scholarly journals Combined Influence of Grafting and Type of Protected Environment Structure on Agronomic and Physiological Traits of Single- and Cluster-Fruit-Bearing Cucumber Hybrids

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1604
Author(s):  
Pratapsingh Suresh Khapte ◽  
Pradeep Kumar ◽  
Nav Raten Panwar ◽  
Uday Burman ◽  
Youssef Rouphael ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Arid Regions ◽  
Low Cost ◽  
Water Productivity ◽  
Plant Performance ◽  
Growth And Yield ◽  
Plant Water ◽  
Yield Parameters ◽  
Plant Water Potential ◽  
Vegetable Cultivation

Protected vegetable cultivation is a fast-growing sector in which grafting plays a crucial role for success. Cucumber is predominantly grown under protected conditions. The popular slicing (mini) cucumber comprises two segments, single- and cluster-fruit-bearing. In the present study, the performance of select fruit-bearing hybrids grafted as scions onto commercial Cucurbita hybrid rootstock ‘NS-55’ was evaluated under three different low-cost protected structures in arid regions. With respect to type of protected structure, cucumber performance was superior under a naturally ventilated polyhouse (NVP) than an insect net house (INH) or a shade net house (SNH). Micro-climate parameters inside NVP (air temperature, RH and PAR) were more congenial for cucumber than those in net houses, thereby facilitating improved physiology (chlorophyll fluorescence, chlorophyll and plant water potential) and leaf mineral status. Grafting invariably improved growth and yield parameters under all protected structures. Overall plant performance was better in the grafted cluster-fruit-bearing hybrid ‘Terminator’ than the single-fruit-bearing hybrid ‘Nefer’ or their non-grafted counterparts. Furthermore, NVP was found to be superior to net houses for water productivity, and grafted plants were more water use efficient than their counterpart non-grafted plants. Thus, NVP can be considered a suitable low-cost protected structure in conjunction with grafting to boost cucumber crop and water productivity in arid regions.

scholarly journals Development of Crop Geometry for Drip Irrigated Rice Cultivation

2021 ◽  
pp. 97-105
Author(s):  
S. Vallal Kannan ◽  
V. Ravikumar
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Water Productivity ◽  
Rice Cultivation ◽  
Growth And Yield ◽  
Net Return ◽  
Yield Parameters ◽  
Loam Soil ◽  
Use Efficiency ◽  
Raised Bed

Aims: To determine the effectiveness of the selected dripper spacing and dripper discharge rate on crop growth and yield parameters of rice crop and to determine the suitable variety and crop geometry for higher productivity and use efficiency of drip irrigations system. Study design: Experiment was conducted in strip plot design, method of establishment as main plot treatment viz., Direct seeded under raised bed (M1) and Transplanting under raised bed, varieties as sub-plot treatment viz., ‘ADT 54’, ‘TKM 13’ and‘ CR 1009 sub-1’(medium and long duration variety)and spacing as sub- sub-plot treatment viz., 20 x 10 cm , 20 x 20 cm , 25 x 25 cm and 20 x 40 x 10 cm (Paired row) . Place and duration of the study: Agricultural Engineering College and Research Institute, Kumulur, Tiruchirapalli district of Tamil Nadu during 2019-2021(two years) in sandy clay loam soil during Samba season Methodology: The growth and yield parameters viz., plant height, number of tillers and productivity tillers, number of filled grains, test weight and grain and straw yield was observed and economics on cost of cultivation, gross return, net return and BCR were calculated and water use efficiency and water productivity were calculated. Results: Studies showed that 90 cm lateral and 60 cm dripper spacing with 4lph is the optimum for rice cultivation under sandy clay loam soil. Combination of direct seeded rice in raised bed with medium duration variety ‘TKM 13’ in the spacing of 20x40x10 cm(paired row)was recorded higher grain yield(7075 kg/ha) and net return(Rs. 82526/ha), BCR (2.76 )and higher water use efficiency (7.69 kg./ha-mm) in drip irrigated paddy cultivation during Samba season. Conclusion: Direct seeding in raised bed with medium duration variety at the spacing of 20x40x10 cm along with other agronomic practices is the best for getting higher yield parameters, yield, net return, higher water use efficiency and water productivity in Samba (Rabi) season under drip irrigated rice cultivation.

Effects of different cadmium levels on the growth and yield parameters of wild Vigna

2018 ◽  
Vol 63 (2) ◽  
pp. 169-182
Author(s):  
Beckley Ikhajiagbe ◽  
◽  
Geoffery O. Anoliefo ◽  
Edokpolor O. Ohanmu ◽  
Ephraim Aliu ◽  
...  
Keyword(s):  
Growth And Yield ◽  
Yield Parameters

The Effect of Water Shortage on Potted Peach Trees in Relation to Ecophysiological Parameters and Infra-red Thermometry

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 541b-541
Author(s):  
Rita Giuliani ◽  
James A. Flore
Keyword(s):  
Chlorophyll Fluorescence ◽  
Gas Exchange ◽  
Early Detection ◽  
Water Potential ◽  
Canopy Temperature ◽  
Water Shortage ◽  
Development Rate ◽  
Plant Water ◽  
Infra Red ◽  
Peach Trees

Potted peach trees grown outdoors during the 1997 season were subjected to drought and subsequent rewatering to evaluate their dynamic response to soil water content. The investigation was primarily focused on the early detection of plant water stress to prevent negative effects on the growth. Leaf chlorophyll fluorescence and canopy temperature estimates (by infra-red thermometry) were conducted. Drought effect on physiological processes were detected through by estimates of canopy development rate, leaf gas-exchange measurements; while leaf water potential was measured to characterize plant water status. A decrease in the canopy's development rate was found 1 week after irrigation was stopped, which also coincided with a more-negative leaf water potential, whereas a decrease of the gas-exchange activities occurred several days later. No significant differences between the stressed and control plants were recorded by the chlorophyll fluorescence parameters (Fo, Fm, Fv and the ratio Fv/Fm), whereas the infra-red estimates of canopy temperature detected a slight increase of the canopy surface temperature (connected to the change of leaf energy balance and in relation to partial stomatal closure) on the non-irrigated plants 1 week after the beginning of the trial. The use of infra-red thermometry for early detection of water shortage is discussed.

Treadle pump: A low cost irrigation option for marginal farmers

2018 ◽  
Vol 5 (03) ◽  
Author(s):  
ATIQUR RAHMAN ◽  
ASHUTOSH UPADHYAYA ◽  
BP BHATT
Keyword(s):  
Low Cost ◽  
Water Productivity ◽  
High Water ◽  
Water Saving ◽  
Age Group ◽  
Male And Female ◽  
Human Power ◽  
Dry Spells ◽  
Supplementary Irrigation ◽  
Land Holdings

The population of marginal farmers in India is bound to increase due to continued division of farm holdings. Characteristically, marginal farmers are having more family labours but the production and productivity of their land holdings is low. The foremost reason behind this is the erratic rainfall and lack of assure supplementary irrigation during long dry spells. This paper presents the scope and applicability of a diaphragm based treadle pump in Bihar where groundwater is abundant and available at shallow depths round the year. Therefore, this pump could be very useful for marginal farmers in improving production and productivity of their tiny piece of land, as it uses human power and can be operated by male and female of age group 32- 45 years and lifts water from a depth ranging from 0- 30 feet. The water saving technologies such as bucket kit drum kit etc. could be used with this pump to irrigate the crops with high water productivity.

scholarly journals Effects of corn steep liquor on β-poly(l-malic acid) production in Aureobasidium melanogenum

AMB Express ◽  
2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Genan Wang ◽  
Bingyi Shi ◽  
Pan Zhang ◽  
Tingbin Zhao ◽  
Haisong Yin ◽  
...  
Keyword(s):  
Malic Acid ◽  
Low Cost ◽  
Corn Steep Liquor ◽  
Enrichment Analysis ◽  
Tca Cycle ◽  
Water Soluble ◽  
Growth And Yield ◽  
The Tca Cycle ◽  
Steep Liquor ◽  
Aureobasidium Melanogenum

Abstractβ-poly(l-malic acid) (PMLA) is a water-soluble biopolymer used in medicine, food, and other industries. However, the low level of PMLA biosynthesis in microorganisms limits its further application in the biotechnological industry. In this study, corn steep liquor (CSL), which processes high nutritional value and low-cost characteristics, was selected as a growth factor to increase the PMLA production in strain, Aureobasidium melanogenum, and its metabolomics change under the CSL addition was investigated. The results indicated that, with 3 g/L CSL, PMLA production, cell growth, and yield (Yp/x) were increased by 32.76%, 41.82%, and 47.43%, respectively. The intracellular metabolites of A. melanogenum, such as amino acids, organic acids, and key intermediates in the TCA cycle, increased after the addition of CSL, and the enrichment analysis showed that tyrosine may play a major role in the PMLA biosynthesis. The results presented in this study demonstrated that the addition of CSL would be an efficient approach to improve PMLA production.

Development of a sensor suite to determine plant water potential

2010 ◽  
Author(s):  
Vasu Udompetaikul ◽  
Shrini K Upadhyaya ◽  
David C Slaughter ◽  
Bruce D Lampinen
Keyword(s):  
Water Potential ◽  
Plant Water ◽  
Plant Water Potential ◽  
Sensor Suite
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