WATER-SOLUBLE CARBOHYDRATES IN PERENNIAL RYEGRASS BREEDING .3. RELATIONSHIPS WITH HERBAGE PRODUCTION, DIGESTIBILITY AND CRUDE PROTEIN-CONTENT
WATER-SOLUBLE CARBOHYDRATES IN PERENNIAL RYEGRASS BREEDING .3. RELATIONSHIPS WITH HERBAGE PRODUCTION, DIGESTIBILITY AND CRUDE PROTEIN-CONTENT
复制标题
DOI：
10.1111/j.1365-2494.1989.tb01942.x
复制
发表时间：
1989-12-01
影响因子：
2.4
通讯作者：
HUMPHREYS, MO
中科院分区：
文献类型：
--
作者：
HUMPHREYS, MO
采用间隔试验和小区试验，对水溶性碳水化合物含量（WSC）存在遗传差异的多年生黑麦草的干物质消化率（DMD）、粗蛋白（CP）和干物质生产率（DM）进行了测定。在100个加入种植的间隔植物似乎有更多的遗传变异WSC比DMD或CP。在间隔植株和样地中，WSC与DMD始终呈正相关，与CP呈负相关，与DM相关性很小。CP和DMD之间的相关性是相当不一致的，一些CP和DM之间的负相关性，这表明环境效应，特别是在氮的可用性，影响CP比WSC含量。结果表明，在不牺牲产量的情况下，利用高WSC含量的黑麦草开发具有提高饲用价值的品种具有相当大的潜力。
Perennial ryegrasses showing genetic differences in water-soluble carbohydrate content (WSC) were assessed for dry matter digestibility (DMD), crude protein (CP) and dry matter production (DM) in both spaced plant and small plot trials. Among 100 accessions grown as spaced plants there appeared to be more genetic variation for WSC than for DMD or CP. In both spaced plants and plots, WSC was consistently positively correlated with DMD, negatively correlated with CP and showed little correlation with DM. Correlations between CP and DMD were rather inconsistent and some negative correlations were obtained between CP and DM, suggesting that environmental effects, particularly with regard to nitrogen availability, affected CP more than WSC content. It was concluded that there is considerable potential for using ryegrasses with high WSC contents to develop varieties with improved feeding value without sacrificing production.