scholarly journals Morphological characterization of soybean (Glycine max L. Merril) in drought stress condition and P fertilizer application

2021 ◽  
Vol 713 (1) ◽  
pp. 012019
Author(s):  
A O Siregar ◽  
C Hanum ◽  
D S Hanafiah
Keyword(s):  
Glycine Max ◽  
Drought Stress ◽  
Stress Condition ◽  
Fertilizer Application ◽  
Morphological Characterization ◽  
P Fertilizer ◽  
Drought Stress Condition ◽  
Glycine Max L

scholarly journals Physiological and Developmental Response of Selected Upland Rice Genotypes to Water and Nutrient Stress Condition

2019 ◽  
pp. 22-39
Author(s):  
Richard Odongo Magwanga ◽  
Joy Nyangasi Kirungu
Keyword(s):  
Drought Stress ◽  
Water Deficit ◽  
Good Yield ◽  
Stress Condition ◽  
Fertilizer Application ◽  
Nutrient Stress ◽  
Rice Production ◽  
Fertilizer Treatment ◽  
Rice Cultivars ◽  
Drought Stress Condition

Drought is a major challenge for all agricultural crops, but for rice, it is even more serious, because of its semi aquatic phylogenetic origins and the diversity of rice ecosystems and growing conditions. The most important source of climate-related risks for rice production in rain-fed areas is drought.Crop physiology has made a significant contribution to understanding the mechanisms underlying crop growth and development, and bridging the “phenotype gap” generated by the recent progress in genomics. The study aimed to determine growth and physiological response of IRAT 109 and Lemont to water deficit and fertilizer application. Plants were subjected to water nutrient stress treatment in the field. Water and fertilizer treatment were initiated at 42 days after sowing (das). Fertilizer treatment was applied at 60 Kgha-1N and 60 Kgha-1N+45 Kgha-1P. Morphological and physiological measurements were done at 21, 42, 63 and 84th das. Root sampling done during the periods, at depths of 0-10 cm, 10-20 cm, and 20-40 Cm. The soil moisture content had a significant effect and decreased with increasing water deficit. The plant height, plant biomass both shoots and root reduced with decreasing water content and nutrient load in the soil. Lemont was significantly affected and registered lower values for various growth indices compared to IRAT 109. The was significant reduction in yields between the two rice cultivars under drought stress condition, though IRAT 109 exhibited relatively higher yield index under drought stress condition, the improved performance could be attributed to its ability to escape drought stress due to its early maturing ability. Fertilizer application has a significant effect on yield and yield component in rice, thus the proper fertilizer application is a key in achieving good yield in rice production. The finding of this research will help farmers in adopting high precision fertilizer application to ensure a good yield. In addition, rice breeders can utilize IRAT109 in developing more resilient and highly adaptive rice cultivars.

scholarly journals Yield characterization of Mediterranean barley under drought stress condition

2019 ◽  
Vol 4 (3) ◽  
pp. 518-533
Author(s):  
Farid Hellal ◽  
◽  
Mohamed Abdel-Hady ◽  
Ismail Khatab ◽  
Saied El-Sayed ◽  
...  
Keyword(s):  
Drought Stress ◽  
Stress Condition ◽  
Drought Stress Condition

scholarly journals Inheritance of Glycinin Subunits and Characterization of Glycinin Molecules Lacking the Subunits in Soybean (Glycine max (L.) Merr.).

1996 ◽  
Vol 46 (1) ◽  
pp. 11-15 ◽  
Author(s):  
Kazuhiro Yagasaki ◽  
Norihiko Kalzuma ◽  
Keisuke Kitamura
Keyword(s):  
Glycine Max ◽  
Glycine Max L

scholarly journals The isolation and characterization of a root lectin from soybean (Glycine max (L), cultivar Chippewa).

1981 ◽  
Vol 256 (24) ◽  
pp. 12905-12910 ◽  
Author(s):  
W Gade ◽  
M.A. Jack ◽  
J.B. Dahl ◽  
E.L. Schmidt ◽  
F Wold
Keyword(s):  
Glycine Max ◽  
Isolation And Characterization ◽  
Glycine Max L ◽  
Root Lectin

Characterization of a 7S globulin-deficient mutant of soybean (Glycine max (L.) Merrill)

1998 ◽  
Vol 258 (3) ◽  
pp. 208-214 ◽  
Author(s):  
M. Hayashi ◽  
K. Harada ◽  
T. Fujiwara ◽  
K. Kitamura
Keyword(s):  
Glycine Max ◽  
Deficient Mutant ◽  
Glycine Max L ◽  
7S Globulin

scholarly journals Response of some upland rice varieties to drought stress

2017 ◽  
Vol 1 (2) ◽  
pp. 69-77
Author(s):  
EDI PURWANTO ◽  
SAMANHUDI SAMANHUDI ◽  
YONIAR EFFENDI
Keyword(s):  
Drought Stress ◽  
Stress Condition ◽  
Upland Rice ◽  
Rice Variety ◽  
Dry Weight ◽  
Grain Weight ◽  
Rice Varieties ◽  
Resistance Level ◽  
Drought Stress Condition ◽  
Four Levels

Purwanto E, Samanhudi, Yoniar Effendi Y. 2017. Response of some upland rice varieties to drought stress. Trop Drylands 1: 69-77. The study aimed to examine the response of upland rice varieties at germination stage on several PEG (Polyethylene Glycol) 6000 concentration levels and to determine growth characteristics, physiological changes and yield of upland rice varieties under drought stress condition in a pot experiment. The study consisted of two experiments; the first was to study germination and early growth, and the second was to study the vegetative and generative growth of upland rice under drought stress condition. Experiments I and II were conducted in a completely randomized factorial design consisted of two factors and three replications. In experiments I, the first factor was upland rice variety comprised of 10 varieties and the second factor was PEG concentration consisted of four levels. In experiment II, the first factor was upland rice varieties that responded the best to drought stress in experiment I, and the second factor was the drought stress treatment consisted of moisture content at 100, 75, 50 and 25% field capacity. The research was conducted at the Laboratory of Plant Physiology and Biotechnology and the greenhouse of Faculty of Agriculture, Sebelas Maret University (UNS) Surakarta. The results showed that the germination and vigor index decreased with increasing levels of PEG concentration. PEG concentration of 25 g L-1 of water was the most optimum for screening drought resistant upland rice. In experiment I, Towuti, Situ Patengang, Kalimutu and Gajah Mungkur varieties showed the best response to drought stress. Increased intensity of drought stress resulted in a reduction of plant height, number of tillers, dry weight, relative growth rate, leaf area, number of grains hill-1, 1000 grain weight, dry grain weight hill-1 and root dry weight. The drought stress also caused an earlier flowering date and increased percentage of empty grain. Based on the dry grain weight hill-1, Towuti exhibited a higher drought resistance level than Gajah Mungkur, Situ Patenggang and Kalimutu.

scholarly journals The Response of Soybean (glycine max (l.) Meer.) Varieties from the Tropical Region to Five Watering Regimes under a Controlled Environment

2018 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Glycine Max ◽  
Drought Stress ◽  
Stomatal Conductance ◽  
Water Supply ◽  
Dry Season ◽  
Plant Response ◽  
Tropical Region ◽  
Transpiration Efficiency ◽  
Wide Range ◽  
Glycine Max L

In some rice dominated tropical regions, such as in Indonesia, soybeans are an increasingly important dry season crop which are often exposed to periods of drought stress. The morphological and physiological responses, which could lead to some tolerance to water stress, may vary between varieties. By better understanding the plant response to drought stress and finding if these responses vary between varieties better dry season production could be achieved. An experiment was conducted to compare the response of four varieties of soybean (glycine max (l.) Meer.) to five watering regimes, with the objective of determining the response of common soybean varieies across a wide range of water supply. Plant response to water supply was measured using gas exchange measurement with the rate of photo synthesis decreasing progressively from well watered to dry conditions across the four varieties. A correlation of stomatal conductance and transpiration rate has a close relationship with photosynthetic rate, where stomatal conductance of Burangrang variety has higher value than other varieties. Varieties Burangrang and Argomulyo stomatal conductances are higher value than those of Anjasmoro and Grobogan varieties. In a deficit of water condition, the Argomulyo varieties have a higher value of transpiration efficiency and significantly different than the other three varieties. The transpiration efficiency significantly declined for treatments watered once every two or three weeks. The transpiration efficiency values of Agromulyo and Burangrang varieties were significantly higher than another varieties.

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