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Bottle gourd is an edible cucurbit with an ancient pan-tropical
distribution. Main breeding objectives of bottle gourd are the high
yielding varieties. The production of hybrid is easier in bottle
gourd as it is monoecious and this sex form facilitates hybrid seed
production rather easily. The identification of the plant cultivars
purely based on morphological and reproductive characters is not
reliable because morphological characters are influenced by
environmental factors and stress. Biochemical markers have been
extensively used for characterization of species and cultivars. In
recent past, attempts have been made with considerable amount of
success, to exploit phenomenon of heterosis in bottle gourd. In
continuation of these attempts, therefore, the present book
entitled "Bottle Gourd Breeding was prepared.To provides an
overview of hybrid development and seed protein electrophoresis in
bottle gourd with emphasis on Indian perspectives. We sincerely
hope that this publication will be immense value to the cucurbit
breeders, scientists, students and policy makers and will serve as
a launching pad to herald new initiatives in the area of research
in bottle gourd.
Cauliflower is a widely cultivated and consumed vegetable across
the world. Variability in genetic resources since time immemorial
has always played a key role in the development of promising lines
and ultimately the yield improvement. The observed variability is a
combined estimate of genetic and environmental factors, of which
only former one is heritable. It is well known that selection of
one trait leads to a correlated response in other characters since
a living unit is not merely a sum of independent part but is
integrated as a whole, having a complex relationship among
different characters. Path coefficient analysis helps for
portioning of the total correlations into direct and indirect
effects and useful in formulating selection indices for genetic
improvement of yield. The present book provides an overview of
germplasm collection and evaluation of cauliflower with emphasis on
Indian Perspectives. We sincerely hope that this publication will
be immense value to the vegetable scientists, students and policy
makers and will serve as a launching pad to herald new initiatives
in the area of research.
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