scholarly journals Effect of elevated CO2 and temperature on growth and yield contributing parameters of pea (Pisum sativum L.) crop

2021 ◽  
Vol 21 (1) ◽  
pp. 7-11
Author(s):  
MEENA KUMARI ◽  
S.C. VERMA ◽  
S.K. BHARDWAJ

An experiment was conducted during 2014 and 2015 at Solan, Himachal Pradesh to study the effect of elevated CO2 (eCO2) and temperature (eT) on growth and yield contributing parameters of pea (Pisum sativum L.) crop under four conditions of CO2 and temperature in open top chambers and open natural condition. The study revealed that pea plants performed better under eCO2, with slight changes in development and yield attributing traits, depending on the cultivars. However, the beneficial direct impactof elevated CO2 (eCO2) on crop yield can counteract by elevated temperature (eT). Pooled data for two years indicated that growth and yield attributing traits like plant height, days to first harvest of pods, harvest duration, fresh weight and biomass, number of pods per plant, pod length, pod girth, pod yield were improved under eCO2. However, responses of these attributes were negated with eT. Pea cultivars PB-89 performed well under eCO2 and eT conditions as compared to Azad P-1.

2016 ◽  
Vol 8 (4) ◽  
pp. 1941-1946 ◽  
Author(s):  
Meena Kumari ◽  
S. C. Verma ◽  
S. K. Bhardwaj ◽  
Ashok K. Thakur ◽  
Rakesh Kumar Gupta ◽  
...  

Global warming is predicted to have negative effect on plant growth due to the damaging effect of high temperature on plant development. The field experiment was conducted during 2014-15 to study effect of elevated CO2 and temperature on growth parameters of pea (Pisum sativum L.) crop in order to check the effect of climatechange on vegetable crops. Effect was studied under four conditions i.e. Open Top Chambers, T1: OTC - elevated CO2550±10 ppm; T2: OTC -elevated CO2 550±10 ppm and temperature 1°C; T3: OTC - ambient CO2 and temperature (reference) and T4: natural condition. Maximum plant height at 50 % flowering was recorded in T1 (84.29cm) at elevated CO2 which differed significantly with T2 (79.47cm) at elevated CO2 and temperature, T3 (73.60cm) at ambient CO2 and temperature and natural condition (70.73cm). Minimum days to 50 per cent flowering were recorded in plants growing under T2 (68.56 days). Maximum pollen viability was recorded in T1 (77.42%) followed by T3 (76.36%), T4 (74.65%) and T2 (69.97%). Internode length of plants grown under T1 was maximum (7.01cm) followed by T2 (6.68cm), T3 (6.00cm) and T4 (5.05cm). Elevated temperature and CO2 had significant effects on growth and development in vegetables. Overall, growth parameters of pea crop were affected positively by elevated CO2 whereas under interaction effect of elevated CO2 and temperature these positive effects of CO2 were offset by elevated temperature effect and hampered the growth of pea crop which interns can affect the yield and quality of crop under changing climate scenario.


2021 ◽  
Vol 21 (1) ◽  
pp. 1-6
Author(s):  
MEENA KUMARI ◽  
S.C. VERMA ◽  
S.K. BHARDWAJ

Investigations were carried out during 2014 and 2015 to study the effect of elevated CO2 and temperature on growth and yield contributing parameters of bell pepper (Capsicum annuum L.) under open top chamber (OTC) at research farm of Department of Environmental Science, Dr Y.S. Parmar UHF, Nauni, Solan, Himachal Pradesh with four treatments [T1(eCO2): OTC with elevated CO2 550±10 ppm; T2(eT & eCO2): elevated temperature by 1°C and elevated CO2 550±10 ppm; T3(aT & aCO2): ambient temperature and CO2 and T4: natural condition] and each treatment had two varieties (California Wonder and Solan Bharpur) of bell pepper which were replicated thrice. Results revealed that bell pepper recorded maximum plant height, leaf area, yield attributes under eCO2 which were significantly higher than all other treatments. However, the harvest duration and days to first harvest was lowest under eCO2. Higherfruit size as well as fruit weight was recorded with eCO2 followed by eT and eCO2, aT and aCO2 and open natural condition. But maximum number of fruits and highest fruit yield was obtained with natural condition which was significantly superior over eCO2 as well as over eT and eCO2 because increase in temperature negated fruit set due to less pollen viability under eCO2 and eT & eCO2 as compared to open. In open natural conditions due to higher pollen viability and more fruit setting as compared to higher CO2 andtemperature conditions, it resulted more yield. Solan Bharpur recorded higher total fruit yield (800.2 g plant-1) than California Wonder (399.1 g plant-1). Elevated CO2 has positive effect on plant growth and yield attributes in both cultivars of bell pepper. However, under interactive effect of elevated CO2 and elevated temperature, rising temperature negated the positive effects of elevated CO2 on crop production.


2021 ◽  
Vol 22 (2) ◽  
pp. 109-115
Author(s):  
PARISHMITA DAS ◽  
R. L. DEKA ◽  
J. GOSWAMI ◽  
SMRITA BARUA

A pot experiment was conducted during kharif, 2018 inside CO2 Temperature Gradient Tunnels (CTGT) to assess the effect of elevated CO2 and temperature [T0: ambient temperature & ambient CO2, T1: elevated temperature (ambient +1°C) & elevated CO2 (ambient+25% of ambient) and T2: elevated temperature (ambient +2°C) & elevated CO2 (ambient + 50% of ambient)] under three different transplanting dates (D1: 25th June, D2: 10th July and D3: 25th July) on growth and yield of rice in Jorhat district of Assam. The result showed that occurrence of different phenological stages was earlier under elevated CO2-Temperature conditions resulting in reduction of crop duration by about 8-15 days. On the other hand,days to tiller initiation increased whereas days to panicle initiation, flowering and physiological maturity reduced with delay in transplanting. Yield attributing parameters were improved under elevated CO2-Temperature condition. With respect to dates of transplanting, D2 recorded higher number of panicles hill-1 (17.9) and higher filled grains panicle-1 (156.6). Higher grain yield (55.9g hill-1) was found under T2 which was at par with T1 and it was significant higher over the ambient. Grain yield was significantly reduced when transplanting was delayed after 10th July. The results revealed that the growth and yield of rice was found to be better under elevated CO2-temperature levels when transplanted on 10th July.


Author(s):  
Shovan Krishna Das ◽  
Khaleda Khatun ◽  
Tahmina Mostarin ◽  
Mutasim Fuad Shuvo ◽  
Kanij Fatima ◽  
...  

An experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka during the period from October, 2018 to March, 2019 to study the influence of sulphur and boron on growth and yield of garden pea. The experiment comprised of two factors. Factor A: Levels of Sulphur (4 levels); S0: 0 kg S/ha (Control), S1: 10 kg S/ha, S2: 20 kg S/ha, S3: 30 kg S/ha and Factor B: Levels of Boron (4 levels); B0: 0 kg B/ha (Control), B1: 1 kg B/ha, B2: 2 kg B/ha, B3: 3 kg B/ha. This experiment was laid out in Randomized Complete Blocked Design (RCBD) with three replications. Sulphur and Boron application influenced significantly on most of the parameters. In case of sulphur, maximum plant height (50.84 cm), number of pods per plant (14.00), pod length (8.95 cm), number of seeds per pod (5.56) and green pod yield (10.76 t/ha) were recorded from S3 treatment. In case of boron application, maximum plant height (49.17 cm), number of pods per plant (13.48), pod length (8.66 cm), number of seeds per pod (5.41) and green pod yield (10.14 t/ha) were found in B2 treatment. Among the treatment combination, S3B2 treatment gave the highest green pod yield (12.19 t/ha) and the lowest (5.38 t/ha) was obtained from S0B0 treatment. So, garden pea sown at 30 kg S/ha with 2 kg B/ha for suitable green pea production in Dhaka region.


2021 ◽  
pp. 1-17
Author(s):  
Farouk El-Aidy ◽  
Nabil A. Hassan ◽  
Younis El-Waraky ◽  
Faten Abu El-Ftooh ◽  
Yousry Bayoumi ◽  
...  

2000 ◽  
Vol 3 (8) ◽  
pp. 1281-1282
Author(s):  
M.A. Parvez ◽  
Faqir Muhammad ◽  
Mumtaz Ahmad

2017 ◽  
Vol 29 (1) ◽  
pp. 11-20
Author(s):  
D. Aminu ◽  
O. B. Bello ◽  
B. A. Gambo ◽  
A. H. Azeez ◽  
J. O. Agbolade ◽  
...  

Field irrigation experiments were conducted to assess the varietal performance and correlation of pod yield and yield attributes under irrigation at the Teaching and Research Farm, University of Maiduguri, Nigeria, during 2015 and 2016 dry seasons. The results revealed that the most outstanding for fresh pod yield per plant were okra cultivar Kwadag Y’ar gagure Salkade and, Kwadam in descending order with yield ranging from 580.38-622.67g, while the composite cultivar had the lowest value of pod yield of 428.62g over the two years. The highest mean values for number of pods per plant and number of primary branches per plant were observed for Salkade and Y’ar gagure, respectively. Highest fresh pod length and fresh pod diameter were also exhibited for Salkade and Kwadag, respectively. Genotypic coefficient of variation was higher than the phenotypic variation for all the yield contributing characters. Days to 50% flowering were positive and highly significance difference associated with plant height, number of pods per plant and fresh weight per pod. Path coefficient analysis showed that number of pods per plant exhibited positive and direct effects on pod yield across years. Indirect effect of other yield components through this character also contributed mainly towards pod yield. Therefore, plant height, days to 50% flowering, number of pods per plant, pod length, pod diameter, number of primary branches per plant and fresh weight per pod could be considered for selection and improvement for high pod yielding varieties in okra.


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