华南农业大学学报
華南農業大學學報
화남농업대학학보
JOURNAL OF SOUTH CHINA AGRICULTURAL UNIVERSITY
2014年
5期
98-101,107
,共5页
邝雷%邓小梅%陈思%曲文婷%扎西曲珍%陈晓阳
鄺雷%鄧小梅%陳思%麯文婷%扎西麯珍%陳曉暘
광뢰%산소매%진사%곡문정%찰서곡진%진효양
任豆%种源%容器苗%苗期%生长节律
任豆%種源%容器苗%苗期%生長節律
임두%충원%용기묘%묘기%생장절률
Zenia insignis%provenance%container seedling%seedling stage%growth rhythm
【目的】了解4个不同种源任豆Zenia insignis的苗期生长规律.【方法】对任豆容器苗的生长进行定期观测,并采用Logistic方程对其苗高和地径生长曲线进行拟合,估算生长参数.【结果和结论】任豆苗木的年生长节律呈现出“S”型生长曲线,决定系数为0.954~0.983,均达到极显著水平,可以利用Logistic方程对其生长动态进行拟合.不同种源生长节律有所不同,但总体上可划分为4个阶段.即出苗期(3月1日之前)、生长前期(苗高3月1日-4月30日,地径3月1日-4月9日)、速生期(苗高4月30日-9月20日,地径4月9-10月12日)、生长后期(苗高9月20日之后、地径10月12日之后).但是,不同种源4个阶段的起止时间和持续时间有一定的差异.
【目的】瞭解4箇不同種源任豆Zenia insignis的苗期生長規律.【方法】對任豆容器苗的生長進行定期觀測,併採用Logistic方程對其苗高和地徑生長麯線進行擬閤,估算生長參數.【結果和結論】任豆苗木的年生長節律呈現齣“S”型生長麯線,決定繫數為0.954~0.983,均達到極顯著水平,可以利用Logistic方程對其生長動態進行擬閤.不同種源生長節律有所不同,但總體上可劃分為4箇階段.即齣苗期(3月1日之前)、生長前期(苗高3月1日-4月30日,地徑3月1日-4月9日)、速生期(苗高4月30日-9月20日,地徑4月9-10月12日)、生長後期(苗高9月20日之後、地徑10月12日之後).但是,不同種源4箇階段的起止時間和持續時間有一定的差異.
【목적】료해4개불동충원임두Zenia insignis적묘기생장규률.【방법】대임두용기묘적생장진행정기관측,병채용Logistic방정대기묘고화지경생장곡선진행의합,고산생장삼수.【결과화결론】임두묘목적년생장절률정현출“S”형생장곡선,결정계수위0.954~0.983,균체도겁현저수평,가이이용Logistic방정대기생장동태진행의합.불동충원생장절률유소불동,단총체상가화분위4개계단.즉출묘기(3월1일지전)、생장전기(묘고3월1일-4월30일,지경3월1일-4월9일)、속생기(묘고4월30일-9월20일,지경4월9-10월12일)、생장후기(묘고9월20일지후、지경10월12일지후).단시,불동충원4개계단적기지시간화지속시간유일정적차이.
Objective The purpose of this study was to understand the seedling growth rhythm of Zenia insignis from four different provenances .[Method] The container seedling growth rhythm of Z.insignis was observed periodically .The growth curves of seedling height and ground diameter were built using the Logistic equation , and growth parameters were estimated .[Result and conclusion] The result showed that the growth rhythm showed a “S” type curve.The determination coefficient varied from 0.954 to 0.983, and the fitting degree reached an extremely significant level .Therefore , seedling growth dynamics could be fitted by the Logistic equation .Different provenances showed different growth rhythms , but seedling growth of Z.insignis could be divided into 4 stages in general .The seedling germination stage was before March 1st;the early growth stage was from March 1st to April 30th in height, and from March 1st to A-pril 9th in diameter;the fast-growing stage was from April 30th to September 20th in height, and from A-pril 9th to October 12th in diameter;late growth stage was after September 20th in height and after Octo-ber 12th in diameter.However, different provenances of Z.insignis showed differences in the starting and ending time and the duration of the 4 growth stages .