A linear increase in days to achene
formation was also recorded with each increment in plant population as well as nitrogen fertilizer application.
Bakhat  worked out that hybrid DKS-4040 was the best for achene
's yield (3389 kg ha-1) in Peshawar valley.Noman  reported that XIYU-12 gave maximum harvest index(24.66), where as SF-187 gave maximum achene
's yield(3891 kg ha-1) Selection of hybrids with characteristics which are best suited to our agro-ecological conditions needs emergent attention.
Groundsels are self-fertilizing plants that produce parachute-adorned achenes
that carry seeds considerable distances by wind.
We examined anthocarps with a light table to verify presence of an achene
prior to planting.
Birch Samaras 33 Betula glandulosa Dwarf birch Samaras 32 Shepherdia canadensis Buffaloberry Achenes
1 Arctostaphylos uva-ursi Kinnikinnick Seeds 9.5 Rubus sp.
With the exception of Potamogeton achenes
which were determined using the manuscript by Jessen (1955), subfossil seeds and achenes
were identified using the text by Montgomery (1977).
The work was conducted in a germination chamber with seeds (achenes
) collected at two sites and in two years in western Nebraska.
Unlike most heteromorphic composites, achene
morphology in H.
Cypsela or achene
? Refining terminology by considering anatomical and historical factors.
Harvest index (%) = Achene
yield/biological yield x 100
The oil composition of the achene
yield obtained during harvesting was determined with gas chromatography in accordance with the prescriptions of the Hungarian Standard (MSz ISO 5508: 1992).
In Cypereae, the main variations at the flower level (Table 2) relate to the presence or absence of perianth parts, the presence or lack of a gynophore, stamen number, stigma branches number, form and orientation of the ovary (and then achene
) and style base persistency.