RESPONSE OF TOMATO (SolanumlycopersiconMill) VARIETIES TO IRRIGATION INTERVAL AND STAND DENSITY IN NORTHERN GUINEA AND SUDAN SAVANAH OF NIGERIA
RESPONSE OF TOMATO (SolanumlycopersiconMill) VARIETIES TO IRRIGATION INTERVAL AND STAND DENSITY IN NORTHERN GUINEA AND SUDAN SAVANAH OF NIGERIA
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Date
2021-03
Authors
USMAN, Bara’u Munkaila
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Abstract
Field trials were carried out at Institute for Agricultural Research (IAR) Ahmadu Bello University
farms in Samaru, Zaria and Irrigation Research Station Kadawa,Kano state during 2017/2018 dry
seasons to study the response of tomato varieties to irrigation intervals and stand densities.
Treatments consisted of two tomato varieties (UC82-B and ROMA-VF), three irrigation intervals
(5, 10 and 15 days) and two stand densities (1 and 2 plants stand-1) which were arranged
factorialyin a Split Plot Design with irrigation interval in the main plot while variety and stand
density in the sub plot replicated four times. The results revealed that variety ROMA-VF recorded
significantly taller plants with higher value for dry matter, numbers of leaves, and branches than
UC82-B at Samaru. The same variety took longer days to attain 50% flowers whereas UC82-B
recorded significantly superior yield parameters (fruit diameter, fruit weight per plant, total fruit
yield in tons ha-1, marketable yield and total fruit number) in both locations. Application of water
had significant effect especially on most growth parameters assessed at Samaru. Increasing
irrigation interval from 5, 10 and 15 days linearly decreased plant height, number branch and leaf
area index (LAI) at all sampling period in Samaru. Linear decrease in fruit weight per plant,fruit
diameter and fruit yield was observed with increasing irrigation interval from 5 to 15 days at
Samaru. Some parameters were not significantly influence by varying irrigation interval at
Kadawa. The effect of stand density was significant on parameters such as number of branch
7WAT, leaf area index, leaf area, dry matter, CGR, RGR, days to 50% flowering, average fruit
weight, total fruit weight, and total number of fruits. Higher values of most yield parameters were
obtained with 2 plant stand-1 in both locations. At Samaru, there was a significant positive
correlation between tomato fruit yield and all the yield and growth parameters assessed except dry
matter, fruit diameter and unmarketable fruit yield. Similarly, the relationship between marketable fruit yield was also significant and positive with all the parameters assessed except with dry
matter which had no significant correlation. However, the unmarketable fruit yield had positive
and significant correlation with only plant height but no correlation with other parameters
assessed. At Kadawa, the relationship between tomato fruit yield was positive and highly
significant only with marketable (0.997), and unmarketable fruit yield (0.573). Similarly,
relationship between marketable fruit yield was only found significant and positively correlated
with dry matter and unmarketable fruit among all the yield and growth parameters assessed in this
study. Regression analysis of tomato fruits yield against irrigation interval at Samaru and Kadawa.
The result indicated that yield responded linearly negative to irrigation interval at Samaru.
However, a polynomial trend of relationship was obtained at Kadawa where 15 days recorded
higher fruit yield in tons-1.Based on the result obtained in this study,it could be concluded that,
the use of 2 plant stand-1 in combination with 5 days in Samaru and 15 days at Kadawa irrigation
interval gave the best marketable fruit yield of tomato in tons ha-1. Similarly, variety UC82-B was
better than ROMA-VF in terms oftotal fruit yield and marketable yields.
Description
A DISSERTATION SUBMITTED TO THE SCHOOL OF POST GRADUATE STUDIES
AHMADU BELLO UNIVERSITY IN PARTIAL FULFILMENT OF THE REQUIREMENTS
FOR THE AWARD OF MASTERS OF SCIENCE DEGREE IN AGRONOMY
DEPARTMENT OF AGRONOMY,
FACULTY OF AGRICULTURE,
AHMADU BELLO UNIVERSITY,
ZARIA, NIGERIA
Keywords
RESPONSE OF TOMATO VARIETIES,, (SolanumlycopersiconMill),, IRRIGATION INTERVAL,, STAND DENSITY,, NORTHERN GUINEA,, SUDAN SAVANAH,, NIGERIA