Combined use of zinc nanoparticles and co-composted biochar enhanced wheat growth and decreased Cd concentration in grains under Cd and drought stress: A field study

2021 ◽  
Vol 23 ◽  
pp. 101518
Author(s):  
Arooj Bashir ◽  
Muhammad Zia ur Rehman ◽  
Khalid Mahmud Hussaini ◽  
Muhammad Adrees ◽  
Muhammad Farooq Qayyum ◽  
...  
HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 676c-676
Author(s):  
David Staats ◽  
James E. Klett

In June 1991, a two year field study was initiated to examine if three non-turf groundcovers with reputations for using low amounts of water actually use less water than Kentucky bluegrass (KBG). Irrigation treatments were based on percentages of ET (100%, 75%, 50%, 25%, 0%) and calculated by the modified Penman equation. Results from the 1991 season indicate that at the 100% and 75% treatments Potentilla tabernaemontani and Cerastium tomentosum were significantly better than the other species in terms of establishment and vigor but quality declined significantly at rates below 75%. At the 50% rate both KBG and Sedum acre maintained good quality although growth was slow. At the 25% rate, quality of KBG significantly declined while Sedum acre maintained good quality. Quality of Sedum acre declined only slightly at the 0% treatment and would be a good alternative to KBG if water conservation was a high priority in the landscape.


1999 ◽  
Vol 13 (1) ◽  
pp. 139-143 ◽  
Author(s):  
Glenn Wehtje ◽  
Larry W. Wells ◽  
James H. Choate ◽  
Neil R. Martin ◽  
John M. Curtis

A 3-yr field study was conducted in peanut in which weed control systems with varying levels of herbicides, cultivation inputs, or both were supplemented with mowing to remove weeds extending above the crop canopy. Highest yield and net returns were consistently obtained with the highest level of herbicide/cultivation inputs, and mowing was of no value. However, mowing was consistently beneficial to yield and net return when the only other weed control inputs were paraquat and 2,4-DB applied at 4 wk after planting (WAP) and cultivation at 10 WAP. In the absence of any other weed control inputs, mowing was detrimental in a drought stress year, but beneficial in years with near-normal growing conditions. Although disease incidence was aggravated by the lack of weed control inputs, it was generally independent of mowing.


2021 ◽  
Vol 2 (2) ◽  
pp. 62-66
Author(s):  
A. Dhakal

Wheat is a major cereal crop in the world. However, drought stress causes a severe loss in the productivity of wheat in different growing regions worldwide. Water deficit at the critical stage of the wheat growth causes a significant loss in yield of wheat. Drought stress affects every aspect of wheat growth from germination to maturity. Drought stress hampers different metabolic processes in the plant. It reduces chlorophyll content and photosynthesis in the leaf. It increases the production and accumulation of reactive oxygen species (ROS) which affects the various cellular mechanisms and also causes oxidative damage to RNA and DNA. Production of appropriate wheat genotype along with the adjustment of agronomic practices like efficient use of irrigation water, changing the sowing time and seed priming helps to minimize the effect of drought. Here in this review various effects of drought stress in wheat and its management options are discussed in brief.


2013 ◽  
Vol 177 (2) ◽  
pp. 168-177 ◽  
Author(s):  
Ulrich Zang ◽  
Michael Goisser ◽  
Karl-Heinz Häberle ◽  
Rainer Matyssek ◽  
Egbert Matzner ◽  
...  

Chemosphere ◽  
2019 ◽  
Vol 227 ◽  
pp. 109-116 ◽  
Author(s):  
Wei Du ◽  
Jingya Yang ◽  
Qingqing Peng ◽  
Xiaoping Liang ◽  
Hui Mao

2020 ◽  
Vol 12 (15) ◽  
pp. 6022 ◽  
Author(s):  
Rizwan Yaseen ◽  
Omar Aziz ◽  
Muhammad Hamzah Saleem ◽  
Muhammad Riaz ◽  
Muhammad Zafar-ul-Hye ◽  
...  

The temperature increase around the world is leading to generation of drought, which is a big threat to the productivity of crops. Abiotic stresses like drought increase the ethylene level in plants. In higher plants, 1-aminocyclopropane-1-carboxylate (ACC) is considered as the immediate precursor of ethylene biosynthesis. The application of ACC-deaminase (ACCD) possessing rhizobacteria could ameliorate the harmful results of drought stress by transforming ACC into non-harmful products. Biogas slurry (BGS) improves the water-holding capacity and structure of the soil. Thus, we speculated that the integrated application of ACCD possessing rhizobacteria and BGS might be an efficient approach to mitigate the drought stress for better wheat productivity. A field experiment was conducted under skipped irrigation situations. On the tillering stage (SIT) and flowering stage (SIF), the irrigations were skipped, whereas the recommended four irrigations were maintained in the control treatment. The results of this field experiment exposed that the ACCD possessing rhizobacterial inoculations with BGS considerably improved the stomatal and sub-stomatal conductance, transpiration and photosynthetic rates up to 98%, 46%, 38%, and 73%, respectively, compared to the respective uninoculated controls. The Pseudomonas moraviensis with BGS application improved the grain yield and plant height up to 30.3% and 24.3%, respectively, where irrigation was skipped at the tillering stage, as compared to the uninoculated controls. The data obtained revealed that the P. moraviensis inoculation + BGS treatment significantly increased the relative water content (RWC), catalase (CAT) activity, ascorbate peroxidase (APX) activity, as well as grain and shoot phosphorus contents, up to 37%, 40%, 75%, 19%, and 84%, respectively, at SIF situation. The results depicted that the P. moraviensis with BGS application under drought stress could be applied for enhancing the physiological, yield, and growth attributes of wheat.


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