Bazı kavuzsuz arpaların (Hordeum vulgare L. var. nudum Hook. f.) gelişme dönemleri ile verim ve verim öğelerinin belirlenmesi
Özet
This research has been conducted at Transitional Zone Agricultural Research Institute in Eskisehir during 2012-2013 and 2013-2014 growing seasons. The objective of the study was to determine growth stages, yield and yield components of hulless barley under Central Anatolian conditions since its breeding and production gained importance in recent years with its use for food, feed and other industrial purposes. 9 hulless barley lines and 1 registered cultivar of hulless barley were used as an experimental material. A preliminary work was performed to study the differences in early growth stages of hulless barley cultivar and lines. Lengths of roots and seedlings, oven-dry weights of roots and above-ground parts and their proportion to each other were determined in this preliminary study. In the experiment, times to emergence and heading, spikes per unit area, flag leaf area, flag leaf duration, stem and peduncle lengths, biological and grain yields per square meter, harvest index, spike length, total spikelets per spike, fertile and sterile spikelets per spike, grains per spike, grain yield per spike, thousand grain weight, test weight, protein concentration, and grains remaining on 2.5 mm sieve were determined. Since the differences between 2 years were found to be significant, results were evaluated separately for each year. According to research results hulless barley line with entry number G1 were give the highest grain yields under rainfed conditions with 217 and 225 kg/da in the first and second years, respectively. In the first year, check cultivar Ozen with 271 kg/da, the second year hulles barley line number 6 gave the highest grain yield under irrigated conditions. In terms of protein rates the first year hulless barley line number 6 with 17.46% in rainfed conditions, barley line number 9 with 16.86% in irrigated conditions obtained the highest values. The second year hulless barley line number 9 with 11.86% in rainfed conditions, line number 8 with 10.17% has come to fore front in irrigated conditions. The hulless barley line number 1, which gave the highest yields in both years, also gave the best values in time to heading, spikes per square meter, harvest index, grains per spike, and ratio of oven-dry root weight to oven-dry above-ground weight.