Open Access E-Repository @ Indian Institute of Horticultural Research >
Theses and Dissertations >
DIVISION OF VEGETABLE CROPS >
Please use this identifier to cite or link to this item:
|Title: ||Comparative study of pea lines with variable resistance to powdery mildew (Erysiphae polygoni DC) and rust (Uromyces fabae (Pers) de Bary) diseases|
|Authors: ||V, Nagaraju|
|Guide/Chairperson: ||A B, Pal|
|Issue Date: ||1986|
|Year of Submission: ||1986|
|Abstract: ||A comparative study of pea lines with variable resistance to powdery mildew as well as
rust diseases and their influence on yield components was carried out. Sixteen lines
having different categories of resistance were used in the experiment laid out in a
randomized block design with three replications. The observations were recorded on
various growth and yield parameters. It was observed that the incidence of powdery
mildew and rust diseases were negatively associated with the yield components. The
resistant lines maintained superiority over susceptible lines with pods per plant, green pod
yield per plant and number of seeds per plant. About 44.11% reduction in pod yield was
recorded in susceptible lines. Yield per plant and yield per pods was negatively correlated
with the disease incidence. Resistant lines were stable with regard to pods per plant.
However, susceptible lines were adversely affected with regard to this trait. The
qualitative characters such as sweetness were not much associated with disease intensity.
Shelling percentage was found to be superior in case of pea line resistant to either of the
diseases. In general, the characters like number of pods per plant, number of seeds per
pod and number of seeds per plants were adversely affected by the two diseases. Pod
yield per plant was affected more due to rust disease than powdery mildew as the
correlation was negative and significant.
|University in which they received their degree: ||University of Agricultural Sciences, Bangalore|
|Degree Level: ||M.Sc|
|Appears in Collections:||DIVISION OF VEGETABLE CROPS|
Items in E-Repository@IIHR are protected by copyright, with all rights reserved, unless otherwise indicated.