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Leek leaf and tiller growth dynamics Preliminary Study

The average maximum leaf length 25.05cm, 791 to 24.36cm, Jiaxing white roots as 24O8cm, Tianjin No. cited as 22.14cm, Hanzhong winter leek is 23.55cm; length to maximum leaf length of the average number of days: 1 leek Yu to 1816 days, 791 to 1754 days, Jiaxing white roots I8.37 days, Tianjin cited One 17.80 days. 2.1.6 The daily growth rate leaves can be seen from Table 3, the tested varieties for two years as the average daily growth rate Leaves 1.45cm. Among them,[link widoczny dla zalogowanych], Yu chives 1 as 1.57cm, 791, Hanzhong winter leek is 152cm, Jiaxing white roots 1.42 ∞, Tianjin No. cited as 1.4cm. Leaves at different months in different growth, growth in February at least leaves an average of 054cm, where the largest 791 (0.7 Henan Agricultural Sciences cm). Hanzhong winter leek is only 0.36cm; 5 月份 growth of leaves at the largest, with an average of 2.43C / / /, is the fastest growing in the month of the year, the growth of the 1st peak form; August average daily growth of 2.23crD. To form the 2nd growth peak; August later. Growth gradually slowed down; to 1O month, average daily growth rate was 0.97cm, while the 791 is still an average of 1.24cm at the speed of growth, showed strong resistance to the cold i into November, daily growth was significantly reduced slow, an average of 0.51cm. The results can be seen from the above, leeks, begin from the trees in February. May and 8, the growth sequence is the best month in June and July temperature inhibited the growth of leek leaves. Xiang 3, the day of delivery of equipment Leaf growth (unit: cm) 2.2 tiller law introduced in 1991, Tianjin No. 6 tillers per plant, Henan No. 4.56 l leek. Jiaxing white root 3.44. Hanzhong winter leek 3. 791 to 2.33; 1992,[link widoczny dla zalogowanych], 2.9,[link widoczny dla zalogowanych], 1 leek Henan, Tianjin and lead No. 2.6, 1.8 Jiaxing white root, 791 for the 1.7. The same order of two years, but the tiller number in 1992 was less than 1991. Time within one year of the tiller from the point of view, May began to tiller, two peaks throughout the year, 1st in 6 to 7 months, then the number of leaves per plant with the largest tiller to create the conditions for leek. The tillers accounted for 37.5% of the total tiller; 2nd tiller peak in October, accounting for 10.48% of total tillers. 1991 tiller volume, two tillers obvious; tillers decreased significantly in 1992,[link widoczny dla zalogowanych], the 225 tillers per plant species. 134 young than in 1991, while the 1st to the main tiller. This shows that the tillering capacity and life force of leek strength is closely related to leeks longer growth period. Reduced viability, reduced tillering capacity. 3 Conclusion The results show that the average temperature in February each year about 5 ℃. Cold resistance chive varieties significantly faster leaf growth, not cold varieties have begun to grow new leaves the ground, marking the leek leaf growth cycle of the new year begins. In general leek leaves of plant species from 31 to 52 varieties of leaf growth distribution of cold in 2 to 12 months; not cold varieties distributed in 2 to 10 months, in early November with only a small amount of leaf surface. In the daily mean temperature 5 ~ 30 ℃, the leaf temperature was positively correlated with the distribution. Peak occurrence in the annual leek leaf from May to July, the annual accounts of the leaf occurs 44.34% of total volume occurred. New leaves replaced senescent annual average number of days interval was 8.1 days. Leek leaves the average daily growth rate for the 145cm, there are two peaks in one year, respectively, in May and August, daily growth volume in more than 2.0m1. Chives are also two peaks a year tiller. 1st time in 6 to 7 months, 2 times in October to the 1st main tiller. So. 4 to 5 months and 8 to 10 months is the growth of leek season. Leek leaves leaf age, with an average of 38 to 41 days, but the growth of leaves on the length of the different leaf age, leaf age of high temperature short, low temperature and leaf age long. Leaf growth to a maximum of 19 days it normally takes 17 to leaf growth under high temperature conditions to reduce the maximum number of days, a negative correlation with temperature. Chives in the market supply,[link widoczny dla zalogowanych], the general law of supply for the low-temperature, high prices leek, effective, low price of vegetables during the high temperature and poor efficiency. Therefore, the production and harvesting leek should be market-oriented growth based on the characteristics of leek leaves. In addition to protected cultivation, but to take corresponding measures, grasp the spring 3 to 5 months of management and harvesting; summer, 6 to August are generally not harvested to enhance his fields and management. Promote root male trees; Fall 9 November improve water and fertilizer management, harvesting supplies in the off-season to improve economic efficiency; December to next February. To strengthen management in winter, high yield and quality for the following year laid the foundation leek
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