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American Journal of Agriculture, Horticulture and Soil Science (AJAHS)  01

RESEARCH ON HEADING DATE FOR SYNCHRONIZATION AND HYBRIDIZATION OF FIVE RICE VARIETIES BENEATH BRIEF DAY DURATION AND NEUTRAL DAY PERIOD

By, Journal ID: AJAHS-24-06-2019-0
(This article belongs to Vol - 01, Issue - 01)

Abstract

Rice is a brief day plant and flowering is promoted in quick day situations and suppressed in long day condition. the short-day condition allows the manufacturing of flowers in distinct flowering ranges which substantially helps synchronous flowering for sorts that fluctuate of their flowering time. The heading date for synchronization of Paw San Hmwe (PSM) and other four indica rice sorts were studied below short-day period and neutral day length circumstance and F1 seed set become observed from hybridization of PSM and indica rice varieties by using hot water emasculation method. results confirmed days to a heading of PSM and different four indica sorts in short day period have been earlier than those in impartial day duration. some of the examined types, PSM changed into rather touchy to high temperature and photoperiod in impartial day length because of no longer most effective flowering in short-day photoperiod circumstance however additionally photoperiod sensitive and past due cultivar. the existing examine revealed that although five rice varieties have been cultivated to modify synchronization underneath impartial day length and brief day length for hybridization, synchronization for PSM and different 4 indica rice types become now not located in both conditions as it might be distinctive genetic version on the tested varieties and sowing date of examined types changed into same underneath neutral day length and short day period circumstance. Synchronization changed into determined in short day period and cultivation in a concrete tank of internet residence. PSM from quick day duration circumstance become used as a female determine for hybridization because it was synchronized with the alternative three indica sorts from 2nd-time cultivation within the concrete tank of internet residence. The F1 seed set percent of PSM x IR 24 became higher than the other tested crosses and collected two F1 hybrids (PSM x IR 24 and PSM x Thaichung 65). therefore, brief day period condition (9-hour light and 15 hours darkish) may be used for synchronization and hybridization on rice genotypes mainly PSM (photoperiod sensitive range) compared to impartial day length situation. The F1 hybrids (PSM x IR 24 and PSM x Thaichung 65) from this study need to be used to get new rice varieties through several techniques

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American Journal of Agriculture, Horticulture and Soil Science (AJAHS)  ISSN 2227-2078 Published by SDIP, London, United Kingdom.
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