Boron-induced improvement in physiological, biochemical and growth attributes in sunflower (Helianthus annuus L.) exposed to terminal drought stress

2018 ◽  
Vol 41 (8) ◽  
pp. 943-955 ◽  
Author(s):  
Muhammad Asif Shehzad ◽  
Muhammad Maqsood ◽  
Fahim Nawaz ◽  
Tasawer Abbas ◽  
Sanaullah Yasin
Keyword(s):  
Drought Stress ◽  
Helianthus Annuus ◽  
Helianthus Annuus L ◽  
Terminal Drought ◽  
Growth Attributes ◽  
Terminal Drought Stress

scholarly journals EFEITOS DA SUPLEMENTAÇÃO COM RESÍDUO DA ATIVIDADE DA CARCINICULTURA EM PLANTAS DE GIRASSOL SUBMETIDAS A CONDIÇÕES DE ESTRESSE HÍDRICO

Irriga ◽  
2018 ◽  
Vol 22 (3) ◽  
pp. 591-605
Author(s):  
BRENNDA BEZERRA BRAGA ◽  
Franklin Aragão Gondim ◽  
Francisco Holanda Nunes Junior ◽  
Sabrina Isabel De Oliveira Paiva ◽  
Rifandreo Monteiro Martins ◽  
...  
Keyword(s):  
Drought Stress ◽  
Plant Growth ◽  
Helianthus Annuus ◽  
Antioxidative Enzymes ◽  
Stress Conditions ◽  
Shrimp Farming ◽  
Production Costs ◽  
Shrimp Waste ◽  
Helianthus Annuus L ◽  
Federal Institute

EFEITOS DA SUPLEMENTAÇÃO COM RESÍDUO DA ATIVIDADE DA CARCINICULTURA EM PLANTAS DE GIRASSOL SUBMETIDAS A CONDIÇÕES DE ESTRESSE HÍDRICO  BRENNDA BEZERRA BRAGA1; FRANSCISCO HOLANDA NUNES JUNIOR2; SABRINA ISABEL DE OLIVEIRA PAIVA1; RIFANDREO MONTEIRO BARBOSA1; ROBERTO ALBUQUERQUE PONTES FILHO1 E FRANKLIN ARAGÃO GONDIM1*  1Instituto Federal de Educação, Ciência e Tecnologia do Estado do Ceará – Campus Maracanaú. Av. Contorno Norte, 10, Distrito Industrial, Maracanaú, Ceará, Brasil. Email: [email protected]; [email protected]; [email protected]; [email protected]; *[email protected] (autor correspondente).  2Instituto Federal de Educação, Ciência e Tecnologia do Estado do Ceará – Campus Jaguaribe. Av. B - Bairro Manoel Costa Moraes, Jaguaribe, Ceará, Brasil. Email: [email protected]  1 RESUMO Objetivou-se identificar os efeitos da utilização de resíduo de carcinicultura sobre o crescimento e sistema enzimático antioxidativo de girassol em condições de estresse hídrico. O trabalho foi conduzido na casa de vegetação do Instituto Federal do Ceará – campus Maracanaú, Ceará, Brasil. As sementes foram semeadas em baldes contendo: 1) areia de granulometria fina; 2) areia + adubo; 3) areia + 7g de resíduo de carcinicultura; 4) areia + 14g de resíduo de carcinicultura. Decorridos 16 dias da semeadura, metade de cada grupo de plântulas descrito foi submetido à suspensão de rega. Foram realizadas 2 coletas:19 e 21 dias após a semeadura. Determinaram-se: as matérias frescas e secas da parte aérea, das raízes e total e as atividades das enzimas antioxidativas em folhas e raízes. De modo geral, a utilização de resíduo de carcinicultura no substrato proporcionou melhoria no crescimento das plantas. Isso pode ter ocorrido devido ao aumento nas atividades das enzimas antioxidativas. Em condições controle, a aplicação de 14g de resíduo ocasionou maiores produções de matéria seca total e atividades das enzimas antioxidativas. Concluiu-se que o resíduo de carcinicultura pode ser uma alternativa aos fertilizantes, reduzindo os custos de produção, além de ser uma destinação adequada ao resíduo de carcinicultura. Palavras-chave: estresse oxidativo, Helianthus annuus L., biofertilizante  BRAGA, B. B.; NUNES JUNIOR, F. H.; PAIVA, S. I. O.; BARBOSA, R. M.; PONTES FILHO, R. A.; GONDIM, F. AEFFECTS OF SUPPLEMENTATION WITH WASTE OF SHRIMP FARMING ON SUNFLOWER PLANTS UNDER DROUGHT STRESS CONDITIONS  2 ABSTRACT The aim of this study was to identify the effects of the use of shrimp waste on plant growth and the antioxidative enzymatic defense system of sunflower under drought stress conditions. The experiment was carried out under greenhouse conditions at the Instituto Federal de Educação, Ciência e Tecnologia (Federal Institute of Education, Science and Technology), Maracanaú Campus, Ceará, Brazil. The seeds were sown in plastic pots containing: 1) fine-grained sand; 2) sand + fertilizer; 3) sand + 7g of shrimp waste; 4) sand + 14g shrimp waste. At 16 days after sowing, half of each seedling group described was submitted to irrigation suspension. Two plant harvests were performed: at 19 and 21 days after sowing. The following parameters were determined: shoots, roots and total fresh and dry masses, and activities of antioxidative enzymes in shoots and roots. In general, the use of shrimp waste in the substrate provided higher plant growth. This could be attributed to the increased activity of antioxidative enzymes. Under control conditions, the application of 14g of waste led to higher total dry mass and higher activities of antioxidative enzymes. It is concluded that the shrimp waste may be an alternative to fertilizers, reducing production costs.  Moreover, it seems to be an adequate disposal for shrimp farming waste. Keywords: oxidative stress, Helianthus annuus L., biofertilizer

scholarly journals Effects of Enzymatic Biofertiliser on Growth and Yield of Lentil Genotypes under Deficit Irrigation/ Enzimatisko Biomçslojumu Ietekme Uz Daþâdu Lçcu Genotipu Augðanu Un Raþu Irigâcijas Trûkuma Apstâkïos

2014 ◽  
Vol 68 (3-4) ◽  
pp. 174-179
Author(s):  
Mohsen Janmohammadi ◽  
Hamid Mostafavi ◽  
Naser Sabaghnia
Keyword(s):  
Drought Stress ◽  
Grain Yield ◽  
Deficit Irrigation ◽  
Morphological Traits ◽  
Foliar Application ◽  
Growth And Yield ◽  
Sowing Time ◽  
Ecological Zones ◽  
Terminal Drought ◽  
Terminal Drought Stress

Abstract Lentil (Lens culinaris Medic.) is one of the important pulse crops in semiarid agro-ecological zones with a Mediterranean-type climate. Terminal drought stress and poor plant nutrition are important factors limiting crop under these regions. The effects of enzymatic biofertiliser (MOG) application at sowing time or during reproductive stage on some morphological traits and yield components of eight lentil lines were evaluated under deficit-irrigation conditions at Maragheh (37°23' N; 46°16' E) in northwestern Iran. Results revealed that application of biofertiliser did not significantly affect most of the morphological traits. However, foliar application of MOG during early flowering stage somewhat increased 100-grain weight and grain yield and decreased the number of empty pod per plant. Moreover, the results indicated that there was significant diversity between lentil lines for the investigated traits. The best performance for grain yield was recorded for FLIP 86-35L. The overall lack of considerable response of lentil to the MOG treatments may suggest that the optimal efficiency of biofertiliser cannot be achieved under water scarcity conditions. Improvement in the adaptation of enzymatic fertilisers to semi arid regions with terminal drought stress requires to be increased.

Groundnut mutants with end-of-season drought tolerance for the marginal dry lands of North Kordofan State, Sudan.

2021 ◽  
pp. 243-257
Author(s):  
Elgailani Abdalla ◽  
Tarig Ahmed ◽  
Omar Bakhit ◽  
Yasir Gamar ◽  
Salih Elshaikh ◽  
...  
Keyword(s):  
Drought Stress ◽  
Drought Tolerance ◽  
Small Scale ◽  
Mutation Induction ◽  
Total Production ◽  
Drought Period ◽  
Dry Lands ◽  
Terminal Drought ◽  
Drought Tolerant ◽  
Terminal Drought Stress

Abstract Groundnut (Arachis hypogaea L.), produced in the traditional small-scale rainfed sector of Western Sudan, accounts for 80% of the total annual groundnut acreage, producing 70% of the total production. Low productivity of groundnut is a characteristic feature in North Kordofan State, which is characterized as the most vulnerable state to the impact of climate change. Terminal drought stress resulting from reduction in rainfall amount and distribution at the end of the season is the most deleterious drought period, as it coincides with groundnut pod filling and maturation periods. High and stable yields under subsistence farming conditions in North Kordofan State could be realized only by using adapted high-yielding, drought-tolerant genotypes. Mutation induction by gamma-rays of 200 and 300 Gy was utilized to irradiate 500 dry seeds of the Spanish-type groundnut genotypes, Barberton, Sodari, ICGV 89104, ICGV 86743, ICGV 86744 and ICG 221, aiming at increasing the chances of obtaining genotypes with the desired drought-tolerant traits. Mutants were selected from the M3 plants using visual morphological traits. Groundnut mutants at the M4 and M5 generations, advanced by single seed descent, were evaluated for end-of-season drought tolerance. A terminal drought period of 25 days was imposed after 60 days from planting, using a rainout shelter. Mutants that survived 25 days of terminal drought stress were further evaluated for agronomic performance under rainfed field conditions. The groundnut mutant, Barberton-b-30-3-B, produced 1024 kg/ha, a significantly higher mean pod yield over 12 seasons compared with 926 kg/ha for 'Gubeish', the widely grown released check cultivar, showing overall yield advantage of 11%. Under 5 years of participatory research, Barberton-b-30-3-B was ranked the best with yield increment of 21% over 'Gubeish' under the mother trials. The GGE biplot analysis for 12 and five seasons, respectively, showed that Barberton-b-30-3-B was stable and produced a good yield in both high and low rainfall situations. Hence, Barberton-b-30-3-B was found to be a suitable mutant for sustainable profitable yields in the marginal dry lands of North Kordofan State and was officially released as 'Tafra-1' by the National Variety Release Committee during its second meeting of April 2018.

scholarly journals Evidence for genotypic differences among elite lines of common bean in the ability to remobilize photosynthate to increase yield under drought

2016 ◽  
Vol 155 (6) ◽  
pp. 857-875 ◽  
Author(s):  
I. M. RAO ◽  
S. E. BEEBE ◽  
J. POLANIA ◽  
M. GRAJALES ◽  
C. CAJIAO ◽  
...  
Keyword(s):  
Drought Stress ◽  
Grain Yield ◽  
Common Bean ◽  
Harvest Index ◽  
Genotypic Differences ◽  
Area Index ◽  
Wild Bean ◽  
Terminal Drought ◽  
Terminal Drought Stress ◽  
Pod Harvest Index

SUMMARYCommon bean (Phaseolus vulgaris L.) is the most important food legume for human consumption. Drought stress is the major abiotic stress limitation of bean yields in smallholder farming systems worldwide. The current work aimed to determine the role of enhanced photosynthate mobilization to improve adaptation to intermittent and terminal drought stress and to identify a few key adaptive traits that can be used for developing drought-resistant genotypes. Field studies were conducted over three seasons at Centro Internacional de Agricultura Tropical, Palmira, Colombia to determine genotypic differences in adaptation to intermittent (two seasons) and terminal (one season) drought stress compared with irrigated conditions. A set of 36 genotypes, including 33 common bean, two wild bean and one cowpea were evaluated using a 6 × 6 lattice design under irrigated and rainfed field conditions. Three common bean elite lines (NCB 226, SEN 56, SER 125) were identified with superior levels of adaptation to both intermittent and terminal drought stress conditions. The greater performance of these lines under drought stress was associated with their ability to remobilize photosynthate to increase grain yield based on higher values of harvest index, pod harvest index, leaf area index and canopy biomass. Two wild bean germplasm accessions (G 19902, G 24390) showed very poor adaptation to both types of drought stress. One small-seeded black line (NCB 226) was superior in combining greater values of canopy biomass with greater ability to mobilize photosynthates to grain under both types of drought stress. Two small-seeded red lines (SER 78, SER 125) seem to combine the desirable traits of enhanced mobilization of photosynthates to seed with effective use of water through canopy cooling under terminal drought stress. Pod harvest index showed significant positive association with grain yield under both types of drought stress and this trait can be used by breeders as an additional selection method to grain yield in evaluation of breeding populations for both types of drought stress.

scholarly journals Abscisic Acid Flux Alterations Result in Differential Abscisic Acid Signaling Responses and Impact Assimilation Efficiency in Barley under Terminal Drought Stress

2014 ◽  
Vol 164 (4) ◽  
pp. 1677-1696 ◽  
Author(s):  
Christiane Seiler ◽  
Vokkaliga T. Harshavardhan ◽  
Palakolanu S. Reddy ◽  
Götz Hensel ◽  
Jochen Kumlehn ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Drought Stress ◽  
Assimilation Efficiency ◽  
Abscisic Acid Signaling ◽  
Terminal Drought ◽  
Terminal Drought Stress

scholarly journals Early vigour in wheat: Could it lead to more severe terminal drought stress under elevated atmospheric [CO 2 ] and semi‐arid conditions?

2020 ◽  
Vol 26 (7) ◽  
pp. 4079-4093
Author(s):  
Maryse Bourgault ◽  
Heidi A. Webber ◽  
Karine Chenu ◽  
Garry J. O’Leary ◽  
Thomas Gaiser ◽  
...  
Keyword(s):  
Drought Stress ◽  
Terminal Drought ◽  
Arid Conditions ◽  
Early Vigour ◽  
Terminal Drought Stress ◽  
Semi Arid
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