Arid
DOI10.1016/j.fcr.2007.05.006
Determinants of ruminant nutritional quality of pearl millet [Pennisetum glaucum (L.) R. Br.] stover - I. Effects of management alternatives on stover quality and productivity
Bidinger, F. R.; Bluemmel, M.
通讯作者Bluemmel, M.
来源期刊FIELD CROPS RESEARCH
ISSN0378-4290
出版年2007
卷号103期号:2页码:119-128
英文摘要

The paper investigates management and cultivar type effects on pearl millet stover yield and fodder quality. Sixteen pearl millet cultivars available to farmers in India were selected to represent three cultivar types: (1) traditional landrace germplasm from the arid/semi-arid millet production zones, (2) improved dual-purpose (grain and stover) open-pollinated varieties incorporating differing amounts of traditional landrace germplasm and (3) commercial, grain-type F I hybrids, bred for use in the arid/semi-arid zone. The cultivars were grown for 2 years (2000 and 2001) at high fertility (HF: 65 kg N ha(-1) and 18 kg P ha(-1)) and low fertility (LF: 21 kg N ha(-1) and 9 kg P ha(-1)). Within each fertility level high (HP) and low (LP) plant population densities were established by varying sowing rate and then thinning to the target populations (HP: 11 plants m(-2) and LP: 5 plants m(-2)). Stover fodder quality traits (nitrogen concentration, sugar content, in vitro digestibility and metabolizable energy content) were analyzed using a combination of conventional laboratory analysis and near infrared spectroscopy. In general, fertility level and cultivar type had strong effects on grain and stover yields, and on a range of stover nutritional quality traits, but with significant year interactions. In contrast, the effect of population density on these variables was largely insignificant. Higher fertilizer application significantly increased grain and stover yields and stover nitrogen concentration, in vitro digestibility and metabolizable energy content. As a result, fertilization resulted in significant increases in the yields of both digestible and metabolizable stover. Landrace cultivars as a group produced higher quality fodder than modern hybrids, but at a significant cost in grain yield. Dual-purpose, open-pollinated cultivars were generally intermediate between the landraces and hybrids, in terms of both stover quality and grain yield, but produced the highest yields of both digestible and metabolizable stover. The paper discusses the implications of these findings for Indian pearl millet farmers with various resource levels and farming objectives. (c) 2007 Elsevier B.V. All rights reserved.


英文关键词pearl millet stover productivity stover nutritional quality management effects cultivar effects
类型Article
语种英语
国家India
收录类别SCI-E
WOS记录号WOS:000249331200004
WOS关键词PLANT-POPULATION ; CROP RESIDUES ; IMPROVEMENT ; YIELD ; OPPORTUNITIES ; SELECTION ; SORGHUM ; GROWTH
WOS类目Agronomy
WOS研究方向Agriculture
来源机构International Crops Research Institute for the Semi-Arid Tropics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/154207
作者单位(1)ILRI, Patancheru 502324, Andhra Pradesh, India;(2)Int Crops Res Inst Semi Arid Trop, Patancheru 502324, Andhra Pradesh, India
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GB/T 7714
Bidinger, F. R.,Bluemmel, M.. Determinants of ruminant nutritional quality of pearl millet [Pennisetum glaucum (L.) R. Br.] stover - I. Effects of management alternatives on stover quality and productivity[J]. International Crops Research Institute for the Semi-Arid Tropics,2007,103(2):119-128.
APA Bidinger, F. R.,&Bluemmel, M..(2007).Determinants of ruminant nutritional quality of pearl millet [Pennisetum glaucum (L.) R. Br.] stover - I. Effects of management alternatives on stover quality and productivity.FIELD CROPS RESEARCH,103(2),119-128.
MLA Bidinger, F. R.,et al."Determinants of ruminant nutritional quality of pearl millet [Pennisetum glaucum (L.) R. Br.] stover - I. Effects of management alternatives on stover quality and productivity".FIELD CROPS RESEARCH 103.2(2007):119-128.
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