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Regeneration Ecology Of Chrysopogon Aucheri And Cymbopogon Jwarancusa In Grasslands Of Upland Balochistan, Pakistan, Sarfraz Ahmad
Regeneration Ecology Of Chrysopogon Aucheri And Cymbopogon Jwarancusa In Grasslands Of Upland Balochistan, Pakistan, Sarfraz Ahmad
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Field experiments were conducted to investigate the seed attributes, movements and fates of dispersal units, and seedling establishment of Chrysopogon aucheri and Cymbopogon jwarancusa in a representative grassland ecosystem in upland Balochistan, Pakistan.
Cymbopogon jwarancusa had more filled and viable caryopses than Chrysopogon aucheri. Seeds (spikelets) of both species had similar morphological features. Chrysopogon aucheri had one dispersal unit, a triplet spikelet. Cymbopogon jwarancusa had four types of dispersal units: a paired spikelet, a partial raceme, an entire raceme, and a partial inflorescence comprised of two racemes.
Paired spikelets and partial racemes of Cymbopogon jwarancusa had greater …
Autecological Characteristics Of Chrysopogon Aucheri And Cymbopogon Jwarancusa, Dominant Rangeland Grasses In Baluchistan, Mohammad Saleem
Autecological Characteristics Of Chrysopogon Aucheri And Cymbopogon Jwarancusa, Dominant Rangeland Grasses In Baluchistan, Mohammad Saleem
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Controlled environment experiments were designed to study the germination, seedling development, and defoliation responses of Chrysopogon aucheri and Cymbopogon jwarancusa to better understand their autecology and potential use in range improvement programs in Baluchistan.
In experiment 1, Cymbopogon jwarancusa had greater seed fill and viability than Chrysopogon aucheri. When incubated at six different alternating temperature regimes, seeds of Cymbopogon jwarancusa had greater cumulative germination at five temperature regimes and faster germination at the colder temperature regimes than Chrysopogon aucheri.
In experiment 2, seedling shoot and root development was characterized at 15-day intervals over a 60-day period. Seedlings of …