2O5) and
potassium (0 and 100 kg/ha, K2O). The
variation of the mechanical damage was
analyzed depending on the mode of varied
fertilization, seed moisture content and
impact energy. It was found that the
chickpea seeds were bigger with NPK
supply. The effects of phosphorus and
potassium fertilizers rates on the mechanical
damage to chickpea seeds was significant at
1% probability level (P<0.01) and increased
its hardness and resilience therefore caused
the better resistance to impact damage.
Potassium fertilization ratehad the most
influence and phosphorus fertilization rate
had the least. The effect of the nitrogen
fertilizer rate was not significant (P>0.05).
Harvesting chickpea seeds at higher
moisture content and lower impact energy
should give lower breakage when NPK is
supplied, as well as when no NPK is
supplied
Mechanical damage to chickpea seeds as affected by NPK fertilization
The aim of research was to
determine the effect of nitrogen (N),
phosphorus (P) and potassium (K) fertilizers
onthe some physical properties and
mechanical damage to chickpea seeds under
impact. The martial for tests was from a
field experiment with varied levels
fertilization with nitrogen (0 and 50 kg/ha,
N), phosphorus (0 and 100 kg/ha, P2O5) and
potassium (0 and 100 kg/ha, K2O). The
variation of the mechanical damage was
analyzed depending on the mode of varied
fertilization, seed moisture content and
impact energy. It was found that the
chickpea seeds were bigger with NPK
supply. The effects of phosphorus and
potassium fertilizers rates on the mechanical
damage to chickpea seeds was significant at
1% probability level (P<0.01) and increased
its hardness and resilience therefore caused
the better resistance to impact damage.
Potassium fertilization ratehad the most
influence and phosphorus fertilization rate
had the least. The effect of the nitrogen
fertilizer rate was not significant (P>0.05).
Harvesting chickpea seeds at higher
moisture content and lower impact energy
should give lower breakage when NPK is
supplied, as well as when no NPK is
supplied
Evaluation of Germination and Antioxidant Activity in GA3-Primed Deteriorated Wheat Seed
Seed priming with hormones does not alleviate induced oxidative stress in maize seedlings subjected to salt stress
Seed priming with hormones has been an efficient method for increasing seed vigor as well as seedling growth under stressful conditions. These responses have in the past been attributed to the activation of antioxidant systems in a range of crops. The results described in this work show that hormonal priming with methyl jasmonate, salicylic acid or CEPA (chloroethylphosphonic acid), an ethylene (ET) releaser, does not induce the antioxidant activity of superoxide dismutase, catalase, ascorbate peroxidase or glutathione reductase in maize seedlings subjected to salt stress. The enhanced biomass of maize seedlings under salt stress that was observed only from ET priming indicates that the stress tolerance in maize from ethylene priming is a fundamental process for stress tolerance acquisition, which is explained, however, by other biochemical mechanisms but not by changes in the antioxidant system