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Multitraits evaluation of Pakistani ecotypes of berseem clover ( Trifolium alexandrinum L.) under full-irrigation and water restriction conditions

Published on May 12, 2015in Journal of applied botany and food quality1.11
· DOI :10.5073/JABFQ.2015.088.018
Muhammad Mubashar Hussain1
Estimated H-index: 1
,
Saeed Rauf6
Estimated H-index: 6
(UOS: University of Sargodha)
+ 3 AuthorsPhilippe Monneveux8
Estimated H-index: 8
(CIP: International Potato Center)
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Abstract
Summary Berseem clover ( Trifolium alexandrinum L.) is an important forage crop in Pakistan and many ecotypes are grown across the country. Its yield is however frequently affected by insufficient irrigation due to unavailability of water. In the present study, twenty Pakistani ecotypes of berseem clover have been evaluated in lysimeters under full irrigation and water restriction conditions. In the full irrigation treatment soil humidity was maintained at field capacity, while in the water restriction treatment water was only supplied after severe wilting and to maintain humidity in the deep profile of the soil. Assessed traits included forage yield, calculated as the sum of the biomass harvested at 70 and 110 DA days after emergence, and morpho-physiological traits. Significant effects of water restriction were noted on yield, leaf gas exchange parameters, canopy temperature and osmotic adjustment. Most morpho-physiological traits had higher broad sense heritability than forage yield, both under full irrigation and water restriction conditions. Water restriction increased genetic and phenotypic variability and heritability of most traits under study. Under these conditions forage yield was positively associated to leaf temperature and recovery rate index and, under full irrigation, to net photosynthetic rate, canopy depression temperature and leaf area. The possible use of these traits as indirect selection criteria in berseem clover breeding programs is discussed. Some ecotypes with favorable traits such as high forage yield potential, good adaptation to water restriction and aptitude to multiple harvesting have also been identified.
  • References (24)
  • Citations (1)
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References24
Newest
Published on Jan 1, 2014in Trends in Plant Science14.01
J. L. Araus49
Estimated H-index: 49
(University of Barcelona),
Jill E. Cairns23
Estimated H-index: 23
(CIMMYT: International Maize and Wheat Improvement Center)
Constraints in field phenotyping capability limit our ability to dissect the genetics of quantitative traits, particularly those related to yield and stress tolerance (e.g., yield potential as well as increased drought, heat tolerance, and nutrient efficiency, etc.). The development of effective field-based high-throughput phenotyping platforms (HTPPs) remains a bottleneck for future breeding advances. However, progress in sensors, aeronautics, and high-performance computing are paving the way. ...
Published on Jan 1, 2014in Crop Science1.64
Emily Merewitz11
Estimated H-index: 11
(MSU: Michigan State University),
Faith C. Belanger27
Estimated H-index: 27
(RU: Rutgers University)
+ 2 AuthorsStacy A. Bonos15
Estimated H-index: 15
(RU: Rutgers University)
Published on Sep 1, 2013in Photosynthetica2.37
Tanveer Kalyar3
Estimated H-index: 3
,
Saeed Rauf6
Estimated H-index: 6
+ 2 AuthorsZafar Iqbal9
Estimated H-index: 9
Heat stress is a major production constraint of sunflower worldwide. Therefore, various populations (parental, F1, F2, F3, and plant progenies) of sunflower were screened for leaf gas-exchange traits with the objectives to formulate selection criteria of heat resistance and development of heat-resistant lines. Initial screening and F2 seeds exposed to heat stress (45°C) resulted in the development of an adapted F2 population that showed leaf gas-exchange and morphological traits better than the ...
Published on Apr 1, 2012in Journal of Integrative Plant Biology3.82
Benhilda Masuka3
Estimated H-index: 3
(CIMMYT: International Maize and Wheat Improvement Center),
J. L. Araus49
Estimated H-index: 49
(University of Barcelona)
+ 2 AuthorsJill E. Cairns23
Estimated H-index: 23
(CIMMYT: International Maize and Wheat Improvement Center)
[ Jill E. Cairns ] The ability to quickly develop germplasm having tolerance to several complex polygenic inherited abiotic and biotic stresses combined is critical to the resilience of cropping systems in the face of climate change. Molecular breeding offers the tools to accelerate cereal breeding; however, suitable phenotyping protocols are essential to ensure that the much-anticipated benefits of molecular breeding can be realized. To facilitate the full potential of molecular tools, greater ...
Published on Jan 1, 2012in Frontiers in Physiology3.20
Roberto Tuberosa46
Estimated H-index: 46
(UNIBO: University of Bologna)
Improving crops yield under water-limited conditions is the most daunting challenge faced by breeders. To this end, accurate, relevant phenotyping plays an increasingly pivotal role for the selection of drought-resilient genotypes and, more in general, for a meaningful dissection of the quantitative genetic landscape that underscores the adaptive response of crops to drought. A major and universally recognized obstacle to a more effective translation of the results produced by drought-related st...
Published on Jan 1, 2012
Hernán Acuña4
Estimated H-index: 4
,
Luis Inostroza4
Estimated H-index: 4
,
Gerardo Tapia3
Estimated H-index: 3
The growing demand throughout the world for good quality soils to expand more profitable productive systems (crops, fruits and vineyards) is displacing forage crop production to marginal environments that often have soils with low fertility, pH problems, poor drainage and subject to periods of drought. The situation is similar in Chile, but the problem is exacerbated by the effects of global climate changes, with an estimated decline in precipitation of 40 percent and an increase of 2-4oC in con...
Published on Jan 1, 2011
Pasquale Martiniello1
Estimated H-index: 1
,
Jaime A. Teixeira da Silva1
Estimated H-index: 1
This review provides an updated perspective on the effect of agronomic management and weather conditions on biological pathways in the organs of plants used for herbage seed production. Biochemical pathways from seedling to herbage harvest or seed production in forage crop species are emphasized. The review reports the effect of weather conditions and agronomic practices on physiological processes in plants growing during forage and seed yield production in Mediterranean or Mediterranean-like en...
Published on Jan 1, 2008in Agronomy Journal1.80
Ioannis Vasilakoglou16
Estimated H-index: 16
,
Kico Dhima18
Estimated H-index: 18
Berseem clover (Trifolium alexandrinum L.) should be intercropped with cereals for forage quality improvement, livestock bloat avoidance, and fertilizer requirements reduction. A 2-yr field study was conducted using a cultivar ofberseem clover and two barley (Hordeum vulgare L.) cultivars as sole crops compared to six berseem clover-barley intercrops planted at three seeding rates (250-338, 500-225, or 750-113 seeds m -2 ). The objective of the study was to compare forage and protein yield produ...
Published on Jun 1, 2007in The Journal of Agricultural Science1.33
J. P. Brennan1
Estimated H-index: 1
(New South Wales Department of Primary Industries),
Anthony G. Condon34
Estimated H-index: 34
(CSIRO: Commonwealth Scientific and Industrial Research Organisation)
+ 1 AuthorsMatthew P. Reynolds61
Estimated H-index: 61
(CIMMYT: International Maize and Wheat Improvement Center)
SUMMARY Physiological research has shown that measurements on small plots of stomatal conductance, canopy temperature depression (CTD) or carbon isotope discrimination may be useful for screening breeding populations for yield potential, prior to the execution of expensive replicated yield trials. Such indirect selection criteria may be very effective as lower cost alternatives for estimating genetic gain for complex characteristics such as yield that are relatively expensive to measure accurate...
Cited By1
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Published on Jan 1, 2016in Crop Science1.64
Sidique Javed (UOS: University of Sargodha), Saeed Rauf6
Estimated H-index: 6
(UOS: University of Sargodha)
+ 3 AuthorsMuhammad Shahzad11
Estimated H-index: 11
Published on Jan 1, 2016
Saeed Rauf6
Estimated H-index: 6
(UOS: University of Sargodha),
D. Sienkiewicz-Paderewska2
Estimated H-index: 2
(Warsaw University of Life Sciences)
+ 3 AuthorsMaria Kausar2
Estimated H-index: 2
(UOS: University of Sargodha)
Forages are integral components of grassland and pasture agro-ecosystem. They are the major source of feed and nutrition for livestock. As primary producers, they are converted by livestock into secondary production in the food chain. Forage breeding is a complex process involving plant morpho-physiological aspects (perenniality, mode of reproduction, mating systems) and aberrant plant-environment correlations affecting plant performance under various sward conditions. The ultimate aim of forage...
View next paperEVALUATION OF ANNUAL CLOVER ECOTYPES BY USING DROUGHT TOLERANCE INDICES