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Background: Temperature stress (heat or cold) is becoming a major area of concern due to climate change affecting crop production worldwide. Chickpea leaves are most sensitive to variation in temperature so any variation in temperature (High or Low) causes substantial losses in yield due to disruption in physiological processes of the plant cell. Therefore to achieve maximum production under current scenario of climate change a better understanding of stress induced responses in leaves of chickpea and interrelationship between seed yield and leaf traits can prove to be useful. Methods: The field trials was conducted with ten genotypes of chickpea for two consecutive years (2017-2019) at Pulses Section, Chaudhary Charan Singh Haryana Agricultural University, Hisar to study various traits of leaf at 50% flowering stage (80-90 DAS). Temperature stress (cold or heat) was given by manipulating the sowing dates that is 15th October (early sown condition in Haryana), 15th November (Normal sown condition in Haryana) and 15th December (late sown condition in Haryana). Data were recorded when temperature was (<523892C for 7 days) in early sown and (>3523892C for 7 days) in late sown crops. Result: Results indicated that early sown crops experienced low temperature stress in the month of December-January while late sown crops showed high temperature stress in the month of March-April. The maximum values of leaf parameters were found in crops sown on 15th Novemberand minimum in 15th December sown crops and no significant differences in seed yield was recorded between 15th October and 15th November sowing, however, further delay in sowing to 15th December showed significant reduction in seed yield. Among genotypes maximum leaf parameters and seed yield were observed in H12-64 and H13-01 while minimum were found in H14-04. Seed yield exhibited significant positive correlation with all traits in 15th October and 15th November sowing while non-significant was on 15th December sowing. [ABSTRACT FROM AUTHOR]

Background: Climate change causes variation in global temperature in last two decades which causes detrimental effects on agricultural crops being grown in arid and semi-arid regions. Chickpea crop sensitive to variation in temperature as the late-sown crop is exposed to high temperatures (>35°C) at its reproductive stage in the months of February and March and early sown crops is exposed to low temperature (<5°C) at its vegetative stage in December and January so optimum sowing time plays a vital role for overall growth and development of the plants. Methods: The experiment comprising of three sowing dates that is 15th October (early sown condition in Haryana), 15th November (Normal sown condition in Haryana) and 15th December (late sown condition in Haryana) with ten chickpea (Cicer arietinum L.) genotypes namely ICCV 88503, ICCV 92944, HC-1, HC-3, HC-5, H12-64, H13-01, H13-02, H14-01 and H14-04 in randomized block design during Rabi season of 2017-18 and 2018-19 at Pulses Section, Chaudhary Charan Singh Haryana Agricultural University, Hisar. Result: Statistically no significant differences in seed yield was recorded between 15th October and 15th November sowing, however, further delay in sowing to 15th December showed significant reduction in seed yield while maximum values for recorded physiological parameters in chickpea genotypes were found in 15th November sowing and minimum in 15th December sowing. Among genotypes maximum physiological parameters and seed yield were observed in H12-64 and H13-01 while minimum were found in H14-04. [ABSTRACT FROM AUTHOR]

Background & objectives: Various indices are available to record different grade of severity of dental fluorosis. These indices have chances of inter- and intra- examiner variability. Therefore, study was conducted to compare three different indices for recording dental fluorosis to find out the best and most practical index of recording dental fluorosis for field studies in children living in a fluoride endemic area. Methods: The severity grades were recorded in 300 schoolchildren aged 12-15 yr having dental fluorosis of low, medium and high fluoride areas using three different indices, viz. Dean's fluorosis index (1942), tooth surface index for fluorosis (TSIF, 1984) and ICMR index (2013). Dean's index was used as gold standard. Results: The occurrence of moderate and severe cases was higher as per the Dean's index and of mild and severe cases was higher as per the TSIF and the ICMR index. The mean time required for recording dental fluorosis as per Dean's index and TSIF was similar and almost double (1.25±0.05 min) of that required for ICMR index (0.68±0.20 min). The intra-examiner variability was found to be least in the ICMR index compared to Dean's index and TSIF. Interpretation & conclusions: The ICMR index is a simple index with objective scores and takes less time in recording the dental fluorosis as compared to Dean's index and TSIF in field studies. [ABSTRACT FROM AUTHOR]

Highlights: [•] The genotype frequency of CYP2C19*2, *3, 2E1*5B, 3A4*1B were found to be 22.0%, 0.0%, 2.11% and 2.0% respectively. [•] We found no significant distribution of CYP genotypes among males and females. [•] The study of XMG may provide opportunities for screening and getting reduction in environment risk factor. [•] The study would be helpful for pharmacogenic testing in Haryana population. [•] The study would be helpful for drug induced toxicity and therapeutic failures. [Copyright &y& Elsevier]