Selection of Material for Purifying Research and Degradation Reason of Lengshui Red Rice in High Mountain of Shennongjia
LU Lei
XU Xue
DUAN Junzhi
ZHANG Qingdong
WANG Ying
WANG Yulian
LI Nian
YAO Guoxin
Abstract：In order to provide quality guarantee for germplasm conservation and development and utilization,we analyzed the plant trait and degraded reason of Lengshui red rice in high mountain of Shennongjia,measured the agronomic traits and nutritional ingredients of three types,finally found the Lengshui red rice type of purification and rejuvenation.The degraded reasons were planting reserved seed for a long time,mixing by machine harvest and mixed planting with deferent rice varieties.Compared to small grain with no awn type and big grain with long awn type,panicle length,number of primary branch,number of second branch and number of grain per panicle of big grain with short awn all increased by 0.7 cm,2.00, 3.70,31.00,3.00 g,and 1.20 cm,3.00,7.50,35.00,0.20 g respectively.Compared to small grain with no awn and big grain with long awn types,fat and 17 amino acid contents of big grain with short awn significantly increased by 2. 79%,2. 84% and 7. 27%,4. 13% respectively. Amylose and protein contents of big grain with short awn type were between small grain with no awn type and big grain with long awn type. In summary,big grain with short awn type could be purified as Lengshui red rice germplasm in Shennongjia.
Keywords：ShennongjiaHigh mountain riceLengshui red riceDegradationPurifying
Publication Date：2018-01-31
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 29-31,72 )