Native Plants to Arid Areas: A Genetic Reservoir for Drought-Tolerant Crops

2020 ◽  
Author(s):  
Ricardo Trejo-Calzada ◽  
Aurelio Pedroza-Sandoval ◽  
Jesus G. Arreola-Avila ◽  
Fabian García-González
Keyword(s):  
Native Plants ◽  
Arid Areas ◽  
Drought Tolerant

scholarly journals Enhancing food security in arid areas of Pakistan through newly developed drought tolerant and short duration mustard (Brassica juncea L.) Canola

Genetika ◽  
2018 ◽  
Vol 50 (1) ◽  
pp. 21-31
Author(s):  
Hafiz Mustafa ◽  
E Ejaz-Ul-Hasan ◽  
Tariq Mahmood ◽  
Amir Hameed ◽  
Qurban Ali
Keyword(s):  
Food Security ◽  
Brassica Napus ◽  
Drought Tolerance ◽  
Brassica Juncea ◽  
Short Duration ◽  
Seed Yield ◽  
Edible Oil ◽  
Arid Areas ◽  
Drought Tolerant ◽  
Canola Quality

Food security is the crucial global issue, especially in developing countries like Pakistan. Since edible oil is an essential food item, its persistent paucity in the country and huge import for meeting domestic requirements, has attained it second largest import item after petroleum products. The aim of present study is qualitative and quantitative evaluation of newly developed short duration and drought tolerant canola quality Brassica juncea lines ZBJ-06012 and ZBJ-08051 to overcome the unfavorable edible oil situation in the country. Thirteen lines were evaluated in randomized complete block design (RCBD) for seed yield, oil quality, maturity period and drought tolerance under different agro-climatic zones both in irrigated and arid areas across the Punjab province at eight locations in Micro Yield Trials during Rabi season 2012-13 and 2013-14. Presently, grown non-canola mustard varieties Khanpur Raya and Anmol Raya were used as check varieties. Brassica napus cultivars Punjab canola and Faisal canola were also included in the trials for comparison study of mustard and rapeseed genotypes. Data for all traits under observation was analyzed through Principle Component Analysis (PCA) to evaluate the best performing lines in irrigated as well as in rain fed areas. Principal Component Analysis showed first 2 PCs having Eigen value >1 explaining 76.4% and 72% of the total variation at irrigated areas and rain fed areas respectively. The mean seed yield was also compared by Least Significant Difference (LSD) test to study the significance at 5% probability level. Canola quality B. juncea lines ZBJ-06012 and ZBJ-08051 have shown good adaptability, early maturity, non-shattering, disease and drought tolerance traits with high yield potential in comparison with presently grown Brassica napus cultivars ?Punjab Canola? and ?Faisal Canola?. Due to these prominent features, these lines have a great scope for motivating farmers to grow canola quality B. juncea when compared with B. napus and non-canola B. juncea. Future challenges demand further development of high yielding, short duration and aphid tolerant mustard cultivars having high oil content and canola quality. There is a great potential of exploiting genetic variability in the existing B. juncea material to achieve the aforesaid goals by using conventional plant breeding techniques.

scholarly journals Responses of Sphagneticola trilobata, Sphagneticola calendulacea and Their Hybrid to Drought Stress

2021 ◽  
Vol 22 (20) ◽  
pp. 11288
Author(s):  
Qilei Zhang ◽  
Jundong Huang ◽  
Weiqian Ke ◽  
Minling Cai ◽  
Guangxin Chen ◽  
...  
Keyword(s):  
Drought Stress ◽  
South China ◽  
Invasive Plant ◽  
Photochemical Efficiency ◽  
Physiological Data ◽  
Arid Areas ◽  
Population Number ◽  
Drought Tolerant ◽  
Sphagneticola Calendulacea ◽  
Maximum Photochemical Efficiency

Sphagneticola trilobata is an invasive plant in South China. A hybrid between S. trilobata and Sphagneticola calendulacea (a native related species) has also been found in South China. The drought resistance of S. calendulacea, S. trilobata and their hybrid was studied in this paper. Under drought stress, the leaves of S. trilobata synthesized more abscisic acid (ABA) than those of the other species to reduce stomatal opening and water loss. The activities of antioxidant enzymes were the highest in S. trilobata and the lowest in S. calendulacea. The leaves of S. calendulacea suffered the most serious damage, and their maximum photochemical efficiency was the lowest. RNA-sequencing ware used to analyze the expression levels of genes in ABA, antioxidant enzyme, sugar and proline synthesis and photosynthesis pathways. Further real-time PCR detection verified the RNA-sequence results, and the results were in accordance with the physiological data. The results showed that S. trilobata was the most drought tolerant, and the drought tolerance of the hybrid did not show heterosis but was higher than S. calendulacea. Therefore, compared with S. trilobata and the hybrid, the population number and distribution of S. calendulacea may be less in arid areas.

scholarly journals Switching to Drought-Tolerant Plants Could Alter Urban Climates

Eos ◽  
2016 ◽  
Vol 97 ◽  
Author(s):  
Sarah Stanley
Keyword(s):  
Los Angeles ◽  
Native Plants ◽  
Drought Tolerant ◽  
Tolerant Plants

In Los Angeles, replacing lawns with native plants that need less water could lead to hotter days and cooler nights.

scholarly journals 425 Use of Geographic Information System (GIS) to Document Plant Populations for Germplasm Collections

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 517E-517
Author(s):  
Sandra A. Balch ◽  
Cynthia B. McKenney ◽  
Dick L. Auld
Keyword(s):  
Native Plants ◽  
Wild Plant ◽  
Collection Site ◽  
Plant Populations ◽  
Seed Collection ◽  
Germplasm Collections ◽  
Drought Tolerant ◽  
Wild Plant Species ◽  
Collection Data ◽  
Coordinate Data

Geographically referenced information is an important aspect in the collection of wild plant species. It provides detailed information about the collection site as well as a method of relocating plant populations. In one project, native plants were collected and analyzed for the presence of gamma-linolenic acid, a valuable fatty acid used in medicinal products. In a second project, native wild-flowers were collected and evaluated for potential use as drought-tolerant ornamental landscape plants. All native plants were initially tagged in the spring while in bloom. Each collection site was revisited later for seed collection. Due to a lack of landmarks in the collection area, a GeoExplorer Global Positioning System (GPS) unit was used to capture coordinate data of latitude, longitude, and altitude. This was added to the passport file of each collection site. Differential correction was used to increase accuracy of GPS data to within a range of 10 m. ARC/INFO software was used to assemble, store, and display collection data in map form. This method has been used to document over 300 accessions and identify areas with a high frequency of plants possessing desired characteristics.

Native Plants for Recreation and Conservation in Mexico

1995 ◽  
Vol 13 (1) ◽  
pp. 84-89 ◽  
Author(s):  
Ileana Espejel ◽  
Lina Ojeda
Keyword(s):  
Native Plants

Raising Native Plants in Nurseries: Basic Concepts

2013 ◽  
Vol 14 (1) ◽  
pp. 71-71 ◽  
Author(s):  
R. K. Dumroese ◽  
T. D. Landis ◽  
T. Luna
Keyword(s):  
Native Plants ◽  
Basic Concepts
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