Silage corn has an important potential as second crop under irrigated lands of semi-arid regions. This research was conducted to determine silage yield and quality of some corn cultivars (Ada, Cadiz, Donana, Sagunto and Sakarya) grown after barley harvest using different sowing methods (direct and conventional) in 2014 and 2015 years in Eskisehir Plain. Investigated parameters were significantly different between years except for leaf ratio and neutral detergent fiber (NDF) content. In the first year, plant height, fresh forage yield, and Fleig point were higher than the second year but dry matter, crude protein, acid detergent fiber (ADF) content, cob ratio and pH were contrarily higher in the second year. Sowing method significantly affected all parameters except leaf ratio. Using direct sowing method increased cob ratio (40.3 %), dry matter (22.93 %), crude protein content (7.56 %), pH (3,76) and Fleig score (85.82) compared to conventional sowing method. Cultivars significantly varied in terms of plant height, cob ratio, dry matter, crude protein, neutral detergent fiber, acid detergent fiber, pH, and Fleig point. Considering the total silage yield and quality the domestic cultivar Ada, which seeds are common in the market, could be suggested after barley harvest for second crop production as long as sown conventionally in irrigated lands of Central Anatolia.
Boiss., Onobrychis dealbata Stocks, Onobrychis stewartii Baker, and Onobrychis cornuta (L.) Desv. under light microscopy (LM) and scanning electron microscopy (SEM) and made a comparison of shape, apertural types, and exine ornamentation of the pollen morphology of Fabaceae species. The pollen grains of Fabaceae are radially symmetrical, isopolar, mostly tricolporate, and rarely colpate or porate. The shape is commonly prolate to subprolate, or prolate-spheroidal, often prolate. Ornamentation is mostly reticulate, rarely rugulate or foveolate. These researchers defined 10 main pollen types for the family Fabaceae and placed the species Onobrychis in the Onobrychis stewartii type. The pollen morphology of 12 Onobrychis taxa [Onobrychis alba (Waldst. & Kit) Desv. subsp. alba, Onobrychis alba (Waldst. & Kit.) Desv. subsp. calcarea (Vandas) P.W.Ball, Onobrychis alba (Waldst. & Kit.) Desv. subsp. laconica (Orph. ex Boiss.
In this study, karyotype analysis of the species of Onobrychis sp. was undertaken using the squash method. The results showed that the chromosome number of Onobrychis tournefortii (Willd.) Desv., O. gracilis Besser, O. hypargyrea Boiss. is 2n = 14 and O. argyrea Boiss. subsp. argyrea Boiss., 2n = 16. The karyotype formula of O. tournefortii (Willd.) Desv. is 4m+3sm, of O. hypargyrea Boiss. and O. gracilis Besser 3m+4sm, and of O. argyrea Boiss. subsp. argyrea Boiss. 2m+ 5sm+1 st
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