Abstract Detail



Physiology

Mukhtar, Fatimah [1], mohammad , maryam [2].

Effects of Liquid Nitrogen Fertilizer and Cytokinin on Senescence, Harvest and Total Yield of 2 Cowpea Varieties (Vignaunguiculata(L.) Walp).

The effects of liquid nitrogen fertilizer (150% N) and Benzyl Amino Purine (200ppm BAP) were investigated on senescence, yield and Nutrients mobilization in two cowpea varieties in the rainy and dry seasons. The study was conducted in a screen house at the University of Lagos, Nigeria ( 6o27?1, 3o45? E). The duration of the study was between August 2012 –January 2013. The experimental design used was completely randomized block design. The four treatments (nitrogen fertilizer, BAP, nitrogen fertilizer and BAP combination in 3:1 ratio and the control) were applied through foliar spray at 3, 6, and 9 weeks after planting and data was collected on time of senescence and yield. The days to 50% senescence, 90% senescence and death of the plants was earlier in IT89KD – 288 than in Kanannado, while senescence started earlier in plant treated with liquid nitrogen fertilizer (15%N). For the first harvest, variety IT89KD – 288 had higher number of pods (10), number of seeds (13), and length of pods (15.8 cm) than kanannado that had 8.0, 12.0, 14.68cm, 3.17 and 18.53 for number of pods, number of seeds, length of pods, weight of grains per pod and weight of grains per plant respectively. while at the second harvest kanannado had higher number of pods (5), number of seeds (10), length of pods (12.12 cm), weight of grains per pod (2.68) and weight of grains per plant (12.03) than IT89KD – 288 that had 4.0, 9.0, 11.31 cm, 2.05, 11.27 for number of pods, number of seeds, length of pods, weight of grains per pod and weight of grains per plant respectively. The combined treatment induced significantly greater yield than the other treatments. Yields were higher in the rainy season than the dry season. The longer the duration of senescence, the higher the grain yield at the second harvest, which therefore confirmed a direct relationship between senescence, harvest time and yield among cowpea varieties


1 - Bayero University, Department Of Biological Sciences, P.M.B. 3011, Kano, PMB 3031, Nigeria
2 - federal university dutse , botany , jigawa state , Nigeria

Keywords:
Cowpea
Benzyl Amino Purine
Nitrogen
Fertilizer.

Presentation Type: Oral Paper
Session: 44, Physiology
Location: 114/Mayo Civic Center
Date: Wednesday, July 25th, 2018
Time: 3:00 PM
Number: 44007
Abstract ID:72
Candidate for Awards:None


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