西藏小麦资源在都江堰试种的表现及评价

对125份来源于西藏的小麦地方品种进行农艺性状分析和评价。结果显示，西藏小麦植株高度总体偏高，少数适中。分蘖数多数在10个以下，少数偏多。穗长、小穗数的单位长度着生的小穗数存在明显差异，存在一些密穗类型和多小穗类型。多数小麦品种穗粒数不少，但千粒重明显偏低。性状相关分析表明，随着分集数增多、穗长增长、小穗数增多，株高有增加的趋势，而株高的增加又导致了千粒重的降低。小穗数多其穗长通常比较长。中时西藏小麦资源进行了评价、利用方式进行了探讨、在都江堰与西藏表现差异的原因进行了分析。

Evaluation of Agronomical Characters of Wheat Accessions from Tibet

One hundred and twenty five landraces of common wheat from Tibet were evaluated for their agronomic characters. The resucts showed that the plant height of most accessions was too high to be used for breeding program and the tiller number of most accessions was less than ten. Obvious differences were found in spike length, number of spikelets and per length spikelet and some special types such as musti-spikelet types and dense spike types were included. Correlation analysis of characters shown that the increase in the number of tillers and spikelet per spike and the length of spike would cause the increase in the plant height and the decrease of 1000-grian weight. In most cases, the accessions with the longer spike length would always have more spikelet.Moreover, the utilization porential, strategies and the reason for different performance of Tibetan waeet in Dujaingyan,Sichuan also are discussed.