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(一)苗情观察的主要结果: 1、初步观察了解,我区棉花目前的当家品种的生育进程和生育期,大致如表一: 棉花的生育进程和生育期受气温、日照、降水量、土壤、肥料和管理等的影响很大。上表说明:今年丰城、高安县部份棉花是早播晚发的。 2、初步观察了解到棉花长势长相的形态指标和生育状况的关系;棉株的主茎日增量、红茎比、叶位,叶角、叶面系数、叶色、倒四叶(功能叶)宽,长度和蕾铃消长、三桃比例、内外围桃、蕾铃脱落率等,都是棉花生育过程中营养生长和生殖生长以及生理上是否正常的外部形态上的反应。以主茎日增量为例,见下图:
(A) the main results observed in the observation of the situation: 1, preliminary observation to understand that the current cotton varieties in our region’s reproductive process and growth period, generally as shown in Table 1: The growth and development of cotton by the temperature, sunshine, precipitation, Soil, fertilizers and management have a huge impact. The table shows: Fengcheng this year, Gao’an County, part of the cotton is late-onset early broadcast. The relationship between the morphological index of cotton growing and its reproductive status was preliminary observed. The daily increment of main stem, the ratio of red stem to stem, leaf position, leaf angle, leaf surface coefficient, leaf color, inverted leaf ) Width, length and the growth and development of the buds, the ratio of three peaches, the peach and the buds of the inner and outer peaches and the abscission rate of the buds are the external morphological responses of vegetative and reproductive growth and physiology in cotton growth. Take the main stem daily increment as an example, see below: