FORAGE PRODUCTION, GRAIN-YIELD, AND PROTEIN-CONTENT IN DUAL-PURPOSE TRITICALE GROWN FOR BOTH GRAIN AND FORAGE
FORAGE PRODUCTION, GRAIN-YIELD, AND PROTEIN-CONTENT IN DUAL-PURPOSE TRITICALE GROWN FOR BOTH GRAIN AND FORAGE
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DOI：
10.2134/agronj1995.00021962008700050021x
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发表时间：
1995-09-01
期刊：
影响因子：
2.1
通讯作者：
RAMOS, JM
中科院分区：
文献类型：
--
作者：
DELMORAL, LFG;BOUJENNA, A;RAMOS, JM
世界上许多地方都使用谷类作物作为饲料和粮食生产。播期、刈割次数和生育期对牧草和谷物的产量和质量有很大影响。研究了不同播期、不同刈割频率对小黑麦（Triticosecale Witt.）1990年和1991年在西班牙南部的三个实地地点确定了这一比例。播期对牧草和粮食产量的影响小于刈割处理。刈割1次和2次使牧草产量分别降低19.1%~ 54.7%和46.6%~ 76.2%。一次扦插使株高降低5.6%~ 18.8%，两次扦插使株高降低16.4%~ 43.3%。一次刈割使籽粒蛋白质产量下降18.6 ~ 53.7%，两次刈割使籽粒蛋白质产量下降47.9 ~ 72.8%。在灌水条件下，刈割1次可使籽粒蛋白质含量增加5.6 ~ 23.3%，刈割2次可使籽粒蛋白质含量增加8.0 ~ 32.0%。在雨养环境（r = -0.824）和灌溉环境（r = -0.952）中，饲料蛋白质含量与饲料产量呈负相关，可能是由于稀释效应。四个试验中，籽粒产量与蛋白质含量呈负线性关系（r = -0.901），这可能是由于淀粉积累的差异所致。在灌溉条件下，土壤肥力高，插条不影响籽粒中蛋白质的最终百分比，但籽粒产量下降。在降雨条件下，小黑麦生长季节测量的降雨量与籽粒平均蛋白质含量呈负相关（r = -0.911）。
The use of cereal crops for both forage and grain production is practiced in many parts of the world. Quantity and quality of forage and grain with this dual use is strongly influenced by seeding date, cutting frequency and growth stage. The effect of two seeding dates and three cutting frequencies on forage production, grain yield, forage and grain protein content, and several associated characteristics of triticale (xTriticosecale Witt.) was determined in 1990 and 1991 at three field locations in southern Spain. Seeding date was less influential on forage and grain production than cutting treatments. Forage harvest significantly reduced grain yield 19.1 to 54.7% with one cutting and 46.6 to 76.2% with two cuttings. Plant height was reduced 5.6 to 18.8% with one cutting and 16.4 to 43.3% with two cuttings. Grain protein yield was reduced 18.6 to 53.7% with one cutting and 47.9 to 72.8% with two cuttings. Grain protein content increased 5.6 to 23.3% with one cutting and 8.0 to 32.0% with two cuttings at the rainfed sites, but not under irrigated conditions. Forage protein content was negatively related to forage yield both in rainfed (r = -0.824) and irrigated (r = -0.952) environments, probably due to a dilution effect. An inverse linear relationship was found between grain yield and protein content (r = -0.901) in the four rainfed experiments, probably from differences in accumulation of starch. Under irrigated conditions and high soil fertility, cuttings did nut affect the final percentage of protein in the grain, although grain yield decreased. An inverse relationship was found between the rainfall measured during the triticale growing season and the mean protein content in the grain (r = -0.911) under rainfed conditions.