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首页> 外文期刊>African Journal of Biotechnology >Yields and protein content of two cowpea varieties grown under different production practices in Limpopo province, South Africa
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Yields and protein content of two cowpea varieties grown under different production practices in Limpopo province, South Africa

机译：南非林波波省不同生产方式下种植的两种cow豆品种的产量和蛋白质含量

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A three-factorial field experiment was carried out at the University of Limpopo experimental Research farm during two planting seasons (2005/06 and 2006/07) to examine the effect of cowpea-leaf removal on cowpea performance. Three treatment factors namely cowpea varieties (Pan 311 and Red Caloona), cropping systems (sole and intercropping) and cowpea-leaf pruning regimes (pruned and un-pruned) were combined and arranged in a randomized complete block design (RCBD). Sole cowpea and sweet corn treatments were included and all treatments replicated four times.? Fully expanded cowpea leaves on all cowpea plants in the two middle rows were harvested once at seven weeks after seed sowing prior to flowering. Growth and yield component data were collected from component crops while the protein content of harvested leaves and green pods as well as those of grains and the fodders at harvest were determined. The results of the study revealed that cowpea leaf protein content ranged from 24.1 to 28.1% and 26.0 to 30.7% for Red Caloona and Pan 311, respectively. The protein content of green cowpea pods obtained from Pan 311 cowpea variety ranged from 18.8 to 25.1% while that of Red Caloona varied between 17.9 and 20.7%. Similarly, the protein content of the fodder obtained after grain harvest varied between 9.3 and 9.4% and 9.9 and 12.3%, respectively for Pan 311 and Red Caloona during the two seasons.? The protein content of cowpea grain obtained from intercropped plots (23.7 to 26.3%) was similar to that from sole plots (23.7 to 25.7%). In 2005/06, grain yield was 1704 kg ha-1?and 1480 kg ha-1?respectively for Pan 311 and Red Caloona while 1291 and 512 kg ha-1?were obtained for Pan 311and Red Caloona, respectively in 2006/07. There was a significant season x varietal effects on pod and seed protein content. These results reveal that Pan 311 would be better suited for both vegetable and grain production purposes for human consumption while Red Caloona would better serve as a fodder crop for animal production. The results also show that neither cropping system nor cowpea leaf pruning did have consequential effects on the nutritional value of cowpea plant parts and grains.
机译：在两个种植季节（2005/06和2006/07）期间，在林波波大学实验研究农场进行了三要素田间试验，以研究removal豆叶片去除对cow豆性能的影响。结合treatment豆品种（Pan 311和Red Caloona），种植系统（单一和间作）和cow豆叶修剪制度（修剪和未修剪）这三种处理因素，并以随机完整块设计（RCBD）进行安排。包括独家cow豆和甜玉米处理，所有处理重复四次。种子播种后七周，开花前七周收获一次，中间两行所有all豆植物上的完全展开的leaves豆叶片。从组成作物收集生长和产量组成数据，同时确定收获时叶片和嫩荚的蛋白质含量以及谷物和饲料的蛋白质含量。研究结果表明，红卡鲁纳和潘311的cow豆叶片蛋白质含量分别为24.1％至28.1％和26.0％至30.7％。从Pan 311 pea豆品种获得的绿色cow豆荚的蛋白质含量介于18.8％至25.1％，而红色Caloona的蛋白质含量介于17.9％至20.7％之间。同样，在两个季节中，Pan 311和Red Caloona的谷物收成后的饲料蛋白质含量分别在9.3％和9.4％，9.9％和12.3％之间变化。间作地块获得的of豆籽粒蛋白质含量（23.7％至26.3％）与单独地块获得的of豆籽蛋白含量相似（23.7％至25.7％）。在2005/06年度，潘311和红色卡洛纳的谷物单产分别为1704千克ha-1和1480千克ha-1，而2006/07年度潘311和红卡洛纳的谷物单产分别为1291和512千克ha-1。 。季节对豆荚和种子蛋白质含量有明显的影响。这些结果表明，Pan 311更适合用于人类食用的蔬菜和谷物生产，而Red Caloona则更适合作为动物生产的饲料作物。结果还表明，种植系统和cow豆叶修剪均未对of豆植物部位和谷物的营养价值产生影响。

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