The superiority of higher plant population for growth (leaf area index, leaf area duration, crop growth rate and net assimilation rate), development (days to germination, days to flowering, days to achene
formation and days to physiological maturity), yield and yield components might be due to the fact that, there may be more efficient consumption of the input resources (nutrients, space, water and light) as compared to low plant population.
Highest number of achene
's h ad-1 and 1000- achene
;s weight was noted by Hybrids S-278 and Hysun-33while hybrid FH-337 gave minimum number of achene
's head-1 and lowest 1000- achene
But even the botanically cognizant casually refer to both true seeds and "seeds with accessories" simply as "seeds." Because practitioners in the sciences need precision when speaking or writing formally, the botanical term of choice for both true seeds as well as those carrying extra parts is disseminule, a catchall term that covers all variations of reproductive packages, botanically known by terms such as aril, achene
, capsule, caryopsis, nut, drupe, and true seed (Figure 4).
Kaye (1999) discovered that removing the achene
from the winged portion of the anthocarp and then subjecting the achene
to alternating temperatures and photoperiods resulted in the highest percentage of germination.
Fruit an achene
. Membranaceous pericarp parcially fused to the seed.
); notes relevant to the interpretation of the seed weight data" (Royal Botanical Gardens, n.d.).
Effect of basal and side dressed phosphorus on the achene
yield and pyrethrins concentration in the achenes
of Pyrethrum (Tanacetum cinerariifolium) and on soil and plant phosphorus.
Samples SR05-DH1 and SR05-DH2 contain only one achene
from Ranunculus sp.
[46.] Piras MR, Magnano I, Canu ED, Paulus KS, Satta WM, Soddu A, Conti M, Achene
A, Solinas G, Aiello I.
The effects of achene
dimorphism on the dispersal in time and space in Crepis sancta (Asteraceae).
Description: Opercle of achene
keeled and winged, ventral margin wavy, beak ventral.