Ameliorative roles of biochar-based fertilizer on morpho-physiological traits, nutrient uptake and yield in peanut (Arachis hypogaea L.) under water stress

2021 ◽  
Vol 257 ◽  
pp. 107129
Author(s):  
Junlin Zheng ◽  
Shujun Wang ◽  
Ruimin Wang ◽  
Yinglong Chen ◽  
Kadambot H.M. Siddique ◽  
...  
2021 ◽  
Vol 49 (1) ◽  
pp. 12049
Author(s):  
Tekam L. MEGUEKAM ◽  
Dany P. MOUALEU ◽  
Victor D. TAFFOUO ◽  
Hartmut STÜTZEL

Salinity is the main environmental factor accountable for decreasing crop productivity worldwide. The effects of NaCl salinity on plant growth (leaf relative water content (RWC), leaf dry weight (LDW), shoot length (SL), number of leaves (NL), number of branches (NB) and total leaf area (TLA) and physiological characteristics (stomatal conductance (gs), transpiration rate (TR), net photosynthetic (Pn), yield of photosystem II (ΦPsII) and the intercellular CO2 concentration (CO2int) in peanut (Arachis hypogaea L.) varieties (‘Vanda’, ‘P244601’ and ‘Pl184948’, widely used in Cameroon, Tanzania and Ghana, respectively, were investigated under hydroponic condition. Plants were subjected to four levels of NaCl (0, 40, 80 and 120 mM) at early seedling growth stage of plant development. Application of NaCl treatment led to a significant decrease in LDW, SL, NL, TLA, Pn, gs, TR and CO2int concentration of ‘Vanda’ and ‘P244601’ compared to untreated plants while the plant growth inhibition was notably noted at 120 mM NaCl in ‘P1184948’ for LDW, SL and NB. The highest depressive effect was detected in gs of salt-sensitive ‘Vanda’ while the lowest were recorded in gs of salt-tolerant ‘P1184948’ at high salinity level. Enhanced NaCl concentrations led to a significant increase in ΦPSII of ‘P1184948’ compared to ‘Vanda’, ‘P244601’ and untreated plants. Leaf CHL content was significantly increased in moderately-tolerant ‘‘P244601’ and salt-tolerant ‘P1184948’ at 80 mM NaCl compared to salt sensitive ‘Vanda’ and untreated plants. The depressive effect of salt on RWC was recorded at 120 mM NaCl in peanut leaves of all varieties. Under salt stress ‘P1184948’ was observed to have relatively higher tolerance on average of all growth and physiological traits than ‘Vanda’ and P244601’ suggesting that it could be grown in salt-affected soils.


1997 ◽  
Vol 32 (2) ◽  
pp. 197-209 ◽  
Author(s):  
L.L. Jain ◽  
R.K. Panda ◽  
C.P. Sharma

2014 ◽  
Vol 2 (01) ◽  
pp. 35-38
Author(s):  
K. V. Madhusudhan ◽  
C. Sudhakar

The present study was undertaken to ascertain the morphological responses of a groundnut cultivar K-134, under different water stress regimes characterized as control, mild, moderate and severe stress represented by 100, 75, 50 and 25% soil moisture levels respectively for eight days. Root length increased over control at mild, moderate stress treatments and inhibited at severe stress conditions on all days of sampling. Severe stress treatments had caused significant inhibition in shoot growth on day-4 and 8. The fresh and dry weights of roots and leaves and leaf area decreased over control in all stress treatments except under mild stress on day-4. The changes in theses parameters were dependent on stress severity and duration.


2018 ◽  
Vol 13 (21) ◽  
pp. 1080-1090 ◽  
Author(s):  
Ngulube Munsanda ◽  
Mutiti Mweetwa Alice ◽  
Phiri Elijah ◽  
Christopher Muriu Njoroge Samuel ◽  
Chalwe Hendrix ◽  
...  

2019 ◽  
Vol 50 (6) ◽  
pp. 749-762
Author(s):  
Amin Nobahar ◽  
Hamid Reza Zakerin ◽  
Marefat Mostafavi Rad ◽  
Saeed Sayfzadeh ◽  
Ali Reza Valadabady

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