孟加拉国两种不同纳皮尔杂交品种的牧草生长、生物量产量和养分含量

S. Ahamed, M. Rakib, M. Jalil
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引用次数: 3

摘要

采用2×3析因试验对两个品种进行比较;孟加拉国畜牧研究所在饲料生长、生物量产量和营养品质方面开发了Napier杂交-3 (BN-3) (Pennisetum purpureum)和Pakchong-1 (Pennisetum purpureumx P. glaucum)。栽培品种分为03个块、03个重复,分别在40、50和60天的03个扦插期收获。每个品种小区大小为25 m2 (5m × 5m),每个小区扦插25根,每根扦插2个健康节,株距为(1×1) m。品种和刈割期对株高、分蘖叶数、叶片DM产量和叶茎比有显著影响。BN-3的株高(P<0.01)和每分蘖叶片(P<0.05)均最高,而pak崇1的CP、LSR (P<0.05)、分蘖直径(P<0.01)和最低节直径(P<0.01)均最高。从DM %、DM产量和CP产量看,BN-3在第一次造林后50 d扦插效果较好,而pak崇1在第一次造林后60 d扦插效果较好。从饲草的角度来看,由于Pakchong-1的DM、LSR和CP产量更高,因此它与BN-3相比似乎没有什么优势。爆炸。j .似的。科学》2021。50 (1): 43-49
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Forage growth, biomass yield and nutrient content of two different hybrid Napier cultivars grown in Bangladesh
A 2×3 factorial experiment was conducted to compare two cultivars; Bangladesh Livestock Research Institute developed Napier hybrid-3 (BN-3) (Pennisetum purpureum) and Pakchong-1 (Pennisetum purpureum× P. glaucum) in terms of forage growth, biomass yield, and nutritional quality. Cultivars were cultivated in 03 blocks with 03 replicates and were harvested at 03 cutting periods (40, 50, and 60 days). Plot sizes for each cultivar were 25 m2 (5m × 5m), and in every plot, twenty-five stem cuttings with two healthy nodes per cutting were planted with (1×1) m spacing. The effects of cultivar and cutting period were significant on plant height, leaves per tiller, leaf DM production, and leaf stem ratio (LSR). Highest plant height (P<0.01) and leaves per tiller (P<0.05) were consistently produced by BN-3, while Pakchong-1 produced the highest amount of CP (P<0.05), LSR (P<0.05), tiller diameter (P<0.01) and diameter of the lowest node (P<0.01). Based on the %DM, DM yield, and CP yield, BN-3 performed better cutting at 50 days after the first plantation, but Pakchong-1 performed better cutting at 60 days after the first plantation. From the forage standpoint, Pakchong-1 seems to have little advantages over BN-3 because of its higher DM, LSR, and CP production. Bang. J. Anim. Sci. 2021. 50 (1):43-49
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