Growth and Yield Attributes of Mustard as Influenced by Mustard – Based Vegetable Intercropping Systems

The study was conducted at Agricultural Research Station, Adilabad, Professor Jayashankar Telangana State Agricultural University (PJTSAU), Rajendranagar, Hyderabad, from November, 2022 to March, 2023 to identify the best intercropping system in mustard intercropped with different root vegetable crops. The treatments include, T1: Mustard sole crop; T2: Radish sole crop; T3: Beetroot sole crop; T4: Carrot sole crop; T5: Potato sole crop; T6: Mustard + Radish (2:2); T7: Mustard + Beetroot (2:2); T8: Mustard + Carrot (2:2); T9: Mustard + Potato (2:2); T10: Mustard + Radish (3:3); T11: Mustard + Beetroot (3:3) ;T12: Mustard + Carrot (3:3); T13: Mustard + Potato (3:3). Results indicated that, mustard sole crop performed significantly better in terms of growth and yield parameters. However, among the intercropping systems, mustard + radish showed higher plant height (179 and 174 cm), significantly higher plant drymatter accumulation (2478, 2456 kg/ha), number of siliqua (1689 and 1675), grain yield (972 and 950 kg/ha) and stalk yield (2267 and 2242 kg/ha) in both 3:3 and 2:2 row proportions, respectively. Moreover, all the root vegetable crops, namely radish, beetroot, carrot and potato, showed better results in terms of growth and yield parameters as sole crops compared to when grown in intercropping systems. Considering the row proportions the performance was better in 3:3 than 2:2 but not statistically significant. The study concludes that, mustard +radish in both 3:3 and 2:2 row proportions can be a better intercropping system for Telangana.

Direct and derivative spectrophotometric determination of mercury (II) using diacetylmonoxime benzoylhydrazone (DMBH).

A simple and derivative spectrophotometric method has been developed for the determination of mercury (II) using Diacetylmonoxime benzoylhydrazone (DMBH). Mercury (II) forms an orange coloured water soluble complex with the reagent in basic medium (pH 10.5).The molar absorptivity and Sandell’s sensitivity of coloured species are 2.01 x 104 L.mol-1 cm-1 and 0.0099 mg/cm2 respectively. Beer’s law is obeyed in the range 1.0029 – 12.0354 mg/ml of Hg (II) at lmax 361 nm. The developed derivative spectrophotometric method was employed for the determination of mercury (II). This method has been satisfactorily applied for the determination of mercury (II) in different environmental water samples and biological samples.

Polyvanadate acts at the level of plasma membranes through aadrenergic receptor and affects cellular calcium distribution and some oxidation activities.

The activities of calcium-stimulated respiration, calcium uptake, a-glycerophosphate dehydrogenase and rates of oxidation in state 3 and of H2O2 generation, were found to increase and that of pyruvate dehydrogenase decrease in mitochondria isolated from livers of rats administered intraperitoneally or perfused with polyvanadate. Phenoxybenzamine, an antagonist of a−adrenergic receptor, effectively prevented these changes. It was also found that perfusion of the liver with polyvanadate reproduced one of the best characterized events of a-adrenergic activation-stimulation of protein kinase C in plasma membrane accompanied by its decrease in cytosol. These experiments indicate for the first time the α-adrenergic mimetic action of polyvanadate.

Increase in hepatic ubiquinone on administration of diethylhexyl phthalate to the rat.

It is shown for the first time that the content of ubiquinone of liver increases (2·5 fold) on dietary administration of the widely-used industrial plasticizer diethylhexyl phthalate to the rat. The increase is localized almost entirely in mitochondria in which the concentration of the quinone per mg protein is 1·7 times the control. Incorporation of the radioactive precursor (acetate) reveals that the biosynthesis of ubiquinone is increased in the livers of plasticizer-administered animals. The rate of degradation is not altered.