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Hainan Island, water physiological ecology of cashew


Water metabolism and the strength of the tree, test results shown in Table 2. A 2 strains of the fruit preparation levels Tan leaf water potential () diurnal variation of {a h Ⅱ) (n = 3) determined from the results of Table 2 shows the levels of leaves from different plants, the water and heat (w) degree of change is different. Early morning (7:00) lower temperature,[link widoczny dla zalogowanych], relative humidity is higher, plant leaf water potential at all levels (), approximate value, with the transfer when asked, light intensity increases, higher temperatures, plant leaves water potential (1f 『w ) is different according to leaf position against the reduction, the trend is the upper function of leaf water potential (t) less than the lower leaf water potential (t) 1.22 times, a phenomenon at noon (12 pm) seems the most prominent obvious. In the evening (19 pm) in different plant leaf water potential (handsome) have been continued to rise. 2.3 The plant tissue water deficit and water demand stage a degree of variation in tropical regions of Hainan. However,[link widoczny dla zalogowanych], the corresponding island water,[link widoczny dla zalogowanych], soil heat, wind and other natural conditions,[link widoczny dla zalogowanych], clear differences between the artificial cultivation of cashew in different habitats in different water conditions, the test results shown in Table 3. A 3 strains from different areas of water deficit warm fruit Tan Wan and ■ water 【%) (n = 3) Table 3 Test results show that the cashew body in the water stress,[link widoczny dla zalogowanych], all have some anti-dehydration <holding water) capacity, However, background levels of different habitats, plants need water resistance degree of dehydration and were significantly different. For example, compared the magnitude of the critical saturation deficit, Luo cashew Buddha higher than those in Meishan and coconut trees 2.09,3.27, water demand is lower than the level of the latter 3. Harrier, 5.56, that is to say Mingluo Buddha cashew production of Water, drought-resistant ability, Meishan, followed by cashew nuts. 2.4 The plant transpiration rate changes and the corresponding habitat (light intensity, air temperature, relative humidity), although the correlation analysis of the transpiration rate can not be the identification of the physiological indicators of drought resistance of plants, but its root water uptake, the tree and the distribution of substances in the body of work greatly, while the transpiration rate and the environment (light intensity, temperature and relative humidity) factor related closely. The results reflect the early morning (7:00) transpiration rate (n) from low to high solar radiation associated with the rise of temperature increase and gradually increased. Noon (11-12h) of the largest peak (119.2), the afternoon continued to decline. The evening (19h) and reached the lowest decline in value (14.1). Showing early and late low, high noon, a single peak curve (Fig. 1). South Island Nang fruit bearing sub-toxic physiological ecology of the temperature (AT) and relative humidity (RH) at both lag behind the light changes, so. Temperature (AT) B change and listless: 'Teng rate (n) B is not very consistent trend of change, especially in the afternoon to the evening this time, the air relative humidity = (RH) and diurnal variation of transpiration rate (Tr) B negative correlation trend changes also occurred off the state. Such as the evening. Light I2e '∞ ● strong little -. ∞ _ a Mountain. = ∞ suddenly Wong. _ ∞ home. ∞ 2o 'He - 7:0 o11: 0015: O019: O09: O0L3: O0L7: O0 ~ (199o. & 20) (1I) shake the weak, the temperature fell by 2l ℃, atmospheric relative degree of punishment resentment (RH) only 38%, the transpiration rate of ring 1 ■ violence soup ■ soil level (n) and the corresponding habitat day beans cartridge water potential (diurnal variation (h) have reduced the column during the day and its lowest point. Bing (u), Air Bud cT), too j mantle gas Kom degree cRH) small technical potential (groan) shows that cashew listless Teng rate (n) B change and light intensity (\Award of the phase between the attack. 2.5 Wood sub-soil conditions on the growth of shaggy morning storm soil moisture conditions ■ rafter system on plant growth and material absorption, translocation and biosynthesis greater impact. soil moisture supply. will inevitably suppress Plant growth of new shoots. reduce the rate of fruit branches and fruit weight and fruit set. sampling results are listed in Table Bay View 4. atlanto origin ± 4 Ma is not a storm water situation in former times when a Health and Green shaggy n = 3 real visit from Table 4 value is easy to see, habitat moisture content 20-23%, the cashew plant height, fruit number and fruit set and fruit weight of water than the soil of ancient order of 13-19% increase 6.48%, respectively, 69. 51%, 44.98% and 32.48%. t_ |}: width of the field of wood research Ridge jobs | I-sheng stack, with the toxic soil twilight Hui * ride.
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