Forage and seed yields mortality and nutritive value of Sesbania sesban under unimodal rainfall in Tanzania

Karachi M ., . and Matata Z ., . Forage and seed yields mortality and nutritive value of Sesbania sesban under unimodal rainfall in Tanzania. pp. 238-246. ISSN 0128-1283

Forage and seed yields mortality and nutritive value of Sesbania sesban under unimodal rainfall in Tanzania. Fifteen Sesbania sesban accessions were assessed for edible forage and seed production plant survival and fodder nutritive value over a three-year period. Plants were cut at six months to estimate edible yield while seed was harvested for up to eight months from undisturbed growth and plant survival was assessed from both cut and intact plants at ten months from transplanting. Considerable differences were recorded in all parameters examined. Edible yields varied from 0.2 to 2.0 t hasuperscript minus 1 with a major decline in production when rainfgall was less than 450 mm. Seed production varied from 7 to 483 kg per ha and was least affected by moisture stress. Plant mortality ranged 25-95 per cent (cut) and 28-82 per cent (intact) in 1991 and 28-73 per cent (cut) and 17-68 per cent (intact) in 1993 when rainfall was more than 700 mm; and 71-100 per cent (cut) and 62-96 per cent (intact) when rainfall was less than 450 mm in 1992. The nutrient contents in the forage ranged as follows: nitrogen 2.2-3.0 per cent phosphorus 0.15-0.20 per cent potassium 0.9-1.9 per cent calcium 1.0-1.4 per cent and magneisum 0.2-0.4 per cent in the dry matter. It was concluded that all nutrients except phosphorus were adequate for ruminant animal production and that inadequate moisutre was one of the major factors that limited edible forage production.

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Abstract

Forage and seed yields mortality and nutritive value of Sesbania sesban under unimodal rainfall in Tanzania. Fifteen Sesbania sesban accessions were assessed for edible forage and seed production plant survival and fodder nutritive value over a three-year period. Plants were cut at six months to estimate edible yield while seed was harvested for up to eight months from undisturbed growth and plant survival was assessed from both cut and intact plants at ten months from transplanting. Considerable differences were recorded in all parameters examined. Edible yields varied from 0.2 to 2.0 t hasuperscript minus 1 with a major decline in production when rainfgall was less than 450 mm. Seed production varied from 7 to 483 kg per ha and was least affected by moisture stress. Plant mortality ranged 25-95 per cent (cut) and 28-82 per cent (intact) in 1991 and 28-73 per cent (cut) and 17-68 per cent (intact) in 1993 when rainfall was more than 700 mm; and 71-100 per cent (cut) and 62-96 per cent (intact) when rainfall was less than 450 mm in 1992. The nutrient contents in the forage ranged as follows: nitrogen 2.2-3.0 per cent phosphorus 0.15-0.20 per cent potassium 0.9-1.9 per cent calcium 1.0-1.4 per cent and magneisum 0.2-0.4 per cent in the dry matter. It was concluded that all nutrients except phosphorus were adequate for ruminant animal production and that inadequate moisutre was one of the major factors that limited edible forage production.

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Item Type:	Article
Additional Information:	Summaries (En Ms)
AGROVOC Term:	SESBANIA SESBAN
AGROVOC Term:	SEEDS
AGROVOC Term:	SEED PRODUCTION
AGROVOC Term:	YIELDS
AGROVOC Term:	FEEDS
AGROVOC Term:	MORTALITY
AGROVOC Term:	NUTRITIVE VALUE
AGROVOC Term:	RAIN
AGROVOC Term:	SOIL FERTILITY
AGROVOC Term:	TANZANIA SESBANIA SESBAN
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:52
URI:	http://webagris.upm.edu.my/id/eprint/17905

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