Effects of chemical desiccation and early harvesting on Sorghum [Sorghum bicolor (L.) Moench] seed germination /

and 23% grain moisture contents for the desiccation study and

Bibliographic Details
Main Author: Gouveia, Sergio, 1958-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1994.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:and 23% grain moisture contents for the desiccation study and
and 45 days after anthesis. At Lubbock germination percent
at Lubbock the best harvest date may not have been reached in
by their differences in response to desiccation. The first
cultivar effects also were significant. Over all cultivars,
cultivars, germination remained relatively constant. The
cultivars, seed germination remained relatively constant
days after anthesis. The different cultivars could be grouped
decline in germination percentage. In the third group of
diseases, that can cause,deterioration of sorghum seed.
experiments were to study effects of chemical desiccation and
Field and laboratory experiments were conducted at two
fourth group shows a development of dormancy, which can he
Germination also increased with increased days after
germination percentage tended to increase with a decrease in
gradually with decreasing field grain moisture content,
group included cultivars with germination that increased
harvest after anthesis. The second group reacted the same
harvested as early as 50 days post -anthesis. Advantages of
harvested at 12 to 15% grain moisture. For the grain
harvesting. Three groups could be established by considering
implying a gradual release of dormancy. The second group
included cultivars with germination that decreased gradually;
increased gradually with increase in number of days of
increased to a peak at 50 days after anthesis. Implying that
indicating accumulation of dormancy. In the third group of
like frost, rainfall, and late season insect pests and
locations over two years in Texas. Objectives of these
maturity study seed were harvested at 30, 35, 40, 45, and 50
moisture content in the grain at time of desiccation.
number of days of harvest. Results indicated that at College
seed maturity at harvest on sorghum seed germination.
seen by the sharp decline of germination with increase in
Sorghum plants were desiccated in the field at 35, 30, 25,
stages. The first group includes those that germination
Station the optimum time for harvesting could be between 35
the cultivars response to harvesting at different maturity
the range covered by this study, or that seeds could be
this scenario is the avoidance of environmental catastrophes
throughout the moisture range of this study. At Lubbock,
way of the first group, but seed harvested 45 days started to
Item Description:"Major subject: Plant Breeding".
Vita.
Physical Description:xvi, 81 leaves : illustrations ; 28 cm.
Also available online.
Bibliography:Includes bibliographical references.